Enhanced weldability for high strength cast and wrought...

Details Enhanced weldability for high strength cast and wrought... Enhanced weldability for high strength cast and wrought...

2006-06-05

2010-12-21

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Impeller making

C029S402010, C029S402040, C029S402060, C029S402070, C148S555000, C148S556000, C148S675000, C148S677000

Reexamination Certificate

active

07854064

ABSTRACT:
A method for repairing a turbine engine component comprises the steps of providing a turbine engine component formed from a nickel-based superalloy, removing any defects from the turbine engine component, the removing step comprising subjecting the turbine engine component to a solutioning heat treatment using a heating rate in the range of from 29 degrees Fahrenheit/minute to approximately 40 degrees Fahrenheit/minute as the component passes through a temperature in the range of from 1100 degrees Fahrenheit to 1600 degrees Fahrenheit, and welding the turbine engine component to effect the repair. A deliberately slow post-solution treatment cooling rate is used to substantially prevent weld cracks.

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