[Jewelry making - Article 01111] - [Orchid] Binding metals

[Jerry]

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Continue from:

        Soldering silver to Aluminum
        http://www.ganoksin.com/orchid/archive/200504/msg01077.htm

        and

        Welding gold to steel?
        http://www.ganoksin.com/orchid/archive/200504/msg01058.htm


    After some thought and talking to my brother who is a Non
    Destructive Material Testing engineer, Aluminum and silver, try
    epoxy, the only thing you can bind to aluminum is aluminum, that is
    generally a welding process. 

    Gold to steel, a layer of copper or nickle is needed between the two
    so that silver solder will have the maximum hold. I have a Lincoln
    Precision Tig 275 welder in my shop, it's a big honker of a unit,
    but I can fuse copper to copper with no flux and gold to about any
    ferrous metal. I can get two needles to weld tip to tip without
    burning the metal or weld boiler plate to an armoured car. But this
    is an expensive machine and worth, every penny, great for small
    work. 

Jerry

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