Electric heating – Metal heating – By arc
Patent
1997-08-22
2000-05-09
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
21912163, B23K 2612, B23K 2614
Patent
active
06060686&
ABSTRACT:
A nozzle for delivering a laser beam to a workpiece under water includes a hollow plenum having an axially spaced apart inlet and outlet, with a gas port disposed therebetween. The laser beam is delivered through the inlet and outlet toward a localized melting zone on the workpiece. A pressurized cover gas is delivered into the gas port for discharge through the outlet to cover the melting zone. The outlet is sized to discharge the gas as a jet for opposing pressure of the water to locally exclude the water at the melting zone.
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"Development of Underwater Welding with high power YAG laser" by Kojima et al., Published in Ishikawajima--Harima Engineering Review (Jul. 1997), vol. 37, No. 4, p.303-308.
Translation of "Development of Underwater Welding with high power YAG Laser" by Kojima et al., Aug. 1998.
Evans Geoffrey S.
General Electric Company
Snyder Marvin
Stoner Douglas E.
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