Patent ID: 6846340
Filing Date: 2005-01-25
Classification: B24D

Abstract:
1. A method of manufacturing a grinding wheel which includes a cylindrical core body and a plurality of part-cylindrical abrasive segment chips bonded to an outer circumferential surface of said cylindrical core body, said method comprising: a forming step of forming an unfired part-cylindrical precursor for each of said part-cylindrical abrasive segment chips, by pressing a mixture including abrasive grains, a vitrified bond, and a caking agent; a firing step of firing said unfired part-cylindrical precursor to prepare said each of said part-cylindrical abrasive segment chips, by using a supporting member which has a part-cylindrical surface with which said part-cylindrical surface of the part-cylindrical precursor is held in close contact during said firing step, and a bonding step of bonding said plurality of part-cylindrical abrasive segment chips to said outer circumferential surface of said cylindrical core body, wherein said unfired part-cylindrical precursor is fired, while being supported by said supporting member such that said unfired part-cylindrical precursor is held in contact at a part-cylindrical surface thereof with said part-cylindrical surface of said supporting member, and wherein said supporting member is made of a material having a coefficient of thermal expansion which is different from a coefficient of thermal expansion of said each of said part-cylindrical abrasive segment chips, so as to prevent from adhering the part-cylindrical abrasive segment chips to the supporting member.