Welding apparatus with shifting magnetic field

Details Welding apparatus with shifting magnetic field Welding apparatus with shifting magnetic field

1977-05-16

1980-02-26

Goldberg, Elliot A.

Electric heating

Metal heating

By arc

219123, 219137R, B23K 900

Patent

active

041907604

ABSTRACT:
The present invention relates to a welding process and apparatus. More particularly, the invention relates to a welding process and apparatus for performing welding in various positions characterized in that a shifting magnetic field is generated in the vicinity of a molten metal pool to induce an eddy current in the molten metal pool, whereby an electromagnetic driving force is caused to act on the molten metal pool to control the shape of the molten metal pool, and welding is carried out while controlling the shape of the molten metal pool in this manner. According to the welding process and apparatus of the present invention, the welding efficiency can be enhanced irrespective of any welding positions.

REFERENCES:
patent: 379453 (1888-03-01), De Benardos
patent: 1792243 (1931-02-01), Richter
patent: 1854536 (1932-04-01), Wilson
patent: 1869350 (1932-07-01), Lincoln
patent: 2666122 (1954-01-01), Curtin
patent: 2702846 (1955-02-01), Breymeier
patent: 3130294 (1964-04-01), Regnauld
patent: 3320402 (1967-05-01), Cunningham
patent: 3924092 (1975-12-01), Lessmann
patent: 3941974 (1976-03-01), Kano
patent: 4027135 (1977-05-01), Barger

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