Metal treatment – Process of modifying or maintaining internal physical... – With vibration
Reexamination Certificate
2005-07-12
2005-07-12
Ip, Sikyin (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
With vibration
C148S512000, C148S516000, C148S522000, C148S524000
Reexamination Certificate
active
06916387
ABSTRACT:
A method of repairing a void on a nickel or cobalt base superalloy investment casting by vibrating the casting for a time before repairing the void, vibrating the casting while filling the void wherein the void is filled by repeatedly making incremental weld deposits of a superalloy filler material in the void using pulsed gas tungsten arc welding, and impinging each incremental deposit with a cooling gas after each incremental weld deposit is made and before the next incremental weld deposit is made, and vibrating the casting for a time after the void is filled.
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Eckert Seamans Cherin & Mellot LLC
Howmet Corporation
Ip Sikyin
Timmer Edward J.
Topolosky Gary P.
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