Ed:
If you don't get the finish you want, raise the speed, especially when you get closer to the center of the workpiece. I usually try to make my finish cut at least .010, cuz carbide doesn't do well with light cuts. For example, 3/4" to 1/2", 2 cuts of .050, and finish with .025; 1200-1500 RPM, and feed to give the surface finish you want.
A "Little Mister" or similar coolant setup is about $100, and really lets you work the carbide. Mist coolers can be set up so there is NO smoke or steam, and the workpiece stays cool too!
Regards,
Bob
If you don't get the finish you want, raise the speed, especially when you get closer to the center of the workpiece. I usually try to make my finish cut at least .010, cuz carbide doesn't do well with light cuts. For example, 3/4" to 1/2", 2 cuts of .050, and finish with .025; 1200-1500 RPM, and feed to give the surface finish you want.
A "Little Mister" or similar coolant setup is about $100, and really lets you work the carbide. Mist coolers can be set up so there is NO smoke or steam, and the workpiece stays cool too!
Regards,
Bob
bobm4360, proud to be a member of MetalworkingFun since Jul 2012.