Avtomaticheskaya Svarka (Automatic Welding), # 7, 2018, pp. 18-23
To the issue of modeling the structure of transverse magnetic
field in the area of welding pool
A.D. Razmyshlyaev1, P.A. Vydmysh2, M.V. Ahieieva3
State Higher Eductation Instittue Pryazovskyi State Technical University 7, Universitetskaya Str., 87500, Mariupil, Ukraine.
OJSC «Metinvest-Promservis», 113-а Nikopol ave., 87500, Mariupil, Ukraine, Е-mail: email@example.com
Donbass State Machine Building Academy, 72 Akademicheskaya Str., 84313, Kramatorsk, Ukraine.
It was established experimentally that a normal component of induction along the side surfaces of rods of the device for input of transverse magnetic field is distributed almost uniformly (has the same values). A slight increase in the values of this induction component is observed only in the zones near the ends of the rods and near the coils, placed on these rods. To study the distribution of induction of a transverse magnetic field in the welding pool area (near the surface of the base metal) it was proposed to use the well-known assumption that there is an analogy between the structure of magnetostatic and electrostatic fields. On this basis, a procedure was proposed which allows calculating the distribution of transverse and longitudinal components of induction of the magnetic field generated by the device for input of the transverse magnetic field near the surface of the welded plate of non-magnetic materials. In this case, the known electrostatic equations are used. It was assumed in the calculations that the charges of electrostatic field on the side surfaces and ends of the rods of the device for input of the transverse magnetic field are uniformly distributed. It is shown that the proposed method provides a satisfactory convergence of calculated and experimental data. 8 Ref., 6 Fig.
transverse magnetic field, induction, Coulomb’s law, electrostatic field intensity
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- Razmyshlyaev, A.D., Mironova, M.V., Yarmonov, S.V. et al. (2013) Structure of transverse magnetic field generated by input devices for arc welding process. Visnyk Pryazov. DTU: Transact. Mariupol, PDTU, 135-141 [in Russian].