Heat treating using a laser

Details Heat treating using a laser Heat treating using a laser

1978-10-05

1981-12-08

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LM, 219121EB, 219121EM, B23K 2600

Patent

active

043049788

ABSTRACT:
A method and apparatus are disclosed utilizing a laser for heat treating a transformation hardenable workpiece. Sufficiently high laser power densities are provided at the workpiece surface to cause an incandescent reaction with the workpiece, but incandescent reaction is limited to a sufficiently short period of time to prevent any substantial melting of the workpiece. Pre-conditioning the workpiece prior to heat treatment, squelching the workpiece with a gaseous jet, and techniques for work-hardening cylindrical workpieces are also disclosed.

REFERENCES:
patent: 687612 (1901-11-01), Davis
patent: 2060985 (1936-11-01), Frickey
patent: 2194909 (1940-03-01), Moss et al.
patent: 4093842 (1978-06-01), Scott
patent: 4151014 (1979-04-01), Charschan et al.

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