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Re: CNC Tooling
Most work I do with a 3 flute carbide 1/4" endmill with flood coolant is at 6000 RPM and around 40-50 IPM depending on stepover and depth of cut, and I bet I could feed a good deal faster than that. I slow it down to about 20 IPM for a 2-flute ball endmill.
On our router, I'm running about 18,000 RPM on a 1/4" 3-flute carbide, and cut around 12 IPM (and much lighter cuts too) but that's due to a lack of coolant of any sort, poor chip evacuation, and chip recutting which is causing a heating issue.
A machinist I work with is running a 1/4" 3-flute tool at 12,000 RPM and 350 IPM (with flood coolant of course) with a 1/4" DOC and high-speed machining toolpaths with probably 25% stepover.
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Teacher/Engineer/Machinist - Team 696 Circuit Breakers, 2011 - Present
Mentor/Engineer/Machinist, Team 968 RAWC, 2007-2010
Technical Mentor, Team 696 Circuit Breakers, 2005-2007
Student Mechanical Leader and Driver, Team 696 Circuit Breakers, 2002-2004
Last edited by sanddrag : 21-06-2013 at 09:46.
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