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How to do mirror polishing of aluminum castings

2023-03-24 16:08:42

How to do mirror polishing of aluminum castings

1. Start with a grinding process with a 36-grit sandpaper. Use a high-speed grinder to remove any rough edges and burrs.

2. Follow this with a 120-grit to smooth the surface.

3. Move to a finer grit such as a 220-grit.

4. Polish the surface with a 400-grit sandpaper.

5. Use a polishing wheel to buff the surface with an aluminum polishing compound.

6. Finish by buffing the surface with a soft cloth.

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