gene heskett wrote: >> >> Roland Jollivet <[email protected]> wrote: >> >>> >> Taken directly from the OSG 2-3 flute carbide end mill section. >> >> dia rpm feed (ipm) >> .015 100000 7.1 >> .020 62000 7.9 >> 0.03 40000 7.9 >> 0.0625 21200 7.9 >> 5/64 16000 11.8 >> >> depth >> < 1/32 .25D >> 1/32 -> 5/64 0.5D >> >> scaling those spindle speeds gives more like .8 ipm and 0.03" >> depth/pass. >> >> > So that is saying that my 1.5 ipm @ 2500 revs was still too fast by a > factor of 2? > > ONLY if you were using the .030" plunge per pass (half tool diameter), and a 2 or 3-flute cutter. But, you were using a 4-flute cutter at .005" plunge, so that would allow you to go much faster.
I really only know the numbers by gut feel with 1/8" end mills, but I run 10 - 15 IPM on those with about .050" plunge. I do run a bit slower when "plowing" full width, though. Jon ------------------------------------------------------------------------------ Keep Your Developer Skills Current with LearnDevNow! The most comprehensive online learning library for Microsoft developers is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, Metro Style Apps, more. Free future releases when you subscribe now! http://p.sf.net/sfu/learndevnow-d2d _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
