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topic 11983

Finishing for cast aluminum part



I am designing a 3"X4"X1" die-cast part by using aluminum AA 384. The original design of that part is by machining (6061), so I have to anodize it to improve wear and corrosion-resistance. Should I use the same process on the die-cast part?

David Lin
- Laurel, Maryland


If it was sulfuric anodize you were using, you can anodize 380 casting alloy, although the voltage required is higher. If it was chromic anodize, alloying elements will be a problem.

tom pullizi signature
Tom Pullizzi
Falls Township, Pennsylvania

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