Method of repairing turbine blade

Details Method of repairing turbine blade Method of repairing turbine blade

B - Operations, Transporting

23

P

26/150

B23P 15/02 (2006.01) B23P 6/04 (2006.01) F01D 5/00 (2006.01)

Patent

CA 1218835

ABSTRACT A method of repairing damage round the lacing wire hole in a turbine blade, said method comprising the steps of: (a) removing the lacing wire and any damaged material from the blade around the lacing wire hole; (b) inserting a piece of new material in said lacing wire hole; (c) securing said piece of material in place by a welding or brazing operation; (d) subjecting at least that part of the blade to which repair has been effected to a heat treatment process to relieve residual stress; (e) machining the repaired part of the blade to return the blade to its original form (f) reforming the lacing wire hole.

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