Kinetic analysis of spray transfer welding arc in a longitudinal magnetic field

A miniaturized generator device for longitudinal magnetic field is designed.The simulation result which calculated by finite element code Ansys indicates that radial component exists in arc zone.Applied the longitudinal magnetic field to the process of spray transfer, the movement character of arc and liquid metal jet is obtained by high speed camera.On the basis of electrode magnetic force, the stress of different shaped arc can be analyzed.So the spatial shape of arc is spiral line.