Electric heating – Metal heating – By arc
Patent
1986-08-12
1987-09-08
Albritton, C. L.
Electric heating
Metal heating
By arc
219121LQ, 350613, 350614, 350620, 372101, B23K 2600
Patent
active
046925830
ABSTRACT:
A surface heat-treating apparatus which focuses laser beam onto a surface of a workpiece for heat-treating the same comprises a composite cylindrical segment mirror and a cylindrical mirror provided in a subsequent stage thereof. The composite mirror is made of two cylindrical segment mirrors joined together with a predetermined angle in a V-shaped manner so that the laser beam reflected by the two component cylindrical segment mirrors of the composite mirror is transmitted to the cylindrical mirror in a manner reversed with respect to the lengthwise and widthwise directions of the composite cylindrical segment mirror and a heat-treating area of a rectangular configuration is thereby provided on the workpiece.
REFERENCES:
patent: 4195913 (1980-04-01), Dourte et al.
"Laser Machining Technology", published in Japan, Aug., 1982 by Japanese Welding Institute.
Aoki Hidekazu
Kimura Seiichiro
Albritton C. L.
Kabushiki Kaisha Toshiba
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