Machining method and apparatus

Details Machining method and apparatus Machining method and apparatus

1989-04-21

1990-08-28

Albritton, C. L.

Electric heating

Metal heating

By arc

21912169, 21912162, 21912182, B23K 2600

Patent

active

049527894

ABSTRACT:
A method of machining a workpiece at a plurality of working positions, employing a pulsed laser under external control, comprises effecting continuous relative movement of the workpiece and the laser the rate of movement being synchronized with the laser firing so that on successive laser pulses the laser beam is aligned with different work positions on the workpiece. Apparatus for machining a workpiece according to this method comprises a mechanism for effecting continuous relative movement of the workpiece and a pulsed laser operable under external control, a position transducer to determine the relative positioning of the workpiece and the laser, and a closed feedback control loop to ensure that each time the laser is pulsed it is aligned with a predetermined work position on the workpiece, the rate of movement being similar to the rated pulse repetition rate where possible.

REFERENCES:
patent: 4218606 (1980-08-01), Whitman, III
patent: 4240448 (1980-12-01), Heitmann et al.
patent: 4249545 (1981-02-01), Gretz et al.
patent: 4297559 (1981-10-01), Whitman, III
patent: 4720619 (1988-01-01), Mattei et al.

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