Control for welding system

Details Control for welding system Control for welding system

1985-04-08

1986-08-26

Shaw, Clifford C.

Electric heating

Metal heating

By arc

21913031, 219137PS, 21913771, B23K 910

Patent

active

046084827

ABSTRACT:
An improved welding power supply control circuit is disclosed. The control circuit, which incorporates a microprocessor, simultaneously adjusts the power supplied to a welding electrode and the speed of the electrode, in accordance with a selected power/speed relationship table or curve. The power/speed relationship of a selected table can be further modified manually, as by a potentiometer, to optimize the weld. Feedback circuitry senses the frequency of the weld and the weld voltage, to regulate the power and to modify the slope of the voltage/current output curve, respectively.

REFERENCES:
patent: 3581051 (1971-05-01), Brown
patent: 3968341 (1976-07-01), Manning
patent: 4051344 (1977-09-01), Robbins
patent: 4430551 (1984-02-01), Toth
patent: 4510373 (1985-04-01), Cox et al.
A. F. Manz, "The `One Knob Welder`," Sep. 1968, pp. 720-725, Welding Journal.

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