Patent ID: 9085041
Filing Date: 2015-07-21
Classification: B23K

Abstract:
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 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 and while said at least one consumable is in contact with said at least one workpiece.