Patent ID: 6200689
Filing Date: 2001-03-13
Classification: B23K,C21D,Y10S,Y10T

Abstract:
A method of repairing an annular metallic article having an axially extending annular support and a projection generally radially extending therefrom, the projection having an associated operating radial height as measured from a radially facing annular first surface of the support and an associated shape, the method comprising:removing at least an upper portion of the projection forming a stub extending away from the first surface wherein the stub has a bonding surface at a stub end spaced apart from the first surface,metallurgically bonding a sufficient amount of metallic material to the bonding surface so to allow restoration of the projection to the associated operating height and shape and wherein an annular heat affected zone is formed in the stub adjoining the bonding surface during said metallurgical bonding,forming a restored projection by removing a first portion of the metallic material to restore the projection to the operating height and shape, andlaser shock peening an annular first outer surface portion of the stub with the metallic material bonded to the bonding surface after the metallic material has been bonded to the bonding surface wherein the first outer surface portion extends in a generally radial direction over at least a portion of the heat affected zone.