[Jewelry making - Article 00265] - Re: [Orchid] Turning Speeds and Angles for Platinum

[John Donivan]

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>     Platinum is indeed very 'sticky' or gummy - actually the material
>     sticks to a cutting 

    Paul's writing aroused some curiosity in me, so I went snooping
    around. This is an interesting article - I'll past more if I find
    them. Doesn't answer the question, but it's interesting....
    http://www.flowcorp.com/waterjet-resources.cfm?id=329 

    http://www.ganoksin.com/borisat/nenam/pt-fabrication-stamping.htm 

    a bit of stuff 

    Just a paste, not whole article: 

        Platinum alloyed with cobalt (Pt/Co) will make a very good
        casting alloy. It's wet and capable of filling great detail
        during lost-wax process casting. 

        Platinum alloyed with ruthenium (Pt/Ru) is a good alloy for use
        in machining and lathe operations. 

        Platinum alloyed with iridium (Pt/Ir) has great features in
        fabricating and all-purpose work. 

        Finishing.com had a couple of people asking the same questions,
        but no answers.. 

    Actually diamond cutting, but discusses tooling, plus this site is
    the place to look deeper: http://www.pgi-platinum-tech.com/v11n3.html 


    And finally, the source:
    http://www.johnsonmattheyny.com/technical-manual.php 

    Hope this helps - just sharing my own learning experience.... 

http://www.donivanandmaggiora.com
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