Patent ID: 9089920
Filing Date: 2015-07-28
Classification: B23K

Abstract:
1. A method for changing a welding process during a welding operation, wherein the change is carried out from a welding process that was conducted to a subsequent welding process during a short circuit between a melting welding wire and a workpiece, wherein the welding process and the subsequent welding process have opposite polarities and the polarities are changed in a polarity reversing procedure, wherein upon detecting the short circuit of the welding process that is conducted, the welding wire is still moved for a defined duration in the movement direction and subsequently stopped, depending on a first threshold value of the welding current of the subsequent welding process, whereupon the welding wire is moved in the opposite direction in order to start the subsequent welding process upon reaching the first threshold value of the welding current, wherein when the welding process has a negative polarity, a changing phase is inserted after the polarity reversing procedure and when the welding process has a positive polarity, the changing phase is inserted before the welding reversing procedure.