Turbine blade repair

Details Turbine blade repair Turbine blade repair

B - Operations, Transporting

23

P

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

Patent

CA 2090754

ABSTRACT OF THE DISCLOSURE "Turbine Blade Repair" A method of repairing a turbine blade (10) comprises removing damaged material (22) from an area (30) to be repaired, applying by welding a layer of a first material in the form of a soft metal (31) such as Inconel and subsequently applying a layer of second material in the form of a hard metal (36) such as Stellite, the blade may then be worked by machining, grinding or polishing to the desired profile (35,40) and subjected to a heat treatment process for stress relief. The repair method enables a fast repair that can be carried out without the blade (10) being removed from the rotor (13) or stator and which is economical in use of materials.

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