MITSUBISHI MATERIALS CORPORATION
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CORNER ANGLE(CH) AND CUTTING CHARACTERISTICS

Cutting Resistance Comparison Between Three Cutting Resistance Forces in Milling
Corner Angle

45°		 The largest back force.
Bends thin workpieces and lowers cutting accuracy.
* Prevents workpiece edge chipping in cast iron cutting.		 Corner Angle 45
Corner Angle

0°		 Back force is in the minus direction. Lifts the workpiece when
workpiece clamp rigidity is low.		 Corner Angle 0
Corner Angle

15°		 Corner angle 15° is recommended for face milling of workpieces with low rigidity such as thin workpieces. Corner Angle 15

* Principal force: Force is in the opposite direction of face milling rotation.
* Back force: Force that pushes in the axial direction.
* Feed Force: Force is in the feed direction and is caused by table feed.