Workpiece monitoring means for electric discharge working appara

Details Workpiece monitoring means for electric discharge working appara Workpiece monitoring means for electric discharge working appara

1979-08-14

1982-09-07

Shaw, C. C.

Electric heating

Metal heating

By arc

21913021, 21913031, 21913051, 219 69C, B23K 910

Patent

active

043485782

ABSTRACT:
An automatic arc welding machine having a welding torch adapted to be placed against a workpiece and a monitoring sensor such as an image taking tube for sensing the workpiece. The operation of the sensor is so controlled that it is operated when the welding current to the torch is interrupted or decreased so that any effect of welding arc on the image taking tube can be avoided.

REFERENCES:
patent: 3609281 (1971-09-01), Kauffman
patent: 4021635 (1977-05-01), Losey et al.
patent: 4170727 (1979-10-01), Wilkins

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