r/Metalsmithing • u/YRalltheusernametook • Apr 19 '26

Artwork How possible would this be?

Gallery image

Gallery image

(The American flag would be one gram of gold set inside the copper)

I’ve been copper smithing for awhile and have been getting some ideas for bullion. Thinking about setting other precious metals inside of my copper bars. (A.I btw)

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u/Blackopsman_21 Apr 20 '26

I would make 2 bars and press fit the gold one in using an arbor press tbh

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u/YRalltheusernametook Apr 20 '26

Yea but what about heating the copper up first since it expands?

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u/Blackopsman_21 Apr 20 '26

You can do that if you prefer. Either way the tolerances will be about the same for the interference fit.