The compulsively short circuiting transfer phenomenon study in rotational arc MAG welding

The present paper describes the compulsively short circuiting transfer phenomenon of welding current in rotational arc MAG welding. Based on a previously reported model of spray transfer welding, a mathematical model of the short circuiting transfer of rotational arc welding is proposed. A series of welding experiments had been conducted and it's results show that short circuiting transfer would take place when the welding gun electrode rotating to the sides of V groove. The relationship between the short circuiting transfer frequency and the arc rotational frequency also had been studied.