Key techniques for the soft-switching high-speed twin arc pulse GMAW welding system

The high-speed twin arc pulse GMAW welding technology possesses the advantages of high efficiency, high quality and automatization, and is paid much more attention to nowadays. Based on the systematic analysis of the arc pattern, globular transfer mode and molten pool of the twin arc pulse GMAW welding, the key techniques such as the welding power supplier characteristics, the soft-switching technique, the double closed loop control technique, the synchronic control technique, the twin arc welding torch design, and the wire feeding system are discussed for the realization of the twin arc pulse GMAW welding system.