F - Mech Eng,Light,Heat,Weapons – 01 – D
Patent
F - Mech Eng,Light,Heat,Weapons
01
D
26/150
F01D 5/14 (2006.01) F01D 5/00 (2006.01)
Patent
CA 1156441
METHOD AND REPLACEMENT MEMBER FOR REPAIRING A GAS TURBINE ENGINE BLADE MEMBER ABSTRACT OF THE DISCLOSURE A gas turbine engine air cooled blade member which includes a base, an airfoil and a platform therebetween generally extending beyond the airfoil, the airfoil including leading and trailing edge portions at least one of which has an edge chamber extending longitudinally of the airfoil and extending chordwise into the airfoil toward the other edge to a longitudinally extending chamber wall is repaired by removing from the blade member at least one blade segment which comprises an edge portion, a part of the chamber wall, and a part of the platform connected with and extending from the edge portion and connected with the chamber wall. This provides for each edge portion removed a first alignment and bonding surface on the blade member remaining. Such alignment and body suface is cleaned to remove surface oxides. There is provided for use in such a repair method, as a replacement for the blade segment removed, a replacement member of substantially the same type of material and of a size and shape which matches the removed blade segment. The replacement member includes a second alignment and bonding surface which matches the first alignment and bonding surface of the blade segment which it replaces. Thereafter, the matched alignment and bonding surfaces are placed into registry and the replacement member is metallurgically bonded to the blade memeger at such surfaces.
367190
Raeburn Alexander Jr.
Zelahy John W.
Company General Electric
Eckersley Raymond A.
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