[Jewelry making - Article 00296] - Re: [Orchid] Mystery from a jeweler's estate

[Gary Bourbonais]

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>     No question your mystery metal triangles are tungsten carbide tool
>     "points" - to be brazed clamped or otherwise affixed to a steel
>     carrier tool. The ones you have look like lathe tool points.
>     Tungsten carbide is super hard but somewhat brittle so a steel
>     carrier is used. It's the carbide tips that do the cutting work. 

    I sell these in the day job.... 

    Mostly some form of tungston carbide... 

    Some of them are actually quite ornate, and they come in many
    colors... And shapes...triangle, diamond, square, and round... Some
    have holes... You can get some coated with Diamond or CBN... 

    I have absolutely no idea how they would solder or braze onto
    findings... 

    The ornate design one sees at times has to do with chip-breaking and
    such.... 

    TIN (titanium nitride) makes them golden...but they come in many
    colors... 

    Machinist cufflinks and/or tie bars...? 

    If small enough, earring dangles...? 

    Other machinists would recognize immediately..... 

Just muttering....

Gary W. Bourbonais
A.J.P. (GIA)

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