Aluminum turning parts-Aluminum recessed washers knurled

Left: Aluminium turning parts bore knurled with bores and an aluminum recessed gasket with anodized surface
About anodizing of aluminum turning parts: Like the small parts on the left, the electrolytic anodizing process, The transparent film produced by oxidation can be colored into various color films and become vivid colors.

On the other hand, the anodized oxide film can improve the wear resistance and rust resistance of the parts, especially the anodizing treatment, and can increase the hardness of the aluminum turned parts.
See examples of various colors behind the surface anodes of aluminum turnings.
Left: Large parts, Using raw materials after ruled to pull, After the automatic lathe processing is completed, It can be seen that it has multiple step surfaces and multiple inner apertures.