Five-magnetic-pole-based special-shaped sharp-corner magnetic field magnetic control arc control method and device

The invention relates to the field of magnetic control electric arc welding, in particular to a magnetic control electric arc control method and device for a special-shaped sharp-corner magnetic field based on five magnetic poles, and discloses a method for generating the special-shaped sharp-corner magnetic field based on the five magnetic poles in the welding process to adjust the non-axisymmetric stretching and compression effect of a welding electric arc. The magnetic control arc device which is simple in structure and has water cooling and magnetic poles are easy to disassemble and assemble is designed, the magnetic control arc controller is used for controlling the waveform of exciting current, meanwhile, the magnetic pole angle between the magnetic poles is adjusted, and the generated non-axisymmetric distributed special-shaped sharp-corner magnetic field is regulated and controlled; according to the special-shaped sharp-corner magnetic field magnetic control electric arc control method and device base