Automated finishing and polishing technology for cast iron parts

How to deburr, descale, polish, brighten the cast iron parts?

Items cast from molten iron are collectively called cast iron parts. Due to the influence of the manufacturing process, defects such as pores, pinholes, slag inclusions, cracks, pits, rust spots, burrs, and flash often occur. Do you know how to automatically remove burrs, flash, rust and scale, and polish and brighten cast iron parts? In this case, we will share the process technology and methods of deburring, derusting and descaling, and polishing brightness of an electric hardware used in the power industry – steel foot cast iron parts. This polishing process solution is also applicable to the surface polishing of other hard metal casting parts.

    • jerrylu
    • 2024-06-03
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deburring, derusting, descaling, polishing, brightening effect of precision bearing steel casting iron feet

1. Cast iron steel feet before polishing
The surface burrs and oxide scale of cast iron feet before polishing

Materials:

cast iron

Appearance:

thick oxide skin on the surface

Shape:

barbell-shaped iron castings

Size:

40*200MM

Pre-polishing process:

rolling

Post-polishing process:

galvanizing

2. Finishing and polishing requirements
  • deburring, descaling
  • smooth, bright surface, no burrs, no oxide scale
3. Cast iron steel foot polishing process details:
Process steps （1） rough finishing of deburring, descaling （2） fine polishing （3） vibratory dryer
Machinery and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Speed highest highest highest
Tumbling media Angle cut cylinder ceramic media Spherical stainless steel media corn cob polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount，the liquid level does not exceed the tumbling media appropriate amount，the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibratory drying
4. Cast iron feet after finishing and polishing
deburring, descaling, polishing, brightening of steel foot cast iron parts

rough finishing

steel foot cast iron parts after finishing and polishing

after fine finishing and polishing

5. Additional instructions
  • Cast iron parts are generally medium-to-large product components, and most of the surface treatments are done by sandblasting and shot blasting. However, this product is small in size and large in quantity, with a daily output of several tons. In order to improve efficiency and surface treatment quality, a vibratory finisher is used with heavy-cutting-force angle cut cylinder tumbling media for rough finishing. The sharp edge of the ceramic media can reach into grooves, corners, and gaps to remove burrs and oxide layers.
    For brightening polishing, a general-purpose vibratory polishing machine is used. The polishing media is made of stainless steel ball specially designed for polishing brightness, which can improve the surface brightness and achieve a shiny effect.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a anti-rust liquid for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case, we demonstrated the process of deburring, descaling, derusting, polishing, brightening of a steel foot of cast iron product using a polishing machine.
  • If you need professional technical support for the following polishing issues of cast steel parts, you can refer to the above cases:
    Polishing of cast iron parts
    How long does it usually take to polish cast iron parts
    Methods for deburring cast iron parts
    Automation of deburring cast iron parts
    Rust removal of cast iron parts
    How to remove rust from cast iron
    How to remove oxide scale from cast iron parts
    What are the methods for removing rust from cast iron parts
    How to remove rust from cast iron parts
    Polishing of cast iron parts
    Polishing of castings
    How to polish iron products
    Polishing and finishing of cast iron
    Polishing process of cast iron
    How to remove burrs from iron parts
    Descaling of castings
    Polishing process of cast iron
    What are the methods and techniques for polishing castings
    Polishing technology of pig iron
    Polishing process of electric hardware

How to deburr, descale, polish carbide mechanical seal parts?

Finishing and polishing technology of mechanical seal parts of cemented carbide products

Mechanical seals are precise and complex basic mechanical components. Commonly used metal materials include hard alloys (such as tungsten carbide), high silicon iron, nickel-chromium steel, chrome steel, bronze, carbon steel and cast iron, etc., which will produce burrs, flash, scratches, oxide scale and other defects during the manufacturing process. Do you know what kind of finishing and polishing process mechanical seal parts need to go through to obtain a satisfactory surface effect? ​​In this case, we will share the process technology and methods of deburring, derusting, descaling, polishing and brightening of a hard alloy mechanical seal product. This polishing process solution is also suitable for the surface polishing of sealing parts made by other hard metal materials.

    • jerrylu
    • 2024-06-03
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deburring, derusting and polishing effect of carbide mechanical seal

1. Cemented carbide mechanical seal before polishing
burrs and oxide scale on the surface of mechanical seals of carbide parts before polishing

Materials:

tungsten carbide

Appearance:

edge burrs, surface oxide scale

Shape:

circular

Size:

D 50MM

Pre-polishing process:

powder metallurgy

Post-polishing process:

product assembly

2. Finishing and polishing requirements
  • chamfer and remove flash, grooves without burrs.
  • smooth, bright surface, no burrs, no oxide scale.
3. Details of carbide mechanical seal polishing process:
Process steps （1） rough finishing of chamfering, deburring, descaling （2） fine polishing （3） anti-rust drying
Machinery and equipment centrifugal disc finishing machine centrifugal barrel finishing machine vibratory dryer
Speed highest highest highest
Tumbling media straight cut tri-angle ceramic media 3P finishing media corn cob drying media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount, liquid level is 20mm above the tumbling media appropriate amount, liquid level is 20mm above the tumbling media no
Polishing time 30 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibratory drying
4. Finishing and polishing effect of cemented carbide mechanical seal
deburring, descaling, chamfering, polishing, brightening effect of cemented carbide parts mechanical seal
mass finishing, polishing, burnishing, brightening effect of cemented carbide parts mechanical seal

5. Additional instructions
  • The hardness of tungsten carbide is generally between HRA87 and 94. The product volume is not large, so a centrifugal disc finisher is used, with heavy cutting force straight cut tri-angle ceramic media for rough finishing. The sharp tip of the tumbling media can reach into the groove to remove burrs and chamfers.
    Fine polishing uses a centrifugal barrel finisher with high centrifugal force, so the tumbling media uses high-hardness 3P fine polishing media, which can cut lightly, further reduce the roughness and improve the surface brightness.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a anti-rust liquid for anti-rust treatment after polishing. Finally, a a href=”http://www.shinetec.tech/index.php/en/product/vibratory-dryer-vibrating-drying-machine/” target=”_blank” rel=”noopener”>vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrate the process of chamfering, deburring, descaling, polishing and brightening the surface of a mechanical seal part made of tungsten carbide.
  • If you need professional technical support for the following mechanical seal product polishing issues, you can refer to the above cases:
    Mechanical seal polishing process technology
    Mechanical seal deburring process technology
    Mechanical parts polishing process technology
    Mechanical parts deburring process technology
    Metal parts polishing
    What abrasive is suitable for carbide polishing
    Introduction to carbide polishing technology
    Carbide deburring polishing process
    How to polish carbide
    What to use for polishing carbide
    Methods for descaling of carbide
    Cemented carbide surface polishing
    What finishing and polishing materials are used for carbide
    Mirror polishing of carbide

Deburring,descaling and polishing method of copper alloy die castings (floor sockets)

How to chamfer, deburr, descale, polish and brighten copper alloy die castings?

Copper alloy die casting is a mature and versatile production process, which is used to manufacture a variety of hardware parts products. Commonly copper alloys include copper-aluminum alloy, copper-zinc alloy, copper-nickel alloy, etc. Die casting products will produce burrs, flash, scratches, oxide scale and other defects during the production process. Do you know what kind of finishing and polishing process copper alloy die castings need to go through to obtain a satisfactory surface effect? ​​In this case, we will share a copper alloy floor socket deburring, descaling, polishing, brightening process technology and methods. This polishing process solution is also suitable for the surface polishing of brass, zinc alloy, aluminum alloy, magnesium alloy and other products.

    • jerrylu
    • 2024-06-03
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deburring, derusting, descaling, polishing of copper alloy die castings (floor outlets)

1. copper alloy floor outlet before polishing
copper alloy die castings (floor outlets) surface burrs and oxide scale before polishing

Materials:

copper-zinc alloy

Appearance:

burrs on the edges,oxide scale on the surface

Shape:

square

Size:

120*120MM

Pre-polishing process:

die casting

Post-polishing process:

electroplating

2. requirements for polishing
  • chamfer and remove flash, grooves without burrs.
  • smooth and bright surface, no burrs, no oxide scale
3. Copper alloy floor outlets polishing process details:
Process steps （1） rough finishing, chamfering, deburring, descaling （2） fine polishing （3） vibratory drying
Machine and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Amplitude and speed highest speed highest speed highest speed
Tumbling media Cone resin media Spherical white corundum finishing media corn cob polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level does not exceed the tumbling media appropriate amount, the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibrating drying
4. copper alloy floor outlet after finishing and polishing
copper alloy floor outlet chamfering, deburring, descaling, polishing effect
copper alloy floor socket chamfering, deburring, descaling, polishing effect

5. Additional instructions
  • Copper alloy floor outlets have low hardness and are medium-sized product parts with a large daily processing quantity. Therefore, a vibratory polishing machine is used with a cone plastic media with low hardness to perform rough finishing. The conical tip can touch deep into the groove to remove burrs and chamfers.
    Fine polishing and brightening is also achieved by using a vibrating finishing machine, with spherical white corundum finishing media with high hardness and light cutting force, which can cut a small amount, further reduce the roughness and improve the surface brightness.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in the anti-rust liquid for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrate the process of chamfering, deburring, descaling and polishing the surface of a copper alloy die-casting component, a floor socket.
  • If you need professional technical support for the following product polishing issues, you can refer to the above cases:
    Die casting surface treatment process
    Die casting polishing process
    Die casting deburring process
    Die casting deburring method
    How to remove oxide scale from die casting
    Descaling of die casting aluminum
    Copper alloy die casting product polishing process
    Copper alloy hardware polishing
    Copper alloy mechanical polishing
    Copper alloy polishing skills
    Copper alloy die casting deburring method
    How to deal with copper alloy die casting deburring
    Copper alloy deoxidation method
    Aluminum alloy die casting product polishing process
    Zinc alloy die casting product polishing
    Aluminum alloy die casting product deburring
    Aluminum alloy hardware polishing
    How to deburr zinc alloy hardware

Polishing technology and method of powder metallurgy products

How to chamfer, deburr and descale the powder metallurgy parts?

Powder metallurgy is an advanced industrial technology that uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and forms various types of products through forming and sintering. It is very suitable for mass production. In addition, some materials and complex parts that cannot be prepared by traditional casting methods and machining methods can also be manufactured using powder metallurgy technology, so it has received much attention from the industry. Do you know what kind of finishing and polishing process powder metallurgy products need to go through to obtain a satisfactory surface effect? ​​In this case, we will share a process technology and method for chamfering, deburring, descaling, polishing and brightening of powder metallurgy gear parts. This polishing solution is also suitable for the surface polishing of powder sintered sprockets, bushings, structural parts, 3D printing products and metal powder injection molding products.

    • jerrylu
    • 2024-06-03
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deburring,derusting and polishing effects of powder metallurgy gear parts

1. The surface of powder metallurgy gear parts before polishing
burrs and scale of powder metallurgy gear parts before polishing

Materials:

Iron-copper powder mixture

Appearance:

burrs on the edges of the teeth and grooves,
oxide scale on the surface

Shape:

gear

Size:

35*50MM

Pre-polishing process:

powder metallurgy

Post-polishing process:

packing

2. Requirements for polishing
  • chamfering of tooth edge, deburring of the grooves.
  • smooth and brighten surface, no burrs, no oxide scale.
3. Powder metallurgy gear parts polishing process details:
Process steps （1） rough deburring,chamfering,descaling （2） fine polishing （3） anti-rust drying
Machine and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Amplitude and speed highest speed highest speed highest speed
Tumbling media angle cut cylinder ceramic media spherical white corundum finishing media no
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid anti-rust liquid
Water appropriate amount, the liquid level does not exceed the tumbling media appropriate amount, the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 30 minutes
Remark automatic separating and picking up, rinsing with water automatic separating and picking up, rinsing with water anti-rust liquid soaking, vibrating drying
4. Effect of powder metallurgy gear parts after finishing and polishing
powder metallurgy gear parts chamfering, deburring, descaling, polishing, brightening effect
chamfering, deburring, descaling, polishing, burnishing effect of powder metallurgy gear parts

5. Additional instructions
  • This powder metallurgy product is a small-sized workpiece, and the burrs are mainly concentrated on the the tooth edges. The daily processing quantity is large, so a vibrating finishing machine is used, and a heavy-cutting angle cut cylinder deburring tumbling media is used for rough finishing. The sharp corner of angle cut cylinder can reach into the grooves between the tooth edges to remove burrs and chamfer.
    Fine polishing and brightening is also achieved by using a vibratory polishing machine, with the high-hardness, light-cutting spherical white corundum finishing media for fine finishing, which can perform micro-cutting, further reduce roughness, and improve surface brightness.
  • Because the product processing quantity is large, the product separating can be done by using vibratory separator to improve efficiency.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a rust inhibitor for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrate the process of surface chamfering, deburring, descaling, polishing and brightening of a powder metallurgy gear component.
  • This process solution is also suitable for surface polishing of powder metallurgy sprockets, bushings, structural parts, 3D printing products and metal powder injection molding products.

Metal material hafnium parts polishing and deburring process technology method

How to automatically and quickly chamfer, deburr and polish small hafnium parts?

Metal materials include carbon steel, general-purpose alloys such as aluminum alloys, stainless steel, zinc alloys, etc.; and high-purity elemental metals, such as gold, silver, copper, aluminum, hafnium, gallium and other metals; high-purity precision alloy materials such as aluminum-copper alloys , molybdenum and niobium alloys, etc.; precious metals & rare metals such as titanium, iridium, tungsten, etc.; and rare earth metals such as cerium, gadolinium, lanthanum, etc., in the shapes of plates, coils, rods, pipes, wires, grain, blocks, ingots, Powder etc. To obtain a satisfactory surface effect, do you know what kind of finishing and polishing process is required for the burrs, flash, and scale produced after metal materials are cast, forged, rolled, drawn, pierced, stamped, sheared, etc. ? In this case, we will share the process solution for chamfering, deburring, and descaling and polishing the surface of metal hafnium parts. This polishing process is also suitable for surface polishing of other hard metal products.

    • jerrylu
    • 2024-06-03
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Metal material hafnium parts deburring, rust removal, polishing effect

1. Metal hafnium parts before polishing
burrs and oxide scale before deburring, polishing of metal material hafnium parts

Materials:

metal hafnium

Appearance:

burrs on the cut surface and oxide scale on the surface.

Shape:

cylinder

Size:

2.5*15MM

Pre-polishing process:

sawing

Post polishing process:

packing

2. Requirements for deburring and polishing
  • cutting end is chamfered without burrs.
  • smooth,brightened surface, no burrs, oxide scale.
3. Details of the polishing process of metal hafnium parts:
Process steps （1） rough finishing, chamfering, deburring and descaling （2） fine polishing （3） drying
Machine and equipment centrifugal barrel finisher centrifugal barrel finisher centrifugal spin dryer
Amplitude and speed high speed high speed high speed
Tumbling media spherical ceramic deburring media spherical white corundum finishnig media no
Abrasive media to workpiece ratio 4：1 6：1 no
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level exceeds the abrasive media by 20mm appropriate amount, the liquid level exceeds the abrasive media by 20mm no
Polishing time 30 minutes 30 minutes 15 minutes
Remark manual separating and picking up, rinsing with water manual separating and picking up, rinsing with water drying, no separating
4. The effect after polishing of metal hafnium parts
The effect after chamfering, deburring, descaling and polishing of hafnium metal small parts
comparison of the polished effects of hafnium metal small parts

5. Additional instructions
  • Because this hafnium product is a small-sized workpiece with high hardness, it requires strong cutting force to chamfer, deburr and remove scale. Therefore, the rough finishing process is using high-speed centrifugal barrel finishing machine, with heavy cutting force ceramic deburring ball.
    The precision finishing and polishing brightness also uses a centrifugal barrel finishing machine, with high hardness and light cutting force white corundum polishing ball to improve surface brightness.
  • Because the number of products processed is small, product separating can be done manually using screens to reduce equipment purchase costs.
  • In order to improve the anti-rust and anti-corrosion performance of the product after being exposed to water, a centrifugal spin dryer used for drying.

6. Final summary
  • In this case, we demonstrate a process for surface chamfering, deburring and polishing of parts machined with metallic material – hafnium.
  • This process is also suitable for surface polishing of other hard metal material processing parts.

How to deburr,descale, polish stainless steel sheet metal parts?

Automatic and rapid chamfering, deburring and polishing method for special-shaped non-standard stainless steel sheet metal parts

Stainless steel sheet metal processing parts are generally cut by laser cutting machines, sheared by shears, stamped by punches, bent by bending machines, or welded. So do you know what kind of finishing and polishing process this stainless steel product needs to go through to chamfer, remove burrs, flash, rust and scale to obtain a satisfactory surface effect? In this case, we will share the surface chamfering and deburring polishing process of a special-shaped non-standard stainless steel laser-cut sheet metal part. This polishing process is also suitable for surface polishing of carbon steel, aluminum alloy and other materials.

    • jerrylu
    • 2024-06-03
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Stainless steel sheet metal processing parts deburring, derusting, polishing effect

1. Stainless steel sheet parts before polishing
burrs and oxide scale before polishing of stainless steel sheet parts

Materials:

stainless steel

Appearance:

burrs, sharp cutting edge, protective film on the back

Shape:

simple curve

Size:

0.3*50*150MM

Pre-polishing process:

laser cutting

Post polishing process:

powder coating

2. Requirements for finishing and polishing
  • smooth surface,no burrs, scale.
  • chamfer,no cutting edge
3. Details of polishing process for stainless steel sheet parts
Process steps （1） rough finishing chamfering and deburring （2） drying
Machine and equipment centrifugal barrel finishing machine vibratory dryer
Amplitude and speed slow speed full speed
Tumbling media cone resin media corn cob drying media
Abrasive media to workpiece ratio 4：1 8：1
Finishing compound finishing liquid no
Water appropriate amount, the liquid level exceeds the abrasive media by 20mm no
Polishing time 30 minutes 30 minutes
Remark automatic separating and picking up, rinsing with water dry parts and wipe away water stains
4. Stainless steel sheet parts after polishing
stainless steel laser cutting metal sheet parts chamfering, deburring, descaling, polishing effect
stainless steel laser cutting metal sheet parts chamfering, deburring, descaling, brightening effect


Note: There is a plastic protective film on the back.

5. Additional instructions
  • Because stainless steel metal sheet processing parts are easily deformed, a centrifugal finishing machine with a small-capacity working barrel is used to reduce the operating speed and use it with softer texture cone-shaped resin media (also called plastic media) is used to chamfer and deburr. If you use ceramic tumbling media or other very hard abrasive media will cause problems such as deformation and bending of the workpiece, and ceramic deburring media can easily contaminate the stainless steel surface and make the surface black.
  • So why don’t polish parts use vibratory polishers? Because the vibrating polishing machine will cause the thin parts to stick to each other, and multiple pieces will fit together, which will not achieve the finishing and polishing effect.
  • Products can be separated automatically using a vibrating separator, to control the vibration amplitude of the vibrating separator so that no bending deformation occurs due to mutual collision.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water cleaning, vibrating dryer, with corn cob polishing media, dry the moisture and wipe away water stains on the surface of the product.

6. Final summary
  • In this case, we demonstrate a process for surface chamfering and deburring of stainless steel laser-cut metal sheet parts using resin finishing media and corn cob drying media.
  • This process is also suitable for surface polishing of sheet metal parts such as carbon steel and aluminum alloys.

Non-standard stainless steel wire forming special-shaped spring chamfering, deburring and polishing solution

How to polish non-standard stainless steel wire formed special-shaped springs?

Stainless steel wire formed special-shaped springs are used in product spare parts and instrument components in the chemical, valve, petroleum, and electric power industries, such as motor brushes, switches, video cameras, and computer accessories. This type of precision spring requires both high strength and a smooth and bright surface. So do you know what kind of finishing and polishing process this stainless steel product undergoes to obtain a satisfactory surface effect? In this case, we will share a polishing process for chamfering and deburring the surface of a non-standard stainless steel wire-formed special-shaped spring. This polishing process is also suitable for surface polishing of compression springs, torsion springs, tension springs, clasp springs, medical springs, special-shaped rods, special-shaped springs and other products.

    • jerrylu
    • 2024-06-03
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Stainless steel spring deburring, descaling, polishing effect

1. Stainless steel wire formed special-shaped springs and buckles before polishing
burrs, oxide scale of stainless steel spring

Materials:

stainless steel

Appearance:

oxide scale and burrs on surface,dark gray.

Shape:

simple curve.

Size:

Ø3*10MM

Pre-polishing process:

cut to shape

Post polishing process:

finished product inspection

2. Requirement for polishing
  • smooth surface, no burrs and scale.
  • reduce surface roughness, increase gloss, and improve brightness.
  • close to mirror polishing effect.
3. Details of stainless steel wire forming special-shaped spring and buckle polishing process
Process steps （1） Coarse finishing to remove burrs and scale （2） Fine polishing （3） Mirror polishing
Machine and equipment vibrating bowl finishing machine vibrating bowl finishing machine tumbling barrel finishing machine
Amplitude and speed highest amplitude,full speed highest amplitude,full speed highest amplitude,full speed
Tumbling media spherical ceramic deburring media stainless steel ball walnut shell polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level should not exceed the tumbling media appropriate amount, the liquid level should not exceed the tumbling media polishing paste
Polishing time 1 hour 30 minutes 6 hours
Remark pick up by hand and rinse with water pick up by hand and rinse with water mirror polishing
4. The effect of stainless steel wire forming special-shaped springs and buckles after finishing and polishing
deburring, descaling and polishing effects of stainless steel wire formed special-shaped springs and buckles
deburring, descaling and brightening effects of stainless steel wire formed special-shaped springs and buckles

5. Additional instructions
  • Because stainless steel is harder material, ceramic deburring ball is used for rough finishing to remove scale and burrs. If you use angle cut triangle ceramic deburring media or angle cut cylinder ceramic deburring media with sharp corners or edges will cause scratches, pitting and other problems on the surface of the product.
  • The workpiece material is hard and has no edges and corners, so it can be automatically separated by a machine. There will be no surface damage caused by collision with each other, which greatly improves the efficiency of discharging materials.
  • For stainless steel product parts, polish with stainless steel polishing ball is very effective in brightening. The surface of the product after rough finishing has no luster, but it will become bright after vibratory fine finishing and polishing with stainless steel media.
    In order to further improve the smoothness and brightness of the product surface, finally use tumbling barrel polishing machine, combined with walnut shell polishing media, achieves a quasi-mirror polishing effect with the support of polishing paste.

6. Final summary
  • In this case, we demonstrate a process of deburring, descaling and brightening for the surface of stainless steel wire-formed special-shaped springs using ceramic deburring media, stainless steel polishing media and mirror polishing media.
  • This process is also suitable for surface polishing of compression springs, torsion springs, tension springs, buckle springs, medical springs, special-shaped rods, special-shaped springs, precision buckles and other products.

How to polish zinc(aluminum) alloy handles?

Mirror polishing method and solution for zinc alloy (aluminum alloy) handles

In this case, we will discuss the polishing process of a zinc alloy (aluminum alloy) door handle.

    • jerrylu
    • 2024-06-03
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Zinc alloy, aluminum alloy hardware deburring, descaling, mirror polishing, brightening effect

1. Zinc alloy and aluminum alloy handle hardware before polishing
Zinc alloy, aluminum alloy hardware surface burrs, oxide scale

Materials:

zinc alloy

Appearance:

surface oxide scales,burrs,gray-white.

Shape:

simple curve. holes in the surface.

Size:

109*20*16mm

Pre-polishing process:

die cast

Post polishing process:

plating

2. Requirements of polishing
  • smooth surface without damage
  • descaling
  • Reduce surface roughness, increase gloss, and improve brightness
3. Details of the zinc alloy hardware handle polishing, deburring and descaling process
Process steps （1） coarse finishing to deburr,descale （2） fine polishing and brightening （3） drying
Machine and equipment vibratory bowl finisher vibratory bowl finisher vibratory dryer
Amplitude and speed highest amplitude,full speed highest amplitude,full speed highest amplitude,full speed
Tumbling media cone resin media spherical stainless steel media corn cob drying media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level should not exceed the tumbling media appropriate amount, the liquid level should not exceed the tumbling media no
Polishing time 1 hour 30 minutes 30 minutes
Remark pick up by hand and rinse with water pick up by hand and rinse with water pick up by hand and rinse with water
4. Effect after finishing, polishing and brightening
surface treatment effect of zinc alloy,aluminum alloy hardware deburring,descaling,polishing,brightening
surface treatment effect of zinc alloy,aluminum alloy hardware deburring,descaling,finishing,burnishing

5. Additional instructions
  • Because the workpiece material is relatively soft, resin media can only be used to roughly remove scale and burrs. If you use ceramic deburring media, so the hardness is too high and the sand grits are too coarse, it will wear the surface of the product and cause scratches, pitting, color contamination and other problems.
  • Also because of the material, if a machine is used for automatic separating, the collision of workpieces will cause surface damage.
  • Zinc alloys can easily re-oxidize when exposed to water and air. Therefore, we need to dry the water immediately after polishing.

6. Final summary
  • In this case, we demonstrate a process of using a resin (plastic) finishing media to deburr, remove scale and brighten on the surface of a zinc alloy handle.
  • This process is also suitable for polishing belt buckles, jewelry pendants, souvenirs, craft gifts and other products produced from aluminum alloy and copper die-casting parts.

How to remove the parting line and flash from rubber sealing O-ring?

How to effectively remove parting line and flash from O-type rubber sealing ring?

In this case, we will discuss the finishing process of a rubber sealing ring to remove the parting line. The materials of this O-ring seal include silicone, nitrile rubber, fluorine rubber, Teflon, rubber, etc., and the finishing process is similar.

    • jerrylu
    • 2024-06-03
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finishing effects of rubber, silicone, fluorine rubber, nitrile rubber, and Teflon O-ring seals to remove parting line, flash

1. The O-ring seal with the parting line before finishing
Rubber, silicone, fluorine rubber, nitrile rubber, Teflon O-ring seal surface parting line

Materials:

Rubber

Apparance:

Parting lines and flash.

Shape:

O-shaped, diameters vary in size,
There are also prismatic circles.


Size:

Φ300*4mm

Pre-finishing process:

Injection molding.

Post finishing process:

Drying and packaging.

2. Finishing requirements
  • Smooth surface, no parting line.
  • Deflashing
  • Reduce surface roughness, increase gloss, and improve brightness.
3. Details of the mold parting line removal process for rubber O-ring seals
Process steps （1） Rough finishing to remove parting line （2） Fine polishing （3） Drying
Machine and equipment centrifugal disc finishing machine tumbling barrel finishing machine vibratory dryer
Amplitude and speed full speed slow speed full speed
Tumbling media spherical heavy cutting ceramic media high-density porcelain media corn cob drying media
Tumbling media to workpiece ratio 4：1 6：1 8：1
Chemical finishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level should not exceed the abrasive appropriate amount, the liquid level should not exceed the abrasive no
Finishing time 30 minutes 12 hours 30 minutes
Remark parts separated and picked up automatically, rinsing with water parts separated and picked up automatically, rinsing with water dry the water and wipe away the water stains
4. Effect after finishing and polishing
The polishing effect of rubber, silicone, fluorine rubber, nitrile rubber, and Teflon O-ring seals after removing the parting line
The finishing effect of rubber, silicone, fluorine rubber, nitrile rubber, and Teflon O-ring seals after removing the parting line

5. Additional information
  • Because the rubber material is soft, elastic and tough, heavy cutting force spherical ceramic deburring media is used to roughly finish the parting line. If you use ceramic media with sharp angles, such as triangular brown corundum deburring media, they may scratch the rubber surface, causing scratches, pitting and other problems on the product surface.
  • To achieve brightness on the rubber surface after rough finishing, it is necessary to use ceramic media with high density and no cutting force to achieve the polishing effect. It also requires slow work and fine work, so a barrel-type finishing machine is used.
  • Rubber will age again easily when exposed to water and air. Therefore, we need to dry the water immediately after polishing.

6. Final summary
  • In this case, we demonstrate a process of using spherical ceramic deburring media and high-density porcelain polishing media to remove the parting line from the rubber O-ring surface.
  • This process is also suitable for parting lines removing and polishing of injection molded parts, 3D printed parts, souvenirs, craft gifts and other products produced from silicone, fluorine rubber, nitrile rubber, Teflon and other materials.

The descaling, polishing, brightening process of motorcycle pedal starter lever

How to polish the motorcycle pedal starter lever?

In this case, we will discuss the finishing and polishing process of descaling and deburring from a high-hardness forged iron motorcycle starter rod.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

motorcycle parts, starter levers, starter rod, deburring, descaling, polishing, brightening effect

1. Motorcycle starter lever before polishing
motorcycle parts, starter levers, starter rod, deburring, descaling, polishing, brightening before

Material:

Pig iron forgings

Apparance:

oxide scales and burrs

Shape:

S-shaped curve

Size:

300*7mm

Pre-polishing process:

Pig iron forging.

Post polishing process:

Finished or electroplated.

2. Requirements for finishing and polishing
  • The surface is smooth and burr-free.
  • Remove surface oxide scale.
  • Reduce surface roughness, increase gloss, and improve brightness.
3. Details of the finishing, polishing, deburring and descaling process for motorcycle parts (starter lever, starter rod, spark lever)
Process steps （1） Coarse finishing to remove burrs and scale （2） Fine polishing （3） Drying
Machine and Equipment Vibratory bowl Finishing Machine Vibratory bowl Finishing Machine Vibratory Dryer
Amplitude and speed highest and full speed highest and full speed highest and full speed
Tumbling Media angle cut cylinder ceramic deburring media ballcone stainless steel media corn cob polishing media
Abrasive to workpiece ratio 6：1 6：1 8：1
Finishing compound finishing liquid polishing liquid No
Water Appropriate amount, the liquid level should not exceed the tumbling media Appropriate amount, the liquid level should not exceed the tumbling media No
Finishing time 4 hours 30 minutes 30 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water dry the water and wipe away the water stains
4. Effect after finishing and polishing
Rough deburring and descaling of motorcycle parts, starter levers, starter rod

deburring and descaling of forging motorcycle starter lever

Fine polishing and brightening of motorcycle parts, starter levers, starter rod

polishing and brightening of forging motorcycle starter lever

5. Additional information
  • Because the motorcycle starter lever accessories are made of pig iron forgings and the material is very hard, ceramic media with heavy cutting force is used to roughly remove scale and burrs. In order to fully finish the corners of the parts or the toothed inner wall of the inner ring, the shape of the ceramic media is a chamfered cylindrical tumbling deburring media, and the smooth curve of the cylinder itself can have a smooth surface on the starting rod. Smoother polishing effect. It should be noted that if the starting rod is made of aluminum forgings, then our tumbling finishing media cannot use ceramic media, but needs to use softer materialResin media (also called plastic media).
  • These motorcycle parts are not afraid of hitting each other, so in order to improve the screening efficiency, the finishing machine uses the vibrating bowl finisher with separator.
  • Iron workpieces are easily oxidized again when exposed to water and air. Therefore, we need to dry the water immediately after finishing and polishing.

6. Final summary
  • In this case, we demonstrate the process of deburring and descaling on the surface of a forged motorcycle workpiece, also called a starter lever, starter rod, and spark lever, and further improving the surface gloss and brightness.
  • This process is also suitable for polishing parts and components such as automobiles, bicycles, fishing gear, pumps and valves, sewing machines, equipment and tooling produced from forged iron.

How to deburr, descale, polish laser cutting workpieces?

How to remove burrs, flash, scale, chamfer, oil and dirt on laser cut parts? ShineTec is your reliable service manufacturer.
The mass finishing and polishing machines, equipments and tumbling abrasive media we produce can well meet the surface finishing treatment requirements of special-shaped laser cutting workpieces, water jet cutting parts, plasma cutting parts, and flame cutting parts. Depending on your actual production capacity and operating environment, we can help you achieve the best product finishing and polishing process. No burrs, No flash on parts. Efficient equipment and high-quality finishing abrasive media ensure the final surface quality of your products.

Deburring, deflashing and polishing of carbon steel and alloy steel laser cutting parts

Deburring, deflashing of carbon steel and alloy steel laser cutting parts

For parts such as stainless steel and high carbon steel, Ceramic Deburring Media with heavy cutting force are generally used, and a vibrating finishing and polishing machine is used with chemical finishing compound to achieve high finishing efficiency, strong processing capabilities, and a lower surface roughness.

Deburring, deflashing and polishing of aluminum-magnesium alloy laser cutting parts

Deburring,deflashing of aluminum-magnesium alloy laser cutting parts

Because the product material is relatively soft, high-density, color-contaminated Ceramic Deburring Media are not suitable for polishing this aluminum-magnesium alloy product. The best tumbling media is Resin Media, also called Plastic Media, Polyester Media.

Deburring, deflashing and polishing of brass and copper laser cutting parts

Deburring, deflashing of brass and copper laser cutting parts

Also because the product has a soft texture, resin tumbling media are also needed to deburr and deflash. After finishing and polishing, the surface color of the product can maintain its original color, and no contamination by ceramic tumbling media will occur.

Deburring, deflashing and polishing of stainless steel plate laser cutting parts

Deburring, deflashing of stainless steel plate laser cutting parts

Laser cutting workpieces made of thin steel plates and galvanized sheets also need to use high-cutting ceramic deburring media, with a vibratory finishing and polishing machine with Finishing Liquid Compound. If the workpieces stick to each other, Chemical Compound need to be added to prevent sticking.

Sheet metal laser cutting parts deburring deflashing and polishing

Deburring, deflashing of sheet metal laser cutting parts

Using a ceramic media such as a triangle with sharp corners or a beveled cylinder, you can deburr and polish deep into the corners, inner holes, gaps and other parts of the workpiece.

Deburring, deflashing and polishing of plastic and acrylic laser cutting parts

Deburring, deflashing of plastic and acrylic laser cutting parts

Laser cutting workpieces made of plastic or acrylic are suitable for polishing with high density porcelain tumbling media. This tumbling media does not contain abrasive sand, has no cutting force, and will not scratch the surface of the product.

  • 1. What are laser cut parts?
  • Laser cutting parts are workpieces produced using laser cutting processing technology. It is used in spare parts for products with high precision requirements in various industrial fields.
  • 2. Why do laser cut parts need to be deburred?
  • Laser-cut parts produced during processing must undergo surface treatment processes such as deburring and polishing.
    The benefits of applying this finishing process are as follows:

    2.1 Remove oxide layer.
    Laser cutting uses gases such as oxygen or carbon dioxide as assistance. These gases will form an oxide layer on the surface of the product during high-temperature cutting. It may corrode or rust the parts, so you must polish these cutting parts to remove the oxide layer.

    2.2 Improve product appearance quality.
    The appearance of a product affects its quality. If you are a practitioner of machined parts, using the deburring and finishing process can provide a beautiful and uniform appearance to the workpiece.

    2.3 Repair product surface quality.
    The laser cutting process may cause certain appearance defects to the workpiece, such as silk lines, cracks, pitting, etc. Through finishing and polishing, these defects can be repaired, thereby improving product yield and reducing production costs.

    2.4 Chamfer processing.
    Laser cutting will produce sharp edges or corners, which may cause harm to users during use.
    After chamfering, sharp edges can be removed and sharp corners can be smoothed and rounded. It can also reduce product stress, which affects product durability and quality stability.

    2.5 Produces a special matte effect.
    Some products may require a matte finish. This demand can be met by using appropriate tumbling abrasive media and correct finishing and polishing processes.

    2.6 Improve security.
    Flashes, sharp edges, and sharp corners on the surface of the workpiece may cause harm to the user. Therefore, it is necessary to use a deburring and finishing machine for polishing in the subsequent process to improve the surface quality of the product.
  • 3. Can you explain the method of deburring from laser cutting workpieces?
  • Currently, many laser-cut parts are still polished manually. For example, traditional deburring methods such as sandpaper, power tools with grinding heads, belt sanders, and grinding wheels are used.
    These backward polishing methods are inefficient, not environmentally friendly, and also bring many safety hazards.
    Some new deburring processes include ultrasonic, thermal energy, electrochemical, sandblasting, shot blasting and other methods. Each has its own characteristics and limitations.
    The tumbling finishing and polishing process we currently provide is a low-cost, high-volume, and high-efficiency mechanized deburring and polishing method, which is especially suitable for some special-shaped laser cutting parts with complex cavities.
  • 4. What kind of equipment is the laser cutting workpiece deburring machine?
  • Laser cutting parts polishing machine is a machine used to deburr, descale, chamfer, clean, degrease, and polish and brighten laser cut products. Using the right tumbling abrasive media and choosing the right machine type will make your process more efficient. At the same time, it can also reduce labor costs, reduce labor intensity, and improve production efficiency.
  • 5. What are the advantages of laser cutting parts finishing and polishing machines?
  • The benefits of laser cutting parts deburring and polishing machines are as follows:

    5.1 Lower processing costs. Manual deburring requires high labor costs, more tools and abrasive material losses. Our finishing and polishing machine for laser cutting is a one-time investment. Later, you only need to purchase some tumbling media, chemical compound liquid regularly. Only very little manual participation is required during the processing, so labor costs will be greatly reduced.

    5.2 Save time. It is obvious that machine deburring and polishing can greatly save operating time compared to manual polishing. Your productivity can be greatly improved.

    5.3 Non-destructive surface treatment. Use suitable matching tumbling finishing media and choose the correct mass finishing equipment. After completing the polishing processes such as deburring and descaling, your product workpiece will not change in shape, position and size. It is a lossless process. If it is polished by hand, due to the different handling strength of each workpiece, it may have an impact on the size of the product, and each one is not uniform.

    5.4 Get the best surface quality. The quality of product appearance determines the quality of the product. Manual polishing cannot achieve a consistently stable product surface quality. But a polishing machine can give you a consistent look. Finishing time and surface roughness level can be controlled, helping you to stand out in the fierce market competition.

    5.5 Save labor. At present, the labor cost of product polishing process accounts for a large proportion of the overall product cost. ShineTec’s finishing and polishing machine allows a single worker to perform multiple batches of mechanized deburring, descaling and polishing, which will save a lot of labor costs and greatly reduce labor intensity.

    5.6 High-volume polishing. Our finishing and polishing solutions are characterized by high-volume, high-efficiency, mechanized automatic finishing. Laser cutting parts of different shapes and sizes can be processed in the same polishing machine. If combined with automated assembly lines, your production efficiency and product quality can be greatly improved.

    5.7 Extremely low maintenance costs. The daily maintenance cost of the machine and the loss of tumbling media are the most important factors for business owners to consider. ShineTec’s finishing and polishing machines have almost no maintenance costs. In addition to regularly adding a little lubricant to the motor, there are no other special tools that need to be purchased.

    5.8 No specially trained operators are required. Manual finishing and polishing requires special training for operators first. This is a high labor cost and an uncontrollable link in the production process. The mass finishing machines we provide are very simple to operate. Workers only need to load and unload materials. The polishing process of the machine does not require manual participation.

    5.9 Safe production environment. Laser-cut parts may have sharp corners, burrs or flash edges, which may cause harm to front-line workers. Debris generated during manual polishing may also enter people’s eyes or cause skin allergic reactions. Using finishing and polishing machines can avoid these phenomena. Provide production workers with a safe and reliable production working environment.

    5.10 Improve the adhesion of electroplating, paint and coatings. Some laser-cut parts may require electroplating, painting or coating treatment in the final stage. If polished by hand, the appearance of the product will be inconsistent, resulting in unstable surface quality of the finished product. After using our tumbling finishing and polishing, there will be a uniform surface quality before subsequent surface treatment, and a reliable and stable product quality will be obtained later.
  • 6. What types of laser cutting parts deburring machines does ShineTec have?
  • ShineTec provides different tumbling finishing and polishing machines that can be used to polish laser cut parts. They are vibratory/vibrating deburring and finishing machines, centrifugal barrel finishing machines, centrifugal disc finishing machines, and barrel tumbling finishing machines. Depending on the material, shape, specification and size of the workpiece, we can select the correct machine model and matching ceramic deburring media, porcelain polishing media and other tumbling media to meet your process requirements.

    6.1 Vibratory Finishing Machine. Vibration type, also called vibrating finishing and polishing machine, is the most commonly used equipment for deburring and polishing laser cutting parts. It is characterized by strong applicability, large processing capacity, easy operation, convenient loading and unloading, and controllable process. Generally, small and medium-sized special-shaped workpieces can be processed. The disadvantage is that it is not easy to penetrate deep into the cavity.

    6.2 Centrifugal Barrel Finishing Machine。 The centrifugal barrel finishing type, is a device suitable for finishing and polishing some small-sized laser cutting workpieces. It is characterized by strong cutting force, short processing time, and the ability to penetrate deep into the inner holes and gaps of the workpiece. The disadvantage is that the processing capacity is not large at one time, and loading and unloading is time-consuming.

    6.3 Centrfugal Disc Finishing Machine。 The centrifugal disc finishing machine is suitable for processing some laser cutting workpiece products with large burrs. It is characterized by the strongest cutting force, short processing time and easy loading and unloading. Generally speaking, compared with vibratory polishing machines, the finishing and polishing efficiency can be increased by about 30 times. The disadvantage is that it is not suitable for some thin laser cutting parts and is easy to deform or get stuck in the gaps of the machine chassis.

    6.4 Tumbling Barrel Finishing Machine. Also called rotary barrel polishing machine. It is suitable for parts with high surface polishing brightness and gloss requirements. It is characterized by slow work and careful work, combined with special abrasive media, such as walnut shells, corn cobs, wood, bamboo chips and other plant abrasives, and polishing paste, which can bring a mirror-like shiny surface effect. The disadvantage is that the processing time is slow and the efficiency is low. Some parts may need to be processed for several days at a time. It is also not suitable for some easily deformed laser cutting workpieces.
  • 7. What deburring abrasive media are used in laser cutting parts deburring machines?
  • The tumbling media used for finishing and polishing laser cutting parts are also called mass finishing media. ShineTec offers a wide range of abrasive media. The factors that affect the quality of abrasives mainly include cutting force, wear resistance, specific gravity density, hardness, appearance size, color and other indicators. High-quality raw materials and scientific production process control bring high-quality abrasive media. The main types are as follows:

    7.1 Brown Corundum Ceramic Deburring Media. Brown corundum ceramic media is a commonly used abrasive material used for deburring, descaling, deflashing and finishing of laser cutting parts. Suitable for hard metal parts. The deburring ceramic media provided by ShineTec are available in triangular, cylindrical, spherical, conical, three-star, oval, pyramid, tetrahedral and other shapes. Each shape has different specifications and sizes. Each abrasive media also has different cutting force levels. Heavy cutting force deburring media are used for workpieces that require a lot of finishing and cutting force, and light cutting force deburring media are used for some product workpieces that require a lot of smoothness.

    7.2 High Alumina Porcelain Media. High-alumina porcelain media do not contain brown corundum sand with strong cutting force. Therefore, this tumbling polishing media has no cutting force and cannot be used for deburring, descaling and other processing. Because of the high alumina content, the polishing abrasive media formed after final sintering has a large specific gravity, dense internal structure, and strong hardness. It is suitable for polishing processes that improve the surface brightness of laser cutting workpieces. The greater the specific density, the higher the surface brightness of the treated product. The appearance color is porcelain white, and the shapes are generally spherical, triangular, cylindrical, oval, etc.

    7.3 Resin Media。 Tumbling resin media are also called Plastic Media, Polyester Media. Because they have a moderately elastic surface, they are suitable for polishing and polishing laser cutting parts produced from soft metals such as aluminum alloys. Resin grinding stone is an abrasive material made of resin mixed with corundum sand powder through a curing reaction. It is also suitable for deburring and polishing workpieces made of materials such as copper and plastic. ShineTec can provide resin abrasives in conical, pyramid, triangular, three-star, bullet and other shapes. Brown corundum sand containing different mesh numbers can bring different cutting forces, and can also be divided into heavy cutting, medium cutting, and light cutting grades.

    7.4 Stainless Steel Media。 This polishing media is made of stainless steel. Because it has no cutting force and a density of up to 7.8 g/cm3, it is also used to polish the surface brightness of laser-cut parts. The specific gravity is more than three times higher than that of high-alumina porcelain polishing media, and the surface brightness obtained after polishing is also far superior to that of high-alumina porcelain polishing media. The shapes include ball, ballcone (ufo), and pin shapes, which are suitable for brightening metal workpieces.

    7.5 Mirror Polishing Media. It is mainly produced by processing walnut shells, corn cobs, cork pellets, bamboo chips, etc. In addition to their finishing and polishing functions, walnut shells and corncobs are also used to dry cleaned workpieces in a vibration dryer because of their strong water absorption. Vegetable tumbling media are mainly used to polish the surface brightness of laser cutting parts. When used in conjunction with a barrel tumbling polishing machine, a mirror-like bright effect can be achieved.
  • 8. Which products’ laser-cut parts can be used with this tumbling finishing deburring and polishing machine?
  • The laser cutting parts polishing machine provided by ShineTec can handle workpieces made of the following materials:

    8.1 Stainless steel laser cutting parts. This is the most commonly used workpiece material. Used in healthcare, automotive parts, electronics, machinery and other industries.

    8.2 Aluminum alloy laser cutting parts. For example, the framework of digital products.

    8.3 Laser cutting parts in copper. Brass is easily oxidized in the air and turns black. Its original appearance can be restored by polishing and brightening.

    8.4 Plastic laser cutting parts. Used in medicine, automobile, aviation, electronics and other industries.

    8.5 Thin sheet laser cutting parts. It is easy to form sharp edges after laser cutting, which also require polishing and rounding.

    8.6 Bending laser cutting parts. Triangle tumbling media are very suitable for deburring and polishing products.

    8.7 Acrylic laser cutting pieces. Used in construction, advertising, machinery and other industries.

    8.8 Carbon fiber laser cutting parts. Most carbon fiber products are cut using lasers.

    8.9 Carbon steel laser cutting parts. This product is very versatile.

    8.10 Alloy steel laser cutting parts. Such as chromium alloy, manganese alloy, tungsten alloy, titanium alloy and other components.

Can plasma finishing and polishing achieve a mirror polishing effect?

Plasma polishing has been widely used in fine polishing applications of high-end products, such as furniture and bathroom tableware industry: handles, handles, faucets, copper parts; glasses industry: glasses frames, glasses frames; aerospace manufacturing: aircraft engine blades; medical device manufacturing Industry: titanium alloy, stainless steel equipment and other fields.

1. What is plasma polishing?

Plasma polishing, also known as nano-polishing, is a new finishing and polishing process for deburring, descaling, and improving brightness on the surface of metal product workpieces. In essence, it is also electrolytic polishing. Under the action of large current, the electrolyte is vaporized and high-energy plasma is generated to impact the surface of the product to achieve a polishing effect. It is suitable for large quantities of special-shaped workpieces with complex curved surfaces to quickly and efficiently achieve a near-mirror polishing effect. So what kind of surface polishing effect can plasma polishing achieve? Today we will share a case in which deep-drawn stamping parts made of 304 stainless steel were treated with plasma polishing to remove burrs and oxide scale to achieve mirror polishing. Take a look at the specific advantages and disadvantages of this process and whether it can meet your finishing and polishing needs.
Let’s take a look at the comparison of the effects of plasma polishing on this stainless steel stamping part:

Surface effect of stainless steel deep-drawn stamping parts before plasma polishing

Surface effect of stainless steel stamping parts before plasma polishing(nano-polishing)

We can see that the surface of the original surface of this workpiece has lines left after cold rolling, and there are obvious stretch marks left after stretching on the edges. The upper opening has obvious burrs left after punching and cutting. It feels prickly and can cut your skin if you’re not careful.

Surface effect of stainless steel deep-drawn stamping parts after plasma polishing

Surface effect of stainless steel stamping parts after plasma polishing(nano-polishing)

Now the surface of the product is shiny, and the oxide scale on the internal and external surfaces has been removed. The original cold rolling marks are almost invisible when viewed from the front. The stretch marks on the edges have also become much reduced. The upper opening feels better to the touch. It should be smooth, no tingling feeling, and the burrs should have been removed.

2. Scope of application of plasma polishing

Now we fix the stainless steel deep drawing stamping part on the hanger and put it into the plasma polisher. After waiting for 2 minutes, you can see that its surface is now shiny and the original oxide layer has been completely removed. We Let’s take a look at the overall surface condition. The cold-rolled marks on the surface of the original part before polishing is still quite obvious. Look at the stretch marks on the edge. You can still see the obvious stretch lines. Let’s touch the cut part at the opening, the hand feels relatively rounded, does not irritate the hand, and the burrs have been removed. The internal and external surfaces of the entire product have uniform polishing quality and high brightness. It should be said that it is quite beautiful. Let’s sum it up. If your products are small pieces with relatively small burrs, smooth original surfaces condition, complex shapes, and large quantities, then plasma polishing can meet your needs and achieve a mirror polishing effect. If you want to remove larger burrs, flashes, scratches, and thicker oxide layers through plasma polishing, then plasma polishing cannot meet your requirements. Friends, do you now understand the characteristics of plasma polishing?

Finishing process method for deburring, deflashing, trimming from plastic rubber silicone and nylon product parts

How to remove burrs,flash and finish plastic, rubber, silicone and nylon product parts?

During the injection molding process of rubber, plastic, silicone and nylon products, due to mold, process or raw material reasons, a large number of burrs and flash often occur on the edge of the product or in the inner hole. The existence of this burr phenomenon will have a negative impact on the surface quality of the product. The commonly used and simple method of deburring and trimming is to use a scraper for manual processing. Of course, this is only suitable for a small number of products. If large quantities of automated mechanical processing are required, since rubber, plastic, silicone, and nylon products are soft and tough, Conventional vibration/barrel finishing, electrolysis, plasma, and magnetic processes cannot achieve satisfactory results. Today we will share a case of how to deburr, deflash from rubber shin guard products to achieve high-efficiency trimming in large quantities. This finishing process is also suitable for trimming requirements of other plastic, polyester, silicone, nylon, aluminum alloy, zinc alloy and other product parts with soft, light and hard-to-break burrs such as mobile phone cases, watch bands, O-rings and other plastics.

    • jerrylu
    • 2024-05-21
    • 0 Comments

     

Process method for deburring and deflashing on shin guards of rubber plastic products

1. The state of the rubber shin guards before deburring
How to deburr and deflash from rubber shin pad

Materials：

Eucommia rubber

Appearance:

Long burrs, rough edge

Shape：

Special shape

Size：

150*120 MM

Process before trimming：

Injection molding

Process after trimming：

Forming

2. Deburring and deflashing requirements
  • Batch deburring, deflashing, trimming
3. Detailed process of deburring and deflashing from rubber shin guards：
Process Steps （1） freeze deburring and deflashing
Mahines and Equipments deburring machine for plastic rubber products
Amplitude and Speed high speed
Finishing Abrasive Media plastic elastic sand
Ratio of abrasive to workpiece 4：1
Compound Liquid none
Water none
Process Time 10 minutes
4. Effect comparison of rubber shin pad after removing burrs
How to debur and deflash from rubber and plastic shin guards
Rubber plastic shin guards frozen deburring deflashing effect

5. Additional instructions
  • Due to process limitations, rubber, aluminum alloy, zinc alloy and other products made by injection molding, casting and other processes often have a long layer of burrs around them after molding. This kind of burr is very thin, easy to bend, and has a certain degree of toughness, so simple mechanical and physical removal methods are not effective. Nowadays, a special deburring and trimming machine for rubber and plastic products is used to place the workpieces in batches into a special barrel and roll them. During the processing, liquid nitrogen is added to reduce the surface of the workpieces to more than 100 degrees below zero in a short time, making the edges of the workpieces The burrs and flash will become brittle and broken, but the body of the workpiece will not be affected. While the workpiece is rolling, it is supplemented by high-speed moving plastic elastic sand abrasives that impact the surface of the product, which can accelerate the removal of burrs and rough edge on the edges of the product or inside the holes to improve the surface effect.
  • Another thing to note is that in order to test different processes, we divided the sample into four small pieces and finally determined the optimal deburring plan.

6. Final summary
  • In this case, we demonstrate an automated finishing and trimming process that uses a freezing process to remove burrs and flash from the outer surface and internal holes of rubber shin guards.
  • If you have problems with deburring, deflashing and trimming aluminum alloy, zinc alloy, rubber, nylon, silicone, plastic product parts or the following products using casting, injection molding and other processes and need professional technical support, you can refer to the above cases:
    How to deburr plastic
    Quickly remove burrs from plastic products
    Solution to burrs in injection molded parts
    How to remove plastic burrs and flash edges
    Deburring methods for plastic products
    How to quickly deal with plastic flash
    How to deal with plastic flash
    How to solve the problem of burrs on plastic products
    Deburring plastic products
    Tips for deburring plastic parts
    Rubber deburring process
    Advanced methods for rubber deburring
    How to quickly remove burrs from rubber products
    Rubber deburring equipment
    How to remove burrs from silicone
    Treatment method for silicone burrs

How to polish the surface of engine connecting rod parts?

Do auto parts, engine parts, engine piston connecting rods need to be polished? The answer is yes. Engine connecting rods on the market are made of various materials, including titanium alloy, stainless steel, cast iron, forged iron, aluminum alloy or zinc alloy. During the machining process, quality problems such as burrs, flash, cracks, tool lines, rust, and scale will inevitably occur on the surface. In order to improve the surface quality and service life of connecting rods, ShineTec does our best to provide you with the best deburring, descaling, finishing and polishing processes, methods, collections and solutions for your products. The special finishing and polishing machines, equipment and tools produced by us can solve various problems you encounter in connecting rod polishing, which can be called the connecting rods polisher.

Finishing and polishing of titanium alloy engine piston and connecting rod accessories

Finishing and polishing of titanium alloy engine connecting rod parts

Titanium alloy connecting rods are used in the engines of many sports vehicles due to their high strength and excellent performance. Light weight but high durability are the outstanding advantages of titanium connecting rods.
This kind of engine parts generally uses a vibrating finishing and polishing machine to perform polishing processes such as deburring, descaling, deflashing, chamfering, and brightening. The main polishing process is divided into two processes: rough finishing and fine finishing.
Rough finishing uses high cutting strength ceramic tumbling media combined with chemical finishing liquid, and fine finishing uses high density stainless steel media combined with acidic chemical polishing liquid to improve the surface brightness of the product.

Finishing and polishing of cast iron engine piston and connecting rod accessories

Finishing and polishing of cast iron engine connecting rod parts

Engine connecting rods made of cast iron are weaker than those made of stainless steel. Generally, low carbon steel is used for production. The main advantage of this product is the low material cost.
A Vibratory Finishing Machines is also used for rough finishing and fine polishing. For coarse finishing, ceramic tumbling media and finishing liquid are used to remove burrs, oxide scales, and flash edges. For fine polishing, stainless steel polishing media and acidic polishing liquid are used to brighten the surface.

Machined engine piston connecting rod accessories finishing and polishing

Finishing and polishing of machined engine piston connecting rod parts

Machined connecting rods can be made from different materials of metal or alloys. This kind of connecting rod will bear high pressure in the engine, so good finishing and polishing of the product surface can repair some surface defects such as cracks, pits, burrs, flashes, etc. to ensure that the connecting rod will not break under pressure.
A vibratory polishing machine can be used for polishing. If the volume and quantity of workpieces are small, a Centrifugal Barrel Finishing Machine can also be used. Different metal or alloy materials require different finishing and polishing abrasive media.

Finishing and polishing of forged engine piston connecting rod accessories

Finishing and polishing of forged engine piston connecting rod parts

Forged connecting rods are stronger than cast iron connecting rods. The surface of the forged connecting rod is definitely rough and not smooth, so the finishing process of deburring and descaling is necessary.
Universal vibratory finishing and polishing machines can be used for surface finishing and polishing. If you pursue short time and high efficiency, you can also use a centrifugal barrel finishing machine. It’s just that the purchase cost of the machine is higher than that of the vibration machine.
The abrasive media need to be matched according to the material and the shape and size of the workpiece.

Aluminum alloy or zinc alloy engine piston connecting rod accessories finishing and polishing

Finishing and polishing of aluminum alloy engine piston connecting rod parts

There are many benefits to using aluminum alloy or zinc alloy connecting rods compared to cast or forged connecting rods. Although its strength is not as strong as connecting rods made of other materials, this connecting rod can improve shock absorption performance and help reduce stress damage to the engine crankshaft.
Vibrating finishing machines or centrifugal barrel finishing machines can be used to debur, descale and deflash. Tumbling media, there is no doubt that Resin Media（Polyester/Plastic Media）must be used，For polishing brightness, Porcelain Media, High Density Porcelain Media, orStainless Steel Media can be used.

Finishing and polishing of supercharged engine piston and connecting rod accessories

Finishing and polishing of supercharged engine piston connecting rod parts

This type of connecting rod needs to have strong fatigue resistance. Can be produced in different metals or alloys.
A slight defect on the surface of the product may lead to substandard quality, so finishing and polishing is a necessary process. We also recommend using a vibratory finishing and polishing machine.

  • 1. What part of the engine is the connecting rod?
  • The piston connecting rod belongs to the category of automotive parts and is an essential accessory for an engine. It is installed between the piston and the engine crankshaft. Also called connecting rod assembly. It is responsible for converting the linear motion of the piston into the rotational motion of the crankshaft.
  • 2. What is the function of finishing and polishing engine connecting rods?
  • Polishing your engine connecting rods has many benefits:

    2.1 Fine finishing and beautiful surface.
    The correct polishing process can give the connecting rod a beautiful surface treatment.

    2.2 Improves the durability of connecting rods.
    Finishing and polishing can remove burrs and scale from the surface of the connecting rod, which are key quality defects that affect the life of the connecting rod. Therefore, removing these imperfect surface defects through finishing and polishing methods can greatly improve the durability of the connecting rod.
  • 3. Can you explain how traditional engine connecting rods are polished?
  • The traditional way of polishing connecting rods is manual. It requires a lot of labor and is an annoying process.
    They all use a polishing wheel. Polishing heads of different sizes can be installed on this polishing wheel. According to the different connecting rods, different polishing heads can be replaced for operation. It is also necessary to use polishing paste to speed up the polishing process and make the surface of the connecting rod shiny.
  • 4. How is ShineTec’s engine connecting rod polishing machine polished?
  • Generally speaking, it is divided into two processes. The first is rough finishing, deburring and descaling. Just put your connecting rod blank and tumbling abrasive media into the machine, and then add an appropriate amount of finishing liquid and clean water. After the rough finishing process is completed, the connecting rod can be taken out and transferred to the fine polishing process, which uses polishing to improve the gloss and brightness of the product surface. Just put the connecting rod and the porcelain abrasive media for fine polishing into the machine, add an appropriate amount of polishing chemical liquid and water, and start the machine. The entire polishing process is fully automatic, and you can get a shiny finished connecting rod after the polishing is completed.
  • 5. What are the benefits of using ShineTec’s finishing and polishing machine to polish engine connecting rods?
  • The benefits are many:

    5.1 Excellent surface quality. The traditional manual polishing method depends on the skills and skilled procedures mastered by the workers. The finished products polished by each worker will result in different surface polishing quality, and it is difficult to achieve consistent surface quality of the finished products.
    Polishing with our ShineTec finishing machines can avoid these problems and achieve consistent surface polishing quality.

    5.2 Save man-hours. Polishing each piece by hand requires many man-hours. A worker can only handle one piece of connecting rod at a time. Using ShineTec’s engine connecting rod deburring and descaling solutions, large batches can be processed fully automatically at one time. The operating hours are greatly reduced.

    5.3 low cost. Finishing and polishing mainly consist of two costs. One is the purchase cost of machinery and equipment, and the other is the labor cost of polishing. Manual polishing requires a large number of workers, but using our ShineTec professional finishing machine to polish large quantities of connecting rods only requires one operator. The one-time setup cost of the equipment will be higher than manual polishing tools such as polishing wheels, but it can be used for a long time. The tumbling ceramic media can generally be used for several months or even years after purchase. They are not more expensive than grinding wheels and polishing heads. The key is This saves a lot of labor costs, and overall, the cost of polishing will be greatly reduced.

    5.4 No specially trained polishing operators are required. Hand polishing requires extensive training of operators upfront. Using our mechanized high-volume automated finishing and polishing solutions is simple and requires no dedicated employee training.

    5.5 Not a labor-intensive polishing process. Traditional manual polishing is a typical labor-intensive process and requires a lot of labor. The polishing process of engine piston and connecting rod parts provided by ShineTec is completely mechanized. Only one worker is required to control the machine’s switch, which greatly reduces the use of labor.

    5.6 Non-destructive surface polishing process. The quality of hand polishing depends on the skill of the polisher. Because manpower is uncontrollable, sometimes the polishing process may inevitably cause damage to the product surface. Using ShineTec’s finishing and polishing process, as long as the correct process flow and tumbling ceramic media are determined through process samples in the early stage, the final product of the engine connecting rod will have a uniform surface quality.

    5.7 Extremely low maintenance costs.
    When determining the polishing process for engine connecting rod accessories, routine maintenance costs are also an important factor that should be considered. ShineTec’s deburring and polishing machines are easy to use and operate and do not require additional special tools or trained operators. Therefore, daily maintenance costs are extremely low.

    5.8 Large batch processing. ShineTec’s engine connecting rod polishing machine has the capability of mechanized processing of large batches at one time. It can not only polish the same products in batches, but also deburr and polish connecting rods with different shapes and sizes in the same batch. It can be called an engine connecting rod polisher.
  • 6. Can you explain the differences between polishing by different finishing machines?
  • ShineTec’s finishing and polishing machines mainly have three common types that can be used for professional polishing of engine connecting rods. It can meet the needs of deburring, descaling, degreasing, deflashing, polishing and brightening.

    6.1 Vibratory Finishing Machine。 The vibrating finishing machine is the most commonly used machine for polishing engine connecting rod parts. This model is the easiest to use and operate. The high-strength and elastomer PU lining of the working chamber can protect the connecting rod and tumbling ceramic media from hitting and cutting the inner wall iron plate. It is the most cost-effective and economical engine connecting rod polishing process solution. It can feed large quantities of connecting rods at one time and is suitable for polishing small and medium-sized engine connecting rods.

    6.2 Rectangular Tub Finishing Machine。 Vibratory rectangular tub polishers can be used to polish long wishbones and crossmember links. The rectangular working chamber can be divided into several independent spaces with partitions, so that each connecting rod can be polished in a separate space without collision damage.

    6.3 Centrifugal Barrel Finishing Machine. The centrifugal barrel finisher relies on centrifugal force to drive the working barrel for polishing. It is mainly used to clean and polish connecting rods during the fine polishing stage. The polishing efficiency of this model is very high, and it can produce a mirror-like polishing effect on the surface of the connecting rod within half an hour. Centrifugal barrel finishing machines are divided into two types according to different loading and unloading methods. One is that the barrel has a relatively large capacity and cannot be removed. There is a sealing cover on the barrel, and loading and unloading tumbling media go directly through the opening of the barrel. The other is that the working barrel has a small capacity and can be taken out of the machine. The loading and unloading tumbling media are in the machine. Performed externally, suitable for smaller sized connecting rod polishing.
  • 7. Are there any differences in finishing and polishing between the different abrasive media provided by ShineTec?
  • The abrasive media used to remove burrs, scale and flash from engine connecting rods are also called ceramic tumbling media or polishing media. Each abrasive media corresponds to a different polishing process. Ceramic deburring media are generally used for deburring, deflashing, and descaling. Stainless steel media or polishing porcelain media and high-density porcelain media are generally used to improve brightness. For different shapes and sizes of connecting rods, each tumbling media has different shapes and sizes to choose from.

    7.1 Ceramic Deburring Media. Deburring media is made by mixing brown corundum sand with cutting force with clay, alumina powder, etc., and then sintering it in a high-temperature kiln after shaping. According to the different particle sizes of brown corundum sand, it is divided into heavy cutting, medium cutting and light cutting types, which are suitable for different materials. To measure the quality of a deburring media, there are several indicators such as cutting force, wear resistance, dimensional consistency, hardness, and color difference. The ceramic media produced by ShineTec all use the best first-grade brown corundum new sand, clay raw materials from major manufacturers in the industry, strict molding production processes, and proper sintering temperature control. The above indicators of the tumbling ceramic media are all Ahead of domestic peers. Especially in the key indicator of wear resistance, it is far ahead of competing products. The use time can be extended by 2-3 times, which can save a lot of consumable costs for the manufacturers.

    7.2 Resin Media. Also called plastic media, polyester media, it is obtained by mixing brown corundum sand with resin and curing it. There are also three different finishing levels, heavy cutting, medium cutting, and light cutting. Commonly used shapes include cone, triangle, tetrahedron, and bullet shape. This kind of tumbling finishing media is suitable for polishing soft parts made of aluminum alloy, zinc alloy, copper and other materials.

    7.3 Porcelain Media. This kind of tumbling abrasive media is mainly made of sintered kaolin and alumina powder. It does not contain brown corundum sand and has no cutting force. Therefore, it is mainly used to polish the surface brightness. That is the last fine finishing and polishing process. The quality of the product is mainly determined by the alumina powder content, which ranges from 30% to 70%. The higher the content, the greater the density and specific gravity, and the higher the gloss and brightness of the polished product surface. Of course, sintering temperature is also a key factor affecting quality. Like brown corundum abrasives, tumbling porcelain media have various shapes, including sphere, triangle, oblique triangle, right cylinder, oblique cylinder, three-star, oblique three-star, ellipse, etc., and the specifications and sizes also vary widely.

    7.4 Stainless Steel Media. Since the specific density of stainless steel can reach 7.8 grams/cubic centimeter, which is three times that of porcelain media, the surface of the polished product has the highest density and the highest brightness. Suitable for surface polishing of hard metals. Not suitable for soft metal workpieces such as aluminum alloys and copper. This polishing media has virtually no wear and can be used continuously for decades. The stainless steel media shapes include ball, ballcone, ufo, and pins shapes, and the materials include AISI201, AISI304, AISI316, AISI420, and AISI440C, which are suitable for different acidic or perishable environments.

    7.5 Walnut Shells or Corncob Media. Walnut shell or corncob media is a biodegradable vegetable abrasive. It is mainly used for the drying process after polishing the engine connecting rods. This tumbling abrasive media also comes in different sizes depending on the particle size. In addition to absorbing water and drying, it also has the ability to adsorb impurities and dust on the surface of the connecting rod to the abrasive, playing a cleaning role. It is a dust-free cleaning process.
  • 8. Are there any engine connecting rods that can be polished using ShineTec’s polishing machine?
  • ShineTec’s mass finishing machines are suitable for almost all types of engine connecting rods on the market.

    8.1 Titanium alloy connecting rod. Titanium alloy connecting rods are high-end products on the market because of their strength and durability. Its performance is unmatched by other connecting rod products. A vibratory finishing machine can be used for cleaning and polishing.

    8.2 Cast iron connecting rod. Because it is mainly produced from low carbon steel, its strength is lower than that of stainless steel connecting rods. Due to its low production cost, it is the most widely used connecting rod product on the market. Vibratory finishing machines can be used for finishing and polishing.

    8.3 Machined connecting rods. The material can be produced from different metals, depending on the type of engine used. The most suitable machine is a centrifugal barrel finishing machine, which can quickly remove tool lines, burrs, and scale. A vibrating finisher can also be used.

    8.4 Supercharged engine engine connecting rods. Because it is used in high fatigue strength environments, high-strength materials will be used to produce this connecting rod. Generally used in high-horsepower heavy-duty engines. Proper polishing process can repair surface defects and extend the service life of connecting rods. Suitable for polishing using a centrifugal barrel finishing machine.

    8.5 Forged engine connecting rods. Compared with cast iron connecting rods, forged connecting rods have higher durability. The tighter metal crystal structure formed inside the forged parts ensures higher strength of the product. But forged connecting rods have more surface imperfections. Vibratory or centrifugal barrel finishing machines can be used to polish this product.

    8.6 Aluminum alloy connecting rod. Aluminum alloy connecting rods have better shock absorption performance. It can reduce the stress on the engine crankshaft and extend its service life. Because it is a soft metal, the tumbling finishing media used for deburring, descaling must be a resin tumbling media. The mass finishing machine can be a vibratory finishing machine or a centrifugal barrel finishing machine.

What is stainless steel media?

About Stainless Steel Media

  • 1. What is stainless steel media?
  • As the name suggests, stainless steel media are tumbling media made of stainless steel. This is a kind of mass finishng, tumbling polishing, brightening and smoothing abrasive media mainly used in the finishing industry.
    Stainless steel media act on your product parts and workpieces and have the functions of deburring, cleaning, degreasing, brightening, and mirror polishing. Most metal parts can obtain a shiny surface effect after polishing.
    High-quality stainless steel raw materials produce high-quality stainless steel media. They have a long service life and can be used for a long time. They are the best choice for tumbling, mass finishing and polishing processes. At the same time, the impact of stainless steel media can improve the surface strength of product parts and repair surface defects.

  • 2. What are the uses of stainless steel media?
  • Stainless steel media are widely used in the finishing and polishing industry of tumbling, vibrating, mass finishing and polishing. Specific applications are as follows:

    2.1 Deburring. Stainless steel media also have the function of removing burrs. Some small burrs and sharp teeth on the edges of parts and hole walls can be chamfered and flattened by scraping with stainless steel media with sharp corners or edges to achieve the effect of removing burrs.

    2.1 Turning tool marks removing. This process is similar to deburring. The turning tool marks left after the machining of parts can be removed by the impact and scraping of stainless steel media.

    2.2 Polishing. The main function of stainless steel media is to brighten the surface of product workpieces. Through the tumbling and rotating motion of the machine, the high density stainless steel media impacts the surface of the part, changing the metallographic structure of the metal surface layer. The arrangement of the metal grains is reorganized to form a dense layer, which enhances the diffuse reflection of light, making the surface Becomes shiny and sparkling, achieving a near-mirror polished effect.

    2.3 Degreasing. Through the combined use of stainless steel media and cleaning liquid, dust, sludge, and grease on the internal and external surfaces of parts can be removed. Manual cleaning of oil stains is a time-consuming and labor-intensive process. Using a tumbling finishing machine and stainless steel media for cleaning can improve the brightness and gloss of the surface of the parts while removing oil and stains. It is a process that gets twice the result with half the effort.

    stainless steel media polishing effect
  • 3. What types of stainless steel media are there?
  • International Standards 1Cr18Ni9 0Cr19Ni9 0Cr17Ni12Mo2 3Cr13 9Cr18
    China 302 304 316 420 440C
    USA SUS302 SUS304 SUS316 SUS402 SUS440C
    JP X12CrNi188 X5CrNi189 X5CrNiMn18 X30Cr13
    Germany 1.43 1.4301 1.4401 1.4028
  • 4. What shapes do stainless steel media have?
  • Stainless steel media for polishing come in a variety of shapes:

    4.1 Sphere Ball. Stainless steel balls are the most commonly used stainless steel media, also called stainless steel beads. This is a polishing media with uniform size and smooth appearance.

    4.2 Ballcone. Ballcone is also a commonly used stainless steel media, also called stainless steel ufo media, often mixed with stainless steel balls for polishing. Because the rounded edges on the outside can be polished into grooves, seams, dead corners and other parts of parts, it is very suitable for polishing product parts with complex irregular shapes.

    4.3 Angle cut cylinder. Cutting an end face of the cylinder diagonally is also to polish some hard-to-reach parts. The cylinder part is suitable for polishing some parts with inner holes, teeth and other curved surfaces.

    stainless steel ball media
    ufo-shaped polishing stainless steel media
  • 5. What are the specifications of stainless steel media?
  • Stainless steel ball： 2mm-11 mm.

    Ballcone： 1*3mm，2*4mm，3.5*5.5mm，4.5*7mm，6*8mm，8*11mm.

    Angle cut cylinder： 2*8mm，3*8mm，4*8mm

  • 6. Which parts can be polished with stainless steel media?
  • If your product parts are made of metal and have a hardness equal to or less than 304/302 stainless steel, then polishing with stainless steel media is the best choice. While polishing, stainless steel media can also remove surface oxide scale, turning tool marks and other defects on brass, copper, aluminum, zinc and other products.
  • 7. How do stainless steel media polish product parts?
  • Put the stainless steel media into the working barrel of the finishing polishing machine, add water and an appropriate amount of polishing liquid. After the machine is started, the stainless steel media and the workpiece will have a tumbling and rotating motion in the machine. The abrasive media and the parts rub against each other, which will cause the surface to change. Scrape off the scale, burrs, residue, etc. In addition, stainless steel media have an impact force on the parts, which will change the grain structure arrangement on the surface of the parts, forming a dense layer and achieving a shiny surface effect.
  • 8. What is the best stainless steel media?
  • The best stainless steel media should look like this:
    Fully self-grinding, the curved surface is round and smooth, and the cut surface is neat and straight.
    The specifications and sizes are uniform and the dimensional tolerances are reasonable.
    The material matches the stainless code and the anti-rust performance meets the standard.
    If you don’t know where there is the best stainless steel media, please follow our ShineTec related products. We are committed to becoming the best brand in the stainless steel media industry.

    shapes of stainless steel media
  • 9. Which finishing and polishing machine is suitable forv stainless steel media?
  • ShineTec recommends using a vibratory polishing machine with stainless steel media for polishing. The reasons are as follows:

    9.1 To achieve a good polishing effect with stainless steel media, the product parts need to be put into as much tumbling media as possible. The vibratory finishing machine can be equipped with a high-power vibration motor and a large-capacity working chamber to obtain a larger amplitude, allowing the workpiece to fully tumble in the machine and collide with the abrasive media to obtain a better surface effect.

    9.2 Because the size of the centrifugal barrel is limited, the centrifugal barrel finishing machine has a small loading capacity of tumbling media and is not very efficient. Moreover, due to the large proportion of stainless steel media, the centrifugal force generated when the barrel is loaded with abrasive media and rotates at high speed will increase many times, which greatly exceeds the design strength of the centrifugal barrel finishing machine and creates potential safety risks.

    9.3 The barrel of the centrifugal disc finishing machine also does not meet the capacity requirements compared to the vibrating finishing machine. If it is operated at full load, it will greatly exceed the design strength of the machine, and it is not suitable to use stainless steel media to polish product parts.

    9.4 The polishing efficiency of the tumbling barrel finishing machine is too slow, and the design capability of the machine itself is not suitable for heavy-duty use, and it is not suitable for polishing with stainless steel media.

    vibratory polishing of stainless steel media
  • 10. What are the benefits of polishing with stainless steel media?
  • If you don’t know how to improve the surface gloss and brightness of metal product parts and workpieces, then using stainless steel media for tumbling and polishing is the best polishing process and method.

    10.1 High polishing efficiency. Compared with polishing media such as high-alumina porcelain media, high-density porcelain media, and zirconia balls, stainless steel media have the highest specific density (7.8 g/cm3) and can obtain the highest brightness in the shortest time.

    10.2 High cleaning efficiency. Stainless steel media have very little wear and do not pollute the surface structure of metal product parts. With the assistance of cleaning agents and brighteners, they can fully clean away oil, sludge, and impurities on the surface of workpieces automatically, in large quantities, quickly, and solve the problem of manual cleaning. Time-consuming and labor-intensive problem.

    10.3 Non-destructive polishing. 不Stainless steel media have no cutting force, will not finish the surface with great force, and will not affect the dimensional accuracy of the product. It is a non-destructive polishing process.

    10.4 Extra long service life. Stainless steel media have almost no wear, and a single purchase can last almost a lifetime. There is almost no wear cost, which can greatly reduce your direct polishing costs.

    10.5 Easy to use. Ceramic polishing media will stick to each other, break, and become dirty after use. They need to be fully self-polished and cleaned before they can be used again. There are no breakage or bonding issues with the stainless steel media. After polishing, you only need to simply rinse it with water and it can be used continuously again.
  • 11. Do stainless steel media require maintenance for daily use?
  • Good maintenance habits can extend the service life of stainless steel media. Although stainless steel media is an tumbling polishing media that is easy to use and store, its service life will be accelerated if not properly maintained.

    11.1 Correct usage. After polishing, if it is not used for a long time, you need to rinse the stainless steel media with water and dry it before storing it.

    11.2 Proper mixing ratio of stainless steel media, product parts and polishing liquid. A corresponding ratio needs to be maintained among the above three. In order to save procurement costs, many people want to use as little stainless steel media as possible and put more product workpieces. However, too little abrasives will cause the product parts to collide with each other during polishing or the workpieces to directly scratch the working chamber wall of the machine and damage the lining PU. This results in reduced polishing efficiency, reduced polishing quality and possible damage to product parts and machines.

    11.3 Replacement of damaged stainless steel media. Ensure that every one of stainless steel media in the machine is intact. If some of the media are deformed or damaged, the damaged media must be replaced immediately. The damaged media surface will produce cracks, edges, and cutting edges. These parts will affect the surface effect of product parts during polishing, and even damage the product.

  • 12. In which industries can stainless steel media be used for product parts and workpieces?
  • Stainless steel abrasives can be used for finishing and polishing metal parts or workpieces in most industries.

    12.1 Professional finishing and polishing processing job shop. Stainless steel media are the most cost-effective tumbling media in the polishing process of polishing job shop. There is no wear on the abrasive, and only a small amount of chemical polishing liquid needs to be added for each processing to complete the polishing process. This abrasive media is available in many polishing processing job shop.

    12.2 Jewelry industry. After long-term storage or use, the surface of jewelry will produce an oxide layer, which will darken and turn black. Polishing with stainless steel media can restore jewelry to its original luster.

    12.3 Auto parts industry. The auto parts industry is an area where stainless steel media are widely used. Includes deburring and polishing applications. Such as engine cylinder heads, pistons, motorcycle wheels, mufflers, fasteners, gears and other products. It also has a good polishing effect on the refurbishing of some forged or cast auto parts.

    12.4 Aerospace and defense fields. The strength and reliability of product parts in the aerospace and defense fields are the most critical indicators. The impact of stainless steel media during the polishing process can increase the strength of the product surface and produce a uniform surface polishing effect.

    12.5 Medical equipment and devices. Product parts for the medical device and device industry must be guaranteed to be zero-defect. After metal parts are polished with stainless steel media, the strength and surface quality of the product will be improved. For example, titanium, chromium, stainless steel, cobalt and other materials and their alloy products are very suitable for polishing and brightening with stainless steel media.

    12.6 Motorcycle Accessories. Motorcycle accessories require high-quality products and glossy product surface quality. Using stainless steel media for polishing can quickly achieve satisfactory polishing results.
  • 13. What are the benefits of using stainless steel media for tumbling polishing?
  • 13.1 Improve the wear resistance of parts. Stainless steel media can remove components from the microstructure that affect the corrosion resistance of product parts. It can completely remove the oxide layer on the surface, eliminate cracks and other defects on the surface of parts that are easily affected by oxidation, and improve the overall corrosion resistance.

    13.2 Improves strain hardening of parts. After tumbling finishing and polishing with stainless steel media, the surface hardness of the parts can be increased. Compared with unpolished parts, the surface hardness can be increased by 50-100%.

    13.3 Brightening and burnishing effect. Stainless steel media can not only improve the strength of parts, but also improve the brightness and gloss of the product surface. After the fine polishing process, it can achieve an effect close to mirror polishing.

  • 14. How long is the service life of stainless steel media?
  • If you take appropriate daily maintenance measures, you can use it for a long time. Of course, poor usage habits will definitely reduce the use time of stainless steel media. In comparison, compared to porcelain polishing media, its service life is far longer than other abrasive media.
  • 15. Can brass parts be polished with stainless steel media?
  • Yes, brass parts can be polished with stainless steel media.
  • 16. Can nickel-plated metal parts be polished with stainless steel media?
  • Yes, stainless steel media can be used to polish nickel plated metal parts. However, the polishing time needs to be shortened to 40-60% of the ordinary polishing time.
  • 17. Can stainless steel media be used for dry and wet finishing?
  • Stainless steel media cannot be used for dry polishing. During the polishing process of product parts, metal shavings, oil stains and other impurities will be produced. If these sludge is not cleaned during the finishing process, it will adhere to the surface of the product to form a layer of oil stains, making the parts black and dull. The result is that the workpiece will become darker. The darker you throw it, the brighter it will never be.
  • 18. Do stainless steel media need to be dried when stored?
  • If you need to store it for a long period of time, such as months or years, you need to let the stainless steel media dry before packaging and storage. If it is for a short period of time, it is not necessary because stainless steel itself is rust-proof and anti-corrosion.
  • 19. Will stainless steel media damage my parts?
  • As long as the proper matching ratio of media, water, and polishing liquid is maintained during the polishing process, and the size of the media matches the size of the parts, there will be no damage.
  • 20. Do stainless steel media require special lubrication?
  • Unnecessary. When polishing with stainless steel media, you only need to add clean water and an appropriate amount of polishing liquid. There is no need to add external lubricating grease and other substances.
  • 21. Are stainless steel media magnetic?
  • Yes, stainless steel media are weakly magnetic. You can use this feature to use magnets to collect media scattered on the floor around the machine during the polishing process.
  • 22. What are the proportions of media, parts, and water when polishing with stainless steel media?
  • Generally we recommend this matching rate:

    Media : Parts : Water = 3 : 1 : 2

  • 23. Where should stainless steel media be placed when stored?
  • Please place stainless steel media in a dry, clean indoor space. Although stainless steel media themselves are anti-corrosive and anti-rust, low-grade materials will also rust if they are exposed to humid, acidic and alkaline environments for a long time.
  • 24. How long does it usually take to polish with stainless steel media?
  • It usually takes about 30 minutes to polish with stainless steel media. If the surface brightness does not improve significantly after more than 1 hour, extending the polishing time will have no effect.
  • 25. Can jewelry be polished with stainless steel media?
  • Yes, jewelry can be polished with stainless steel media.
  • 26. Why does the surface of the part become darker and lose its luster after being polished with stainless steel media?
  • When polishing with stainless steel media, it is found that the surface of the part becomes black and dark because the oil on the surface of the media or the carbon in the impurities is deposited on the surface of the product. The solution is to clean the stainless steel media with cleaning liquid before polishing.
  • 27. Which stainless steel media should I buy?
  • 27.1 Choose the appropriate stainless steel media according to the shape and size of your product parts and workpieces. Please do not use large-sized media to polish small-sized parts to avoid damage. If you use small-sized media to polish large-sized parts, it will take more man-hours and have a big impact on the service life of the media.

    27.2 Make sure that the internal and external surfaces of your parts, as well as holes, gaps, corners, etc., can be polished with stainless steel media.

    27.3 According to the actual usage environment of your product. If your use environment contains acid and alkaline substances, you need to choose high-grade stainless steel media. The following is the corrosion resistance of various grades of stainless steel media:

    440C < 420 < 302 < 304 < 316
  • 28. Why do my product parts turn black after being polished with stainless steel media?
  • The main reason is that the stainless steel media needs to be pre-cleaned before polishing. If there are some residual brighteners, sludge, debris and other impurities attached to the media surface after the last polishing, polishing again will contaminate your product parts with these impurities, causing the product surface to turn black.
  • 29. Do stainless steel media need to be cleaned before each use?
  • We recommend cleaning stainless steel media once before use. This ensures that the surface of the part will not turn black or dull during the polishing process.
  • 30. How much stainless steel media is required to complete a polishing process?
  • Depending on the machine capacity used. It is recommended that the total volume of materials does not exceed 2/3 of the working chamber.
    The general ratio of parts to media is 1:3, and this ratio can also be adjusted according to the shape and size of the workpiece.

  • 31. What is the best machine for polishing with stainless steel media?
  • We recommend using a vibratory polishing machine to polish with stainless steel media. The advantages are: easy to load and unload, you can check the polishing effect at any time, large loading capacity, and simple to use.
  • 32. Do stainless steel media need rust inhibitors?
  • Unnecessary. Because stainless steel media are made of anti-corrosion and anti-rust stainless steel materials, there is no need to add additional anti-rust liquid.
  • 33. Can other types of finishing machines be polished with stainless steel media?
  • Centrifugal disc finishing machines, centrifugal barrel finishing machines, and barrel tumbling finishing machines can all use stainless steel media for polishing. It’s just that other machines need to reduce the loading of media when polishing. Generally, the amount of media is reduced by half compared to using porcelain polishing media.
    tumbling polishing, brightening with stainless steel media
  • 34. Is polishing with stainless steel media faster than using other polishing media?
  • Yes, because the density of stainless steel media exceeds that of porcelain polishing media, it is easier to obtain a bright surface effect in a shorter time.
  • 35. Can plastic parts and workpieces be polished with stainless steel media?
  • No. The material of plastic products is not suitable for deburring and polishing with stainless steel media. You can use ceramic deburring media or resin media to remove burrs, and use brightening media to polish the brightness.
  • 36. What is the price of stainless steel media?
  • The price of stainless steel media varies according to grade, shape, and size. The larger the size, the lower the price. Of course, its price will be much higher than tumbling media such as brown corundum ceramic media, white corundum ceramic media, and silicon carbide ceramic media. However, in terms of service life, the cost of using stainless steel media is far lower than that of other abrasive media. Maybe you are concerned about where to find the cheapest stainless steel media, please contact us now, ShineTec will give you a satisfactory offer.
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