Method of multiple gas shielded arc welding

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

B - Operations, Transporting

23

K

327/47

B23K 9/16 (2006.01) B23K 9/173 (2006.01) B23K 35/30 (2006.01)

Patent

CA 1038459

Abstract of the Disclosure 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 the 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 proceeding 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 preceed- ing 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 the welding metals at the respective positions in the weld zone.

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