It now machines just fine, at 30 IPM with a 1/2" HSS 2-flute, and 75 IPM with a 1/2" carbide 3-flute, even with no coolant.
Regards,
Ray L.
Can you tell us the RPM's you are running?
Maybe what kind of cut depths you are running?
It will probably help some of us a lot if we run into a similar
situation.
Thank You,
Scott
For a 1/2" HSS 2-flute, 3100 RPM, 0.150" DOC, 30 IPM works well. For a 1/2" Carbide 3-flute, 6100 RPM, 0.150" DOC, 75 IPM works well.
For a 1/2" HSS 2-flute, 3100 RPM, 0.500" DOC, 12 IPM.
I'm still playing with settings to find the optimum for deeper cuts. I tried the HSS at 0.225" DOC, 18 IPM, but that didn't work terribly well - chipload was too high.
Regards,
Ray L.