Apart from mechanical polishing, what other surface treatments are available for aluminium alloy sheets?

Apart from mechanical polishing, what other surface treatments are available for aluminium alloy sheets? Many people want to know exactly what surface treatments are available before they buy aluminium sheets, so that they can better select the product for their use. Today we are going to talk about the surface treatment of aluminium sheets other than mechanical polishing. In general, there are sanding processes, shot blasting processes and tumbling processes.

Sanding process

Sanding is another technique used in addition to mechanical polishing to produce the desired texture on aluminium profile products, usually in the form of a large belt sander. The surface finish produced by sanding can be in the form of tiny parallel lines etched in the same direction on the surface of the aluminium sheet, or tiny grooves that create a feathery texture and reduce the reflective quality of the aluminium. Another popular effect is the cross-line pattern. This finish is commonly used for bathroom hardware, picture frames and other aluminium extrusions.

The second type of aluminium sheet finish is the shot-blasting process. This mechanical polishing process is shot blasting, which produces a grainy finish that helps to hide excessive surface imperfections. And the third type of surface treatment is the tumbling process. Tumbling is a versatile mechanical polishing method that helps to deburr, clean and polish.