Hot-wire arc welding apparatus

Details Hot-wire arc welding apparatus Hot-wire arc welding apparatus

1983-01-05

1984-08-21

Shaw, C. C.

Electric heating

Metal heating

By arc

2191305, 219137PS, B23K 910

Patent

active

044671768

ABSTRACT:
A hot-wire arc welding apparatus comprises a non-expendable electrode, means for supplying a current to initiate an arc between the nonexpendable electrode and a workpiece, an arc current control means for controlling the current from the supplying means, a wire feed means for feeding a filler wire into the arc, a wire feed control means for controlling the wire feed means to feed the filler wire at a given rate of feed, a voltage applying means for applying a voltage between the filler wire and the workpiece, a wire voltage control means for controlling the voltage from the voltage applying means, and a reference voltage generator for generating an output voltage which increases gradually or incrementally with time, each of the arc current control means, the wire feed control means, and the wire voltage control means being connected to the reference voltage generator and responsive to the output voltage therefrom for controlling the operation thereof. A delay circuit such as an integrator may be connected between the reference voltage generator and the wire feed control means for applying a delayed output voltage to the latter.

REFERENCES:
patent: 3019329 (1962-01-01), Zeller
patent: 3584185 (1971-06-01), Mann et al.
patent: 3689734 (1972-09-01), Burley et al.

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