Laser nozzle

Details Laser nozzle Laser nozzle

1991-10-03

1993-06-15

Albritton, C. L.

Electric heating

Metal heating

By arc

21912184, B23K 2614

Patent

active

052201490

ABSTRACT:
A laser nozzle has an inner end adapted to be secured to a laser head and an outer end to be disposed adjacent a workpiece. An axial bore extends longitudinally therethrough with an inlet end and an outlet end and provides a passage therethrough for the laser beam and a cutting gas. The bore narrows at a point along its length spaced from the outlet end to define a throat portion in the bore, and at least one auxiliary rectilinear passage extending from the throat portion to the outer end of the nozzle adjacent the outlet end of the bore for passage of cutting gas therethrough. The nozzle, or the cutting head and nozzle, may be rotated to locate the auxiliary passage in a position trailing the laser beam. In another embodiment, a multiplicity of circumferentially spaced auxiliary passages may be opened or closed by a regulator to provide flow of cutting gas through passages which trial the laser beam.

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