Function of Tool Features for Face Milling

Since Mitsubishi Materials' normal sub cutting edge width is 1.4mm, and the sub cutting edges are set parallel to the face of a milling cutter, theoretically the finished surface accuracy should be maintained even if run-out accuracy is low.

• Sub cutting edge length has to be longer than the feed per revolution.
* Too long sub cutting edge causes chattering.

• When the cutter diameter is large and feed per revolution is longer than the sub cutting edge of the wiper insert, use two or three wiper inserts.

• When using more than 1 wiper inserts, eliminate run-out of wiper inserts.

• Use a high hardness grade (high wear resistance) for wiper inserts.