I'm working on a piece of technology that demands one part being either copper or brass, and the other part be aluminum. I intend to have the two items screw into each other. Is there any kind of foreseeable problem joining brass and aluminum in this fashion?
I intend to use common 6061 aluminum and probably copper or some copper alloy like beryllium copper-- brass only as a last resort. What's the worse that can happen with a copper/aluminum combination?
Galvanic corrosion at the points of contact. Is there no way to use a plastic spacer between them or use a less reactive metal, like Stainless steel, nickle, or titanium.
i like ernie's idea, but i got the impression that the pieces would screw into eachother like fittings and not together like a flange. in which case a threaded plastic bushing might be helpful, pressed onto the male end and then threaded as one piece. this would, of course, add the extra cost of plastic and joinging.
i have heard of situations in which either electrolytic coatings were used, or even screws / moutning hardward of a 3rd dissimilar metal who's presence can slow (but not stop) detrimential chemical reactions.
sorry i'm not enough of a chemist to tell you more about your particular situations. maybe there is some sort of chemistry forum?
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