03-04-2015, 02:49 PM
What kind of tool are you using for the face milling operation? Looks like cold rolled 1018 steel and perhaps an insert cutter.
If the cutter is HSS, you're OK with the oil for cutting lube. If the cutter is an insert mill, cut it DRY! The thermal shock micro-cracks of hitting the oil will kill carbide inserts faster than just wearing them out.
If the cutter is HSS, you're OK with the oil for cutting lube. If the cutter is an insert mill, cut it DRY! The thermal shock micro-cracks of hitting the oil will kill carbide inserts faster than just wearing them out.