Method and device for plasma-MIG-welding

Details Method and device for plasma-MIG-welding Method and device for plasma-MIG-welding

1977-03-17

1979-04-03

Reynolds, Bruce A.

Electric heating

Metal heating

By arc

219 75, 219 7616, B23K 900

Patent

active

041479173

ABSTRACT:
Plasma-MIG welding involving the use of two parallel consumable electrodes axially introduced into a plasma arc initiated by a non-consumable electrode and out through a nozzle. All three electrodes are maintained at a positive polarity whereby a substantial increase of the deposition rate is achieved, without rotation of the MIG-arcs and without exceeding the critical current intensity.

REFERENCES:
patent: 3274371 (1966-09-01), Marz et al.
patent: 3312566 (1967-04-01), Winzeler et al.
patent: 3746833 (1973-07-01), Ujiie
patent: 3947607 (1976-03-01), Gazzard et al.
"Plasma Mig Welding" 12-1974 by Essers et al. #46 in Welding & Metal Fabrication.

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