Metal working – Method of mechanical manufacture – Impeller making
Reexamination Certificate
2006-02-14
2006-02-14
Edmondson, Lynne R. (Department: 1725)
Metal working
Method of mechanical manufacture
Impeller making
C029S889000, C029S889700, C228S119000, C219S137200
Reexamination Certificate
active
06996906
ABSTRACT:
A method of repairing a turbine blade and the blade repaired thereby. The blade comprises a platform that has become bowed as a result of high temperature creep, with the result that the platform has a concave surface and an oppositely-disposed convex surface. The method generally comprises welding the concave surface to build up a weldment on the concave surface, cooling the weldment during which the weldment shrinks, the convex surface becomes flatter, and the concave surface beneath the weldment becomes flatter, and then removing a surface portion of the weldment so as to create a substantially flat weldment surface overlying the substantially straightened concave surface.
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Arney Timothy Lee
Bowden, Jr. Joseph Howell
Grossklaus, Jr. Warren Davis
Roedl Lawrence Joseph
Edmondson Lynne R.
General Electric Company
Hartman Domenica N. S.
Hartman Gary M.
Narciso David L.
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