Electric heating – Metal heating – By arc
Patent
1977-07-01
1979-02-27
Truhe, J. V.
Electric heating
Metal heating
By arc
219 7616, B23K 900
Patent
active
041420900
ABSTRACT:
Plasma MIG welding in which a plasma flow is generated between a non-consumable electrode and a workpiece, and a consumable electrode is fed through such plasma flow toward the workpiece to establish a MIG arc between the same. The current intensity in the plasma flow is increased by applying additional current thereto from an annular auxiliary non-consumable electrode surrounding the plasma flow and positioned between the primary non-consumable electrode and the workpiece.
REFERENCES:
patent: 4058698 (1977-11-01), Bykhovsky
Plasma-MIG Welding, B. Pinfold, Dec. 1974, pp. 417-419.
Essers Wilhelmus G.
Jelmorini Gerardus
Tichelaar Gerrit W.
Bell Fred E.
Briody Thomas A.
Schneider Rolf E.
Truhe J. V.
U.S. Philips Corporation
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