Laser cutting of materials with plural beams

Details Laser cutting of materials with plural beams Laser cutting of materials with plural beams

1996-08-05

1998-03-17

Evans, Geoffrey S.

Electric heating

Metal heating

By arc

21912175, 21912177, 21912184, B23K 2606

Patent

active

057289930

ABSTRACT:
An apparatus for cutting a workpiece comprises optical means located in a single cutting head for splitting a beam of laser energy into two separate beams. The cutting head includes an inlet for oxygen under pressure and a nozzle for the outlet of the oxygen. At least one split beam is focused at a location above the surface of the workpiece such that when in use the area on the surface of the workpiece impinged by the split beam is greater than the area being impinged upon by the oxygen when leaving the nozzle.

REFERENCES:
patent: 3604890 (1971-09-01), Mullaney
patent: 5103073 (1992-04-01), Danilov et al.
patent: 5463200 (1995-10-01), James et al.
patent: 5571429 (1996-11-01), Smith et al.

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