Method of multiple gas shielded arc welding

Details Method of multiple gas shielded arc welding Method of multiple gas shielded arc welding

1975-11-19

1977-03-22

Reynolds, Bruce A.

Electric heating

Metal heating

By arc

219 74, B23K 924

Patent

active

040138682

ABSTRACT:
In a method of multiple electrode gas shielded arc welding wherein a plurality of electrodes are arranged along the welding seam line of a piece of metal to be welded and continuous gas shielded arc welding of the piece is accomplished simultaneously by the electrodes, the chemical composition of the electrode wire of the electrode or electrode group for depositing a preceeding layer or layers is selected to differ from that of the electrode wire of another electrode or electrode group for depositing a subsequent layer or layers, whereby the chemical composition of the weld metal made by the preceeding welding operation is brought near to that of the weld metal made by the following welding operation and thus the uniform properties are ensured for welding metals at the respective positions in the weld zone.

REFERENCES:
patent: 2756311 (1956-07-01), Persson et al.
patent: 2868954 (1959-01-01), Skinner et al.
patent: 3007033 (1961-10-01), Newman et al.
patent: 3278720 (1966-10-01), Dixon
patent: 3596051 (1971-07-01), Nomura
patent: 3652823 (1972-03-01), Clemens et al.
patent: 3694620 (1972-09-01), Gleason
patent: 3704358 (1972-11-01), Saito et al.

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