公开(公告)号：EP2900416A1

公开(公告)日：2015-08-05

申请号：EP13841068.3

申请日：2013-07-19

申请人： United Technologies Corporation

发明人： LIN, Wangen ,  SCHAEFER, Robert, P. ,  VARGAS, Chris

IPC分类号： B23P6/04

CPC分类号： B23P6/04 ,  B23K1/0018 ,  B23K1/20 ,  B23K1/206 ,  B23K31/02 ,  B23P6/007 ,  B23P6/045 ,  F01D5/005 ,  F01D9/065 ,  F01D25/162

摘要： A method of repairing defects in a casting formed from non-weldable or difficult-to-weld alloys is disclosed. The method includes removing the defect from the casting thereby forming a cavity in the casting, placing a filler material in the cavity and fusion welding the filler material in the cavity. The fusion welding produces surface cracks on the casting and sub-surface cracks in the casting. The method then includes brazing at least some of the surface cracks on the casting and processing the casting with a hot isostatic pressure (HIP) process to close at least some of the sub-surface cracks in the casting.