Electric heating – Metal heating – By arc
Patent
1998-09-15
2000-04-25
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
148525, 219 761, B23K 2600
Patent
active
060546727
ABSTRACT:
A process is provided for laser welding a nickel or cobalt based superalloy article to minimize cracking by preheating the entire weld area to a ductile temperature, maintaining such temperature during welding and solidification of the weld, with the welding utilizing a powder alloy feed and the speed of the laser controlled to less than 10 inches per minute.
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patent: 5554837 (1996-09-01), Goodwater et al.
patent: 5900170 (1999-05-01), Marcin, Jr. et al.
patent: 5914059 (1999-06-01), Marcin, Jr. et al.
Foster Michael F.
Lovelace Dan L.
Thurston Christopher A.
Updegrove Kevin J.
Bittman Mitchell D.
Chromalloy Gas Turbine Corporation
Evans Geoffrey S.
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