Laser processor

Details Laser processor Laser processor

1990-07-20

1991-04-23

Albritton, C. L.

Electric heating

Metal heating

By arc

21912183, B23K 2600

Patent

active

050102303

ABSTRACT:
A laser processor provided with a pulse oscillating laser light source, an exciter for exciting the laser light source on a trigger signal for pusle oscillation, a beam quality adjusting device for adjusting a beam quality as monitoring the pulse-oscillated laser light partly at least, a working apparatus for exposing or processing a workpiece by projecting the adjusted laser light thereon. The laser light from a laser light source side is intercepted by a shutter while it is not used on a sequence on a working apparatus side, thereby operating the laser light source for self-oscillation at a low frequency of 1 to 2 hz, for example; the laser light source is then operated for self-oscillation at a frequency higher than that with the shutter closed therefor when a quality abnormal signal is generated from an abnormal detector upon detection of a beam quality coming outside a standard.

REFERENCES:
patent: 4087672 (1978-05-01), Yi
patent: 4769523 (1988-09-01), Tanimoto e tal.
patent: 4812641 (1989-03-01), Ortiz, Jr.
patent: 4866243 (1989-09-01), Sakane et al.

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