METHOD FOR REPAIRING MACHINE PART, METHOD FOR FORMING RESTORED MACHINE PART, METHOD FOR MANUFACTURING MACHINE PART, GAS TURBINE ENGINE, ELECTRIC DISCHARGE MACHINE, METHOD FOR REPAIRING TURBINE COMPONENT, AND METHOD FOR FORMING RESTORED TURBINE COMPONENT

摘要

Disclosed is a method for repairing a machine part. A defect in a portion to be repaired in the machine part is removed, and a pulse discharge is produced between the defect-removed portion and a formation electrode which is composed of a formed body or the like which is made of a metal powder or the like, so that the material and the like of the formation electrode is deposited in the defect-removed portion by the discharge energy, thereby forming a porous build-up therein. Next, dimensional finishing is performed for shaping the porous build-up to have a certain thickness.