[Jewelry making - Article 00483] - Re: [Orchid] Melting point of solders and copper tubing

[Jeff Demand]

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Peggy

    I can't quote a book reference off hand and my knowledge of the
    metallurgy involved tends to be empirical. I use mainly hard solders,
    older joints just don't seem to remelt or move without a lot of
    effort. Easy and even medium solders are different, too much low
    alloy in the mix I believe. Usually easier and better to avoid using. 

    If you want heavy wall copper tube one source is to pull down BC"
    tubing (local hardware store)  A boat winch draw bench makes the job
    easier, and you might need an internal mandrel to reduce the wall
    thickness. With some care it should be possible to make telescoping
    sizes. 


Jeff
-
Demand Designs
Analog/Digital Modeling & Goldsmithing
http://www.aztec-net.com/~jdemand


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