Center tracking welder unit with floating reference

Details Center tracking welder unit with floating reference Center tracking welder unit with floating reference

1982-05-07

1984-05-01

Shaw, C. C.

Electric heating

Metal heating

By arc

2191241, B23K 912

Patent

active

044463537

ABSTRACT:
A floating reference voltage is generated in response to the low frequency components of weld current and is utilized in the control of the width of travel of a welding arc back and forth across a gap to be filled with weld metal. The arc current is integrated during each traverse across the gap and this integral is compared with the floating reference so that as the wall of the gap is approached, the direction of travel of the arc will be reversed. Provision is made for avoidance of the effects of "dip transfer".

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