Method of controlling a weaving path of a welding torch in arc w

Details Method of controlling a weaving path of a welding torch in arc w Method of controlling a weaving path of a welding torch in arc w

1982-05-04

1983-11-22

Shaw, C. C.

Electric heating

Metal heating

By arc

21912434, 21912512, B23K 912

Patent

active

044171269

ABSTRACT:
A method for controlling a weaving path of a welding torch to trace a welding line in consumable electrode arc welding, including: detecting in a rightward weaving stroke of weaving motion a welding current level IL.sub.1 at the left end position of the weaving motion and a minimum current level IL.sub.2 during the period of the rightward weaving stroke and in a leftward weaving stroke of weaving a welding current level IR.sub.1 at the right end position of the weaving motion and a minimum current level IR.sub.2 during the period of the leftward weaving stroke; calculating the values of differential current (IL.sub.1 -IL.sub.2) and (IR.sub.1 -IR.sub.2) in the rightward and leftward weaving strokes, respectively; comparing and computing a disparity, if any, between the differential current values; and shifting the position of a median point of weaving motion according to the extent of the disparity in the differential current values.

REFERENCES:
patent: 4151395 (1979-04-01), Kushner et al.
patent: 4302655 (1981-11-01), Edling
patent: 4316075 (1982-02-01), Isoya et al.

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