Laser cutting with chemical reaction assist

Details Laser cutting with chemical reaction assist Laser cutting with chemical reaction assist

1991-04-08

1992-11-17

Albritton, C. L.

Electric heating

Metal heating

By arc

21912184, 21912167, B23K 2600

Patent

active

051645670

ABSTRACT:
A method for cutting with a laser beam where an oxygen-hydrocarbon reaction is used to provide auxiliary energy to a metal workpiece to supplement the energy supplied by the laser. Oxygen is supplied to the laser focus point on the workpiece by a nozzle through which the laser beam also passes. A liquid hydrocarbon is supplied by coating the workpiece along the cutting path with the hydrocarbon prior to laser irradiation or by spraying a stream of hydrocarbon through a nozzle aimed at a point on the cutting path which is just ahead of the focus point during irradiation.

REFERENCES:
patent: 4689467 (1987-08-01), Inoue
C. S. Lee et al., "Parametric Studies of Pulsed-Laser Cutting of Thin Metal Plates", J. Appl. Phys. 58(3), pp. 1339-1343 (Aug. 1, 1985).
W. W. Duley, Laser Processing and Analysis of Materials, (Plenum Press, New York and London), p. 132.

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