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
- 0 Comments
1. Stainless steel sheet parts before polishing
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
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.