Hybrid Hot-Wire And Arc Welding Method And System Using Offset Positioning

摘要

A method and system to weld or join coated workpieces using an arc welding operation and at least one hot wire, resistance heated wire. Each of the arc welding and hot wire operation are directed to the same puddle. However, the arc welding operation is offset out of the joint from the hot wire operation, where the hot wire is directed into the joint.

主权项

1. A welding system, comprising:
an arc generating power supply which provides an arc generation signal to an electrode to generate an arc between said electrode and at least one workpiece so as to create a molten puddle on said at least one workpiece, where said arc generation signal comprises a plurality of current pulses; a hot wire power supply which generates a heating signal to heat at least one consumable such that said consumable melts in said molten puddle when said consumable is in contact with said molten puddle, where said heating signal comprises a plurality of heating current pulses; and a controller which synchronizes both of said arc generation signal and said heating signal such that a constant phase angle is maintained between said current pulses of said arc generation signal and said heating current pulses, wherein each of said electrode and said consumable are moved in a travel direction relative to said at least one workpiece, and where said electrode is offset from consumable in a direction normal to said travel direction; and wherein at least one of said hot wire power supply and controller monitors a feedback related to said heating signal and compares said feedback to an arc generation threshold and said hot wire power supply turns off said heating signal when said feedback reaches said arc generation threshold level.