Patent ID: 6227945
Filing Date: 2001-05-08
Classification: B24B,B24D

Abstract:
A method for polishing the outer periphery of a disc-shaped workpiece, comprising the steps of:accommodating the disc-shaped workpiece supported by a support shaft in a cylindrical polishing drum having an abrasive material disposed to the inner periphery of it; andpolishing the outer periphery of the workpiece by relatively rotating the polishing drum and the workpiece while causing at least a part of the outer periphery of the workpiece to come into contact with the abrasive material, the axial line of the polishing drum and the workpiece support shaft are tilted with respect to one another a prescribed angle so that the outer periphery of the workpiece alternately comes into contact with both the inner peripheries of the abrasive material which confront each other at approximately 180.degree..