[Jewelry making - Article 00768] - Re: [Orchid] Milling Silver

[Nicholas Carter and Felice Luftschein]

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>     what feed rate and cut depth should I use and should I use
>     lubricant, 

    coolant or just keep the swarf clear? 

    Using a 1/32" endmill, at 10k rpm I use a rather slow feed of 3 ipm.
    w/ .01" DOC. I have gone faster, but I found that it raised a burr
    more dramatically than when I went slow. You could certainly go
    faster. I don't use coolant, but I do use an air blast to clear the
    chips out of I feel like they are packing in the cut, sometimes I
    don't though. To date I am only milling flat sheet though. 

    If you can use coolant it will certainly help a lot, and allow you
    to go faster/get a better finish. I don't because I'm using double
    stick tape as a fixturing method. 

    Ultimately this is in the realm of experimental machining, so be
    prepared to break a few cutters... 

Nick
www.cartertools.com/nfhome.html
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