Laser cutting machine

Details Laser cutting machine Laser cutting machine

1994-09-27

1997-06-10

Walberg, Teresa J.

Electric heating

Metal heating

By arc

21912174, 21912178, 21912182, B23K 2600

Patent

active

056372434

ABSTRACT:
A laser cutting machine having a cutting head that is positionable in X-, Y- and Z- directions and which comprises a laser oscillator for supplying a beam via a plurality of mirrors to the cutting head and onto a workpiece mounted on a flat table surface with rising rollers or a retractable rotatable support in the table. The locations and center-of-gravity positions of the machine components are disposed for optimum maneuverability and balance. The plurality of mirrors in the optical system have a first bend mirror, that is a precision-adjustable, circular-polarizing mirror, and a plurality of subsequent bend mirrors that are disposed to counterbalance any resulting phase shift amounts. The subsequent mirrors can be ES or PS coated mirrors and can be accompanied by convex, concave, collimating, etc. mirrors and lenses as needed.

REFERENCES:
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patent: 4775289 (1988-10-01), Kazerooni
patent: 4808791 (1989-02-01), Puozzo et al.
patent: 4910378 (1990-03-01), Arai
patent: 5128512 (1992-07-01), Seki
patent: 5192848 (1993-03-01), Miyakawa et al.

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