Two electrode welding with different currents supplied to the el

Details Two electrode welding with different currents supplied to the el Two electrode welding with different currents supplied to the el

1981-11-19

1984-03-13

Shaw, C. C.

Electric heating

Metal heating

By arc

219137PS, B23K 909

Patent

active

044369824

ABSTRACT:
In a two electrode welding method wherein welding is carried out by means of arcs struck between two electrodes and a parent metal, the two electrodes being located in side-by-side, spaced-apart relation in a direction in which the welding surface advances and movable relative to the parent metal, a portion of the parent metal is preheated by the arc struck between the leading electrode and the parent metal, and a preheated portion is melted by the heat of the arc struck between the trailing electrode and the parent metal when the former has moved to a position above the preheated portion of the latter to provide a deposited metal. The method has particular utility in applications where metal of high heat conductivity, such as copper, is welded.

REFERENCES:
patent: 3549857 (1970-12-01), Needham et al.
patent: 3627974 (1971-12-01), Normando et al.

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