Stock material or miscellaneous articles – All metal or with adjacent metals – Composite; i.e. – plural – adjacent – spatially distinct metal...
Reexamination Certificate
2006-02-07
2006-02-07
Koehler, Robert R. (Department: 1775)
Stock material or miscellaneous articles
All metal or with adjacent metals
Composite; i.e., plural, adjacent, spatially distinct metal...
C428S666000, C428S667000, C428S678000, C428S686000, C428S926000, C428S934000, C029S889100, C219S076130, C219S076160, C219S136000, C228S119000, C228S196000, C228S197000, C228S218000, C228S234100, C228S262300, C228S262400, C228S262600
Reexamination Certificate
active
06994920
ABSTRACT:
A fusion welding method is provided for fusion welding at juxtaposed interface surfaces a first member, for example made of a first metal based on at least one of Ru, Rh, Pd, and Pt, with a second member made of a second metal, for example a high temperature alloy based on at least one of Fe, Co, and Ni, including at least one identified element, for example Al, that can form a continuous layer of a brittle intermetallic compound with the first metal that is free of such element. With the interface surfaces disposed in contact, energy is generated at the interface surfaces in a combination of an amount and for a first time selected to be sufficient to heat the interface surfaces to a fusion welding temperature. However, the first time is less than a second time that enables formation at the fusion welding temperature of the continuous layer of the brittle intermetallic compound at the interface surfaces. A welded article is provided with a fusion weld free of such continuous layer of the brittle intermetallic compound.
REFERENCES:
patent: 4305697 (1981-12-01), Cohen et al.
patent: 4657171 (1987-04-01), Robins
patent: 4808055 (1989-02-01), Wertz et al.
patent: 5183390 (1993-02-01), Amos
patent: 5794338 (1998-08-01), Bowden, Jr. et al.
patent: 6042880 (2000-03-01), Rigney et al.
patent: 6084196 (2000-07-01), Flowers et al.
patent: 6384365 (2002-05-01), Seth et al.
patent: 6575702 (2003-06-01), Jackson et al.
patent: 6610962 (2003-08-01), Warren et al.
patent: 2003/0082048 (2003-05-01), Jackson et al.
patent: 1018388 (2000-07-01), None
patent: 1319462 (2004-05-01), None
patent: 1416063 (2004-05-01), None
General Electric Company
Koehler Robert R.
Sachs Lee H.
Whitlow Janice B.
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