Effect of the Angle of Engagement and the Angle of Disengagement on the Chipping Failure of the Fly Cutter : Face Milling of Cylindrical Workpiece (3rd Report)

This report aims to apply the variation method of the angle of engagement and the angle of disengagement at the facing milling to the toughness test of the tool materials. The main results are as follows. (1) The face milling of cylindrical workpiece coveres the angle range of engagement and the angle range of disengagement from -90 to +90 degree. The chipping of tool edge is influcenced by the initial contact of tool at increasing engagement angle. Therefore, it is possible to test the dynamic toughness of the cutting tool materials. (2) As the material to be cut is very small, the wear of tool tip can be restricted to a minimum. The test results show that tool material of high hardness is apt to cause chipping at the lower shock.

alternating multi-counter automata

1-inkdot

alternation hierarchy

sublinear space

computational complexity