Automatic groove tracing control method for arc welding

Details Automatic groove tracing control method for arc welding Automatic groove tracing control method for arc welding

1985-07-01

1987-01-27

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21912512, B23K 912

Patent

active

046395733

ABSTRACT:
A control method in which during arc welding a welding torch is moved in its axial direction so as to maintain the arc current or welding current at a predetermined value and thereby maintain the arc length constant and the torch is caused to weave in the width direction with respect to the direction of welding while changing the direction of the weaving each time the axial displacement or position of the torch attains a predetermined value. The weaving speed is decreased when the torch approaches each turning point of the weaving and the gain of the speed control for the torch axial movement is increased when the torch approaches each turning point in the course of its movement from the central area toward the turning point during each weaving cycle.

REFERENCES:
patent: 4034184 (1977-07-01), Fernicola
patent: 4394559 (1983-07-01), Nomura et al.

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