I have one job in the shop running a standard 1.0 carbide e/m (un-coated)
running at 6000 RPM and feeding at 200IPM with a .785 depth of cut and using 48 degree engagment angle on heat treated 15-5. Every time I have used true-mill I have had to adjust the feeds and speeds based on the features of the part.
I also just finished running a titanium part using a .250 carbide E/M cutting
.560" deep pocket with 2 bosses at a 50 degree engagment angle at 6750 RPM and F90.0 and the full .560" depth of cut . I couldnt beleive how well it worked and the cutter still looked brand new after it was complete. |