Method and apparatus for GMAW welding

Details Method and apparatus for GMAW welding Method and apparatus for GMAW welding

1991-08-02

1992-10-13

Shaw, Clifford C.

Electric heating

Metal heating

By arc

219 74, 2191372, B23K 9173

Patent

active

051553309

ABSTRACT:
A method and apparatus of welding along a pass line on a steel workpiece, which method and apparatus comprises simultaneously feeding two welding wires in generally parallel relationship toward a workpiece with extended welding wires generally intersecting the workpiece at individual points spaced from each other a distance in the range about 3/16 inch to about 3/8 inch; then creating a separate arc between each of the wires and the workpiece; passing a single protective envelope of shielding gas axially along two welding wires simultaneously and around said two separate arcs extending between welding wires and the workpiece; and, causing relative movement between the two gas shielded welding wires and the workpiece in the direction corresponding to the desired pass line on the workpiece.

REFERENCES:
patent: 2868956 (1959-01-01), Lobosco
patent: 3007033 (1961-10-01), Newman et al.
patent: 3062950 (1962-11-01), Chyle
patent: 3278720 (1966-10-01), Dixon
patent: 3751628 (1973-08-01), Scherl
patent: 4058700 (1977-11-01), Ito et al.

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