Apparatus for effecting treatment of metal workpieces by means o

Details Apparatus for effecting treatment of metal workpieces by means o Apparatus for effecting treatment of metal workpieces by means o

1985-08-20

1987-05-12

Paschall, M. H.

Electric heating

Metal heating

By arc

219121LT, 219121LQ, 219121LP, B23K 2600

Patent

active

046652981

ABSTRACT:
The apparatus comprises a laser radiation generator which directs a laser beam onto a workpiece to be treated, and a reflector capable of re-directing onto the workpiece undergoing treatment the radiation reflected and/or scattered by the piece. The reflector is formed in such a way as to cause the radiation reflected and scattered by the piece to be re-focused in a zone that is different from but adjacent the zone struck directly by the radiation emitted by the laser generator. In this way a pre-heating or a post-heating of the zone of the workpiece struck directly by the radiation emitted by the generator may be effected.

REFERENCES:
patent: 3460930 (1969-08-01), Pityo
patent: 3603766 (1969-09-01), Kino et al.
patent: 3621198 (1971-11-01), Herbrich
patent: 3757078 (1973-09-01), Conti et al.
patent: 4480168 (1984-10-01), Cielo et al.

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