Method of repair of thin wall housings

Details Method of repair of thin wall housings Method of repair of thin wall housings

2008-05-06

2008-05-06

Stoner, Kiley (Department: 1793)

Metal fusion bonding

Process

Repairing, restoring, or renewing product for reuse

C427S140000

Reexamination Certificate

active

07367488

ABSTRACT:
The present invention provides methods and materials for use in repairing a worn component having thin walls. One kind of thin wall may be the wall of a cylindrical portion of the component where such wall has a worn inner surface and an opposite outer surface. The method includes the steps of preparing the outer surface of the component for cold spraying; cold spraying material onto the outer surface so as to form a strengthening coating; reaming the inner surface so as to create a repair surface with a repair diameter greater than the inner diameter; and installing an insert on the repair surface. The thickness of the coating is selected so as to impart a desired degree of strength to the wall. The method allows the repair of expensive aluminum castings that would otherwise, because of the thin wall construction, not be suitable for repair.

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