SUPERABRASIVE GRAIN CHIP AND SUPERABRASIVE TOOL

摘要

PROBLEM TO BE SOLVED: To provide superabrasive grain chip and superabrasive tool suppressing chipping of a surface layer part of the superabrasive grain and chipping advancing from the surface layer part. SOLUTION: The superabrasive grain chip 7 is formed by including the superabrasive grain and a binder made of hardened PET (polyethyleneterephthalate) resin to hold the superabrasive grain. In the superabrasive grain chip 7, an amorphous part 7b made of thermoplastic resin of an amorphous state exists in the surface layer part on a cylindrical side face 25 crossing an action surface 21 regarding machining of a workpiece. COPYRIGHT: (C)2010,JPO&INPIT