Laser machining method

Details Laser machining method Laser machining method

1997-12-23

1999-08-17

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

21912161, 2191217, 21912171, 264482, B23K 2600

Patent

active

059390107

ABSTRACT:
In the present invention, a laser beam with a prespecified oscillation frequency is divided into the arbitrary number of pulses to be irradiated to all holes in an area, and this step is repeated until the irradiation reaches a desired number of pulses, whereby an interactive time can be decided according to the number of divided pulses and a cooling period of time can be obtained, and also the number of pulses per one division is set to be a plurality of pulses, which allows an etching rate to be increased, so that the number of pulses required for machining can be reduced as compared to a case where a laser is irradiated to all the holes pulse by pulse.

REFERENCES:
patent: 3594261 (1971-07-01), Broerman
patent: 3790744 (1974-02-01), Bowen
patent: 5688463 (1997-11-01), Robichaud et al.
patent: 5843363 (1998-12-01), Mitwalsky et al.

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