Method of repairing surface defects using metallic filler materi

Details Method of repairing surface defects using metallic filler materi Method of repairing surface defects using metallic filler materi

1975-01-06

1977-02-22

Baldwin, Robert D.

Metal fusion bonding

Process

Repairing, restoring, or renewing product for reuse

228194, 228198, B23K 3102

Patent

active

040088448

ABSTRACT:
In filling voids in or between metallic articles, as in the repair of cracks or other surface defects in castings, the void is filled with a powder mix which upon heat treatment fills the void. The filler powder mix is a blend of at least two distinct powder components and in terms of overall composition preferably corresponds to that of article being repaired. The components comprising the mix are selected to provide a transient liquid phase and isothermal resolidification of a portion of the mix at the temperature below the article melting point. A subsequent heat treatment is preferably utilized for homogenization.

REFERENCES:
patent: 3487530 (1970-01-01), Ely
patent: 3574924 (1971-04-01), Dibble
patent: 3632319 (1972-01-01), Hoppin et al.
patent: 3678570 (1972-07-01), Paulonis et al.

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