Traditional metal fabrication using saws, hammers, pliers, files, etc.
Looking for a way to harden copper
Last post 11-12-2009 4:41 AM by
emailkunst. 3 replies.
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11-01-2009 6:08 PM
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Julian***
- Joined on 02-01-2009
- Posts 5
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Looking for a way to harden copper
I am looking for a way to harden copper outside of work hardening. I have made an omega out of copper wire and I don't want to hammer it. I have tried tumble polishing it but it is still very soft. Is there a way to flame harden copper or bake it like Argentium?
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emailkunst
 - Joined on 06-06-2008
- Germany
- Posts 184
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Re: Looking for a way to harden copper
Pure copper can be hardened only by cold working. Flame hardening is not possible.
However, there are hardenable copper alloys. Search in the Internet for a suitable alloy .
You can also the following do. Clamp one end of the wire in a vice. Take the other end in a pliers. Straighten the wire as much as possible. By that the wire get harder. Bending the Omega after that
Edmund www.emailkunst.de
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nicejewelmaker
 - Joined on 03-08-2008
- Posts 19
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Re: Looking for a way to harden copper
A suitable 'hard' copper can be an alloy of 25% Cu with 75% gold which is 'red gold' and looks like copper but is much harder and corrosion resistant.
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emailkunst
- Joined on 06-06-2008
- Germany
- Posts 184
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Re: Looking for a way to harden copper
But that is not a copper alloy but a 750 gold alloy. And the price is many, many times higher.
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