Abstract
Interrupted pulsed argon arc welding and pulsed arc welding are different in principle, and their arc behavior is also different. According to the theory of magnetohydrodynamics and multi-physics coupling analysis finite element technology, this paper establishes a numerical analysis model of arc in micro-heat repair process, and obtains the distribution of parameters such as arc temperature field, velocity field and electromagnetic force and voltage in arc. The mechanism of the arc is analyzed, and the image signal of the arc change during the welding process is collected by the high-speed camera system, which is basically consistent with the simulation results.
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