Modelling of Welding Systems with Arc Controlled by the Magnetic Field – Part 1: Technological Effects of External Magnetic Fields

Today’s welders are in great need of knowledge concerning the magnetic field on the electric arc. On one hand, the aforesaid effect on welding arc is detrimental as it causes the so-called magnetic blowout and necessitates undertaking actions and measures aimed to counteract such a phenomenon. However, on the other hand, the magnetic field can be used to improve the quality and increase the efficiency of welding processes. The magnetic field effect on the arc leads to the deflection and changes in the shape of the latter.