Submerged laser beam irradiation equipment

Details Submerged laser beam irradiation equipment Submerged laser beam irradiation equipment

1996-11-12

1999-08-17

Mills, Gregory

Electric heating

Metal heating

By arc

2191216, 21912175, B23K 2600

Patent

active

059389540

ABSTRACT:
A submerged laser beam irradiation equipment provides a high quality submerged laser beam processing of a submerged workpiece using only a small amount of a gas. The submerged laser beam irradiation equipment has: a focus lens for focusing a laser beam; a mirror tube which houses the lens; a first nozzle operating to cover the front end of the mirror tube in an irradiating direction of the laser beam; a skirt portion provided at the front end of the first nozzle for preventing water intrusion thereinto; and a shutter mechanism operable to open and close and provided between said skirt portion and said mirror tube for preventing water intrusion into said mirror tube.

REFERENCES:
patent: 4151393 (1979-04-01), Fenneman et al.
patent: 4491717 (1985-01-01), Geffroy et al.
patent: 5356081 (1994-10-01), Sellar

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