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Showing results for tags 'Speeds and feeds'.
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I have a small pocket that needs to be finished after HT. It's only .210 deep and I have to use a 3/16 end mill to get in there. We ordered some AlTiN coated Accupro end mills from MSC for this. I'm finding out that these cutters are junk. I can't find any recommended cutting speeds for these cutters. The pocket was roughed before HT so I only have about .015 stock on the floor and walls. The pocket is .210 deep and .500 X .875. Something this small, I'd think even a crappy end mill would work. As a starting point, I tried 100 SFPM and .002 chip load (S2040/F12) and the cutter was dull before finishing the pocket. The tool isn't chipping, it's wearing. Does anyone have any recommendations for speeds and feeds for this application? I'm thinking I need to lower the RPM or increase the feed. Thad
