Patent ID: 8242410

Claim:
A welding system for forming a weld between a first work piece and a second work piece, the welding system comprising: a first welding machine comprising: a first power source coupled to a first welding electrode, the first power source including a first wave form generator providing a first welding current with a first wave form at an output terminal of the first power source, wherein said first waveform generator generates the first wave form and controls a pulse width modulator circuit of the first power source to determine the current operation of the first power source; and a first wire feeder directing the first welding electrode toward a weld joint at a first wire feed speed; a second welding machine comprising: a second power source coupled to a second welding electrode, the second power source including a second wave form generator providing a second welding current with a second wave form at an output terminal of the second power source, wherein said second waveform generator generates the second wave form and controls a pulse width modulator circuit of the second power source to determine the current operation of the second power source; and a second wire feeder directing the second welding electrode toward the weld joint at a second wire feed speed; a synchronizing controller operatively coupled with the first and second power sources to synchronize the first and second wave form generators to provide a controlled wave form phase angle between the first and second wave forms.