WELDING PROCESS GAS METAL ARC WELDING - DOUBLE COLD WIRE (GMAW-DCW)

摘要

Patent of a process that consists of a coupling a fixing split clamp to the torch (2) in a injecting device of two cold wires a to a welding torch (14) that is connected to the electrode wire head (12), which is also connected to the welding power source (11) that establishes the electric arc and the weld pool, the two cold wires are boosted by auxiliary heads (13), lead through the conduit (17) until the injector tube (8), which is fastened to the injector tube basis (7) by brake bolts (10) and therefore the injector tube (8) may dislocate horizontally to the welding torch, also enabling the injector tube (8) to make a turn perpendicular to the welding torch, these two movements determine the input angle of the cold wires in relation to the electrode wire (torch wire) and between the two cold wires. The cold wires pass through the contact nozzles (9) which are made of electrolytic copper and they have the function of leading cold wires as close as possible to the electric arc to prevent vibrations and disturbance in the wire.