Electric heating – Metal heating – By arc
Patent
1982-03-17
1983-09-06
Albritton, C. L.
Electric heating
Metal heating
By arc
219121LN, 219121FS, 219121LY, B23K 2700
Patent
active
044031343
ABSTRACT:
A device for cutting workpieces, for example at a work station or place over which the workpiece is movable comprises a laser beam device for directing a laser beam at the workpiece at the workpiece station and means for directing a fluid coolant against the workpiece in the vicinity of the laser beam. The fluid coolant advantageously comprises a liquid such as water which is directed to the workpiece, preferably to intersect the laser beam at the intersection of the axis of the laser beam and the workpiece. In accordance with the inventive method, a quantity of coolant is applied to the workpiece and in accordance with the type of cutting that is taking place, this quantity changes for example if a sharp curvature or a discontinually continuity of cutting takes place in order to maintain the heat zone at a satisfactory temperature. The intensity of cooling may be made a function of the shape of the track followed by the workpiece and may be varied by a control device as to amount of coolant.
REFERENCES:
patent: 3679863 (1972-07-01), Houldcroft et al.
patent: 4201905 (1980-05-01), Clark et al.
patent: 4324972 (1982-04-01), Furrer et al.
patent: 4335296 (1982-01-01), Bredow
Albritton C. L.
Trumpf GmbH & Co.
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