Vydmysh P. Arc welding process in external magnetic field effectiveness increase

Оbject - process of automatic submerged arc welding with the external magnetic field. Item - processes in the electrode metal and zone of the molten metal weld pool in submerged arc welding with the external magnetic field. Methods: physical modeling, experiments, standard methods for determining the rate of melting, metallography, mechanical tests, developed computational techniques. Main results: the calculation method is proposed using the electrostatic equations adequately reflects the structure of the magnetic fields generated by the real ID TMF, and allows you to evaluate the distribution of the components in the MF induction weld pool area; developed a calculation method based on the balance of the integral forces acting on a drop in arc welding with exposure TMF; It shows that the one-pass submerged arc welding at joints lining plates of ferromagnetic steel 4-12 mm (Types compounds C4 and C18) should be used within TMF frequency 6-12 Hz, at a level of 25-30 mT induction; using control magnetic fields in the submerged arc welding of butt joints, 4 mm thick plates of steel 09G2S on lining obtained by increasing the strength of welded joints by 11-12%.