In this operation, performed on a third MCH250, the fixture is loaded with two front axle housings and two front axle covers so that the machine can semifinish
and finish all main bores in the housing and the cover in one clamping.
Developed by Valenite MODCO, the Kam-Set features automatic sizing of its tool units that allows machines to bore a semifinish
diameter in one pass, chamfer the top of cylinder with auxiliary inserts, and then automatically adjust to finish bore the cylinder walls using the same tool as the unit is retracted from the engine block.
500"-dia round inserts for facing, ramping and plunging at high metal-removal rates, and a traditional 90 deg ballnose style available in both a standard design for high-speed semifinish
and finish contouring, and a helical-flute design for deeper cuts or sidewall milling.
During the semifinish
stage, cutting is typically characterized by widely varying cutter loads as the tool profiles through the roughing cuts to near net shape.