Patent ID: 7021307
Filing Date: 2006-04-04
Classification: B24D,B28D

Abstract:
1. A rotary cutting saw comprising: a base disk; and a plurality of abrasive segments which are fixed to an outer circumferential surface of the base disk, and which have respective outer surfaces cooperating with each other to constitute an outer circumferential surface of the rotary cutting saw; wherein each of the abrasive segments has at least one recess opening in the outer surface thereof, the recess is defined by axial direction surfaces that are opposite to each other as viewed in a circumferential direction of the base disk, and the recess has a same sectional shape between the axial direction surfaces as viewed in the circumferential direction and no interconnect structure connects two opposite radial direction surfaces that are opposite to each other as viewed in an axial direction of the base disk; wherein each of the at least one recess has a radially outer portion and a radially inner portion which is located inwardly of the radially outer portion as viewed in a radial direction of the base disk; and wherein the radially outer portion has a width that is constant in the radial direction, and the radially inner portion has a width that varies in the radial direction.