METHOD OF MANUFACTURING POLISHING TOOL, POLISHING TOOL, AND MOLD FOR MANUFACTURE OF POLISHING TOOL

摘要

PROBLEM TO BE SOLVED: To provide a method of manufacturing a polishing tool, which enables manufacture of the polishing tool enhancing polishing capability on an outer peripheral side with respect to an inner peripheral side by changing an air bubble content in a radial direction, without the need for a complicated step.;SOLUTION: A method of manufacturing a polishing tool includes: a powder charging step of charging polishing material-containing powder 1 into a molding tool 10 that comprises a cylindrical diameter-reducible transverse punch 13 having openings 17 and 18 formed at both ends, and lower and upper dies 11 and 12 for sealing the openings 17 and 18, respectively; and a powder compression step of compressing the powder 1 by applying a radial force to the transverse punch 13 and reducing the diameter of the transverse punch 13.;COPYRIGHT: (C)2015,JPO&INPIT