Metal fusion bonding – Process – Repairing – restoring – or renewing product for reuse
Patent
1988-09-09
1991-08-20
Lechert, Jr., Stephen J.
Metal fusion bonding
Process
Repairing, restoring, or renewing product for reuse
228198, 228248, 419 9, 419 46, G23K 3102
Patent
active
050407180
ABSTRACT:
A method of repairing damages in a superalloy component is disclosed wherein existing brazed joints and protective coatings are not harmed. The method entails the use of a silicon-free metal mixture comprising (i) a low melting alloy having a liquidus below the temperature to be used to deposit the metal mixture, (ii) an alloy melting above about 2100.degree. F., and (iii) optionally nickel. The resultant repair has a solidus temperature of at least 1950.degree. F., preferably at least 2000.degree..
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Iovene Michael A.
Lee Jack W.
Miller Jule A.
Avco Corporation
Lechert Jr. Stephen J.
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