公开(公告)号：DE69102600T2

公开(公告)日：1995-02-09

申请号：DE69102600

申请日：1991-08-12

Applicant: UNITED TECHNOLOGIES CORP

Inventor： BAUMGARTEN ROBERT W ,  ROBERTSON JOHN M

IPC: B21J1/00 ,  B21K25/00 ,  B23K20/02 ,  B23P6/00 ,  C22F1/00 ,  C22F1/10 ,  C22F1/18 ,  F01D5/00 ,  F02C7/00

Abstract: A hole in a metal component such as a gas turbine rotor flange (3) of superalloy or titaniurn is repaired by enlarging the hole to a uniform diameter (5), inserting a plug (6), of the same or similar material and heat treatment in the enlarged hole (5) and applying sufficient pressure (9,10) to the plug and heating the plug and the surrounding material to forge join the plug and the walls of the hole whereby a fully recrystallized joint interface is achieved between the plug and the walls of the hole. Excess material is removed.