Method of repairing heat resistant alloy parts

Details Method of repairing heat resistant alloy parts Method of repairing heat resistant alloy parts

1985-05-13

1987-04-07

Jordan, M.

Metal fusion bonding

Process

Repairing, restoring, or renewing product for reuse

228221, 228206, B23K 2500

Patent

active

046553835

ABSTRACT:
The instant invention describes a method of repairing heat-resistant alloy parts which have been cracked or otherwise damaged due to exposure of combustion gases from a turbojet engine. The method includes chemically cleaning the surface of the part to remove the layer of contaminants and subjecting the part to a thermochemical treatment to thoroughly clean the cracks and other narrow, damaged areas. A diffusion brazing process is then utilized to fill the cracks or damaged areas.

REFERENCES:
patent: 3291640 (1966-12-01), Livingston
patent: 3849851 (1974-11-01), Kaltz
patent: 4008844 (1977-02-01), Duvall et al.
patent: 4050133 (1977-09-01), Cretella et al.
patent: 4078977 (1978-03-01), Fountain
patent: 4098450 (1978-07-01), Keller et al.
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patent: 4324594 (1982-04-01), Chasteen
patent: 4381944 (1983-05-01), Smith et al.
patent: 4493451 (1985-01-01), Clark
Turbine Stator Parts Repair by Diffusion Brazing, by Honnorat & Lesgourgu SNECMA 1981.
Chemical Abstract 88: 40722k.

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