Method of repairing turbine blades

Details Method of repairing turbine blades Method of repairing turbine blades

B - Operations, Transporting

21

K

26/150

B21K 3/04 (2006.01) B23P 6/00 (2006.01) B23P 15/04 (2006.01) F01D 5/00 (2006.01)

Patent

CA 1319250

ABSTRACT "Method of Repairing Turbine Blades" A method of repairing a turbine blade of the type forming part of an array of turbine blades which are provided with tennons at their outer ends, which tennons engage with a circumferential shroud. The repair steps involve the removal of the old damaged tennon and end of the blade, which may or may not be damaged, and replacement by a new part which includes a new tennon and a blade part and locating the new part relative to at least one adjacent blade and securing the new tennon and blade part to the blade being repaired while it is in its located position. The repair ensures that any area of weakness, i.e. where the join has been made, is removed from the area most prone to damage, the root of the tennon, and the location means ensures that the new part can be properly located.

573981

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