Hi Jon,
> .094 tool at 2000 RPM is 50 SFPM, really slow for aluminum. > 600 SFPM is recommended. > chip load for HSS end mills should be .010 * end mill > diameter, so .010 * .094 = about .001". > At these settings, feed rate should be 4 IPM. The Machinist toolbox with 600SFPM, carbide, 4 flute, 0.094 diameter, chip load 0.001 comes out to 24,000 RPM and 97 ipm. <SNIP> > Using a 1/8" carbide end mill at about 3000 RPM (limit of my > mill), I would plow full-width cuts at a depth of .062" > (half diameter) at about 4 IPM, then cut the sides at 10-15 > IPM with a side step over of about 0.25 - .050, and a final > dimension pass taking off .010 on the side at 8 - 12 IPM. > This is with a 4-flute cutter. As long as you keep the > cutter moving right along, you won't have a problem with > gumming up the cutter. > > Jon The trick is to not get it hot enough to melt I guess. Watched a video the other day where, to make the video better he cut back the flood coolant a bit to better see what it was cutting and had an instant clog up of the mill. _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
