TY - CONF A1 - Gumenyuk, Andrey T1 - Hybrid laser arc welding of thick-walled ferromagnetic steels with electromagnetic weld pool support N2 - Electromagnetic weld pool support system is illustrated successfully for hybrid laser arc welding of 20 mm ferromagnetic steels. Welding of thick-walled steels in flat position and reduced welding velocities is possible. Skin depth must be smaller than the plate thickness for protect the electric arc against external oscillating magnetic field. Residual magnetic field has a low influence, the deflection of the arc can be neglected. At high AC frequency more AC power is needed for ideal compensation (Hysteresis losses). T2 - The 70th IIW Annual Assembly and International Conference CY - Shanghai, People's Republic of China DA - 25.06.2017 KW - Electromagnetic weld pool support KW - Hybrid laser arc welding PY - 2017 AN - OPUS4-41259 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -