Electric heating – Metal heating – By arc
Reexamination Certificate
2006-03-07
2006-03-07
Evans, Geoffrey S. (Department: 1725)
Electric heating
Metal heating
By arc
Reexamination Certificate
active
07009137
ABSTRACT:
A method is provided for repairing Z-notch wear surfaces on low pressure gas turbine engine turbine blades. The method is directed to turbine blades made of superalloy Inconel 713. Powdered Inconel 713 is welded to the Z-notch wear surface by directing an Nd:YAG laser beam upon the material. The laser beam is focused and traverses the wear surface in a stich-like pattern. The method allows Inconel 713 turbine blades to be repaired with the same material in a manner that does not generate cracking in the matrix material.
REFERENCES:
patent: 4155152 (1979-05-01), Cretella et al.
patent: 4285459 (1981-08-01), Baladjanian et al.
patent: 4291448 (1981-09-01), Cretella et al.
patent: 4293338 (1981-10-01), Rose et al.
patent: 4804815 (1989-02-01), Everett
patent: 4822248 (1989-04-01), Wertz et al.
patent: 4878953 (1989-11-01), Saltzman et al.
patent: 4998005 (1991-03-01), Rathi et al.
patent: 5071054 (1991-12-01), Dzugan et al.
patent: 5160822 (1992-11-01), Aleshin
patent: 5211540 (1993-05-01), Evans
patent: 5554837 (1996-09-01), Goodwater et al.
patent: 5606796 (1997-03-01), Fraser
patent: 5622638 (1997-04-01), Schell et al.
patent: 5806751 (1998-09-01), Schaefer et al.
patent: 5889254 (1999-03-01), Jones
patent: 5914059 (1999-06-01), Marcin et al.
patent: 6054672 (2000-04-01), Foster et al.
patent: 6103402 (2000-08-01), Marcin, Jr. et al.
patent: 6154959 (2000-12-01), Goodwater et al.
patent: 6164916 (2000-12-01), Frost et al.
patent: 6173491 (2001-01-01), Goodwater et al.
patent: 6233822 (2001-05-01), Grossklaus, Jr. et al.
patent: 6269540 (2001-08-01), Islam et al.
patent: 6283356 (2001-09-01), Messelling
patent: 6302649 (2001-10-01), Mukira et al.
patent: 6326585 (2001-12-01), Aleshin et al.
patent: 6329630 (2001-12-01), Sato et al.
patent: 6332272 (2001-12-01), Sinnott et al.
patent: 6333484 (2001-12-01), Foster et al.
patent: 6354799 (2002-03-01), Mukira et al.
patent: 6364971 (2002-04-01), Peterson et al.
patent: 6402507 (2002-06-01), Boettger
patent: 2004/0086635 (2004-05-01), Grossklaus et al.
patent: 2004/0133298 (2004-07-01), Toyserkani et al.
patent: 1 249 300 (2002-10-01), None
patent: WO-03/042895 (2003-05-01), None
PCT International Search Report PCT/US2004/009901, Apr. 19, 2005.
Evans Geoffrey S.
Honeywell International , Inc.
Ingrassia Fisher & Lorenz
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