Laser beam machining apparatus

Details Laser beam machining apparatus Laser beam machining apparatus

2005-05-17

2005-05-17

Heinrich, Samuel M. (Department: 1725)

Electric heating

Metal heating

By arc

C219S121830, C219S121840

Reexamination Certificate

active

06894248

ABSTRACT:
A laser beam machining apparatus includes a laser oscillator, a machining head which that machines a workpiece using the laser beam. An optical duct has an optical system to guide the laser beam from the laser oscillator to the machining head. Purge gas is supplied into the optical duct from a purge gas supply port, and the purge gas is output from a purge gas exhaust port. A detector detects presence of undesired gas in the optical duct.

REFERENCES:
patent: 5675070 (1997-10-01), Gelperin
patent: 5904869 (1999-05-01), Saito et al.
patent: 6159659 (2000-12-01), Gelbart
patent: 404101648 (1992-04-01), None
patent: 5-8079 (1993-01-01), None
patent: 5-212575 (1993-08-01), None
patent: 6-17120 (1994-01-01), None
patent: 10-34372 (2003-02-01), None

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