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Almost any quality epoxy should work. More important is the temperature and environment (wet? oily?) the parts must live in. And surface preparation and cleaning prior to assembly is more critical than getting the exact right adhesive.
What kind of environment does the finished product have to survive?
Soft solder. You can do it in a frying pan.
You get much better performance if you are able to sand blast both surfaces. Literally 10X the holding power compared to just cleaned smooth surfaces. I've seen Dan Gelbart perform this exact experiment in his 100 ton press with aluminum cylinders glued into holes. The difference is amazing. Maybe you can't mask or blast the surfaces completely but do the best you can.
Soft solder. You can do it in a frying pan.
Hopefully the application will keep the part at a narrow range of temperatures. There is quite a difference in thermal expansion between copper and steel. Copper coefficient is 16-16.7 and steel's is 11-12.5 so bad things can happen if the part heats up or cools down a lot.
metalmagpie
You get much better performance if you are able to sand blast both surfaces. Literally 10X the holding power compared to just cleaned smooth surfaces. I've seen Dan Gelbart perform this exact experiment in his 100 ton press with aluminum cylinders glued into holes. The difference is amazing. Maybe you can't mask or blast the surfaces completely but do the best you can.
Soft solder. You can do it in a frying pan.
Now, that sounds interesting. How do I make sure the two surfaces touch one each other, stay flat ?
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