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What are good ways to improve surface quality of aluminum castings?
- Jan 16, 2017 -

After forming of aluminum castings, in order to obtain better surface quality, are generally required for further processing. Electropolishing is an ideal effect in a way specific way what is it?

So-called electrolytic polishing, which is by way of electrolytic, make a layer of oxide film formed on the surface of aluminum castings, so as to change the role and properties of casting surface. After the electrolytic polishing, aluminum castings is changing the policy is very clear, including the surface; corrosion resistance, wear resistance, hardness, and other performance enhancement; protection of metal surfaces.

Although anodizing will have a similar effect, for aluminum casting, however, as the raw material in the alloy composition is complex, it would prevent the formation of an oxide layer on the surface of the alloy quantity and quality is different, final results may be the casting of oxidation of the surface uneven, and other defects. In this way, also need other techniques to compensate.