YAG laser induced arc filler wire composite welding method...

Details YAG laser induced arc filler wire composite welding method... YAG laser induced arc filler wire composite welding method...

2003-04-01

2008-08-05

Kerns, Kevin P (Department: 1793)

Electric heating

Metal heating

By arc

C219S121640, C219S121630

Reexamination Certificate

active

07408130

ABSTRACT:
A combined welding method with a filler wire using both a YAG laser and an electric arc, and a combined welding device with a filler wire using both a YAG laser and an electric arc. The welding is performed by directing a laser focus of a YAG laser on base materials and for welding in the vicinity of the focus by a filler wire, connecting a power source for applying a voltage to the filler wire between the filler wire and the base materials for welding, irradiating a YAG laser on the base materials for welding in the connecting condition, whereby an arc is induced to the filler wire by a plume (plasma-activated gas and the metal vapor), and holding the plume generated by YAG laser inside and outside of a keyhole.

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