Patent ID: 6678956
Filing Date: 2004-01-20
Classification: B23P,C23C,F16C,Y10T

Abstract:
A method for manufacturing a bearing boss with a thermal spray coating layer, comprising the steps of:preparing a structural base material for a boss, said structural base material having an annular body and containing an original hole to be ultimately formed into a joint pin hole of a predetermined diameter; fitting an inner masking member in said original hole in said structural base material to mask an end face of said structural base material on surface areas corresponding to an allowance range of a machining operation to be performed on said original hole; and forming a thermal spray coating layer on unmasked surface areas on said end face of said structural base material by the use of hard material; said inner masking member having an outside diameter larger than a joint pin hole to be ultimately formed by machining said original hole in said structural base material.