Underwater laser processing apparatus and underwater laser...

Details Underwater laser processing apparatus and underwater laser... Underwater laser processing apparatus and underwater laser...

2005-09-20

2005-09-20

Johnson, Jonathan (Department: 1725)

Electric heating

Metal heating

By arc

Reexamination Certificate

active

06946618

ABSTRACT:
An underwater laser processing apparatus includes an optical unit and a nozzle. The optical unit irradiates a condensed laser beam generated by a YAG laser oscillator to a certain point on a underwater workpiece. The nozzle has a gas exit for supplying a gas to the certain point. In the nozzle, an area surrounding the gas exit extends to the surface of the workpiece. This area keeps the supplied gas between the nozzle and the workpiece to improve the underwater laser process.

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