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  1. 09-04-2010 #17
    Robin Hewitt's Avatar
    Lives in Seaford, Sussex, United Kingdom.
    Robin Hewitt
    Last Activity: 13 Hours Ago Has a total post count of 1,618. Received thanks 109 times, giving thanks to others 7 times. Is a beta tester for Machinists Network features. Referred 1 members to the community.
    Maths isn't exactly my strong point, but...

    For sake of argument, consider a 6mm tool at 6000rpm

    6mm*pi*100rps=1885mm/s=6.18ft/s at the cutting edge

    1hp=550ft.lbf/second

    550/6.18=89 lbf=Whoops!

    Irving will now tell me where I went wrong :naughty:

    Best

    Robin
    Last edited by Robin Hewitt; 09-04-2010 at 12:18 PM.
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