Laser cutting method including piercing a work piece with a movi

Details Laser cutting method including piercing a work piece with a movi Laser cutting method including piercing a work piece with a movi

1997-01-21

1998-06-23

Walberg, Teresa J.

Electric heating

Metal heating

By arc

21912171, 219 1472, 21912184, B23K 2614

Patent

active

057708339

ABSTRACT:
A laser processing method locates a processing head at a piercing start position so that the focal point of the laser beam is positioned above the workpiece surface and offset from a point right above the intended piercing point on the workpiece. While conducting irradiation with the laser beam and jetting of an assist gas, the processing head located at the piercing start position is moved simultaneously both in a direction parallel to the workpiece surface and a direction perpendicular to the workpiece surface such that the focal point approaches the piercing point.

REFERENCES:
patent: 5444211 (1995-08-01), Nakata et al.
patent: 5607606 (1997-03-01), Mori et al.

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