Keywords
U-shaped magnetic conductor
pulsed eddy current
ferromagnetic platform
magnetic forces
How to Cite
Abstract
The action of high-density pulsed currents (109 A/m2) leads to the appearance of the electro-plastic effect in metal products. It is proposed to use magnetic pulse treatment of nonmagnetic plates by electromagnetic inductors with a U-shaped magnetic circuit for local flow pulsed currents in the nonmagnetic plates. The work aims to establish an influence of a ferromagnetic platform with nonlinear magnetic permeability on pulsed eddy currents and magnetic pressure of nonmagnetic metal plates with different electrical conductivity in modeling magnetic pulse treatment of welded joints to achieve the electro-plastic effect. Numerical simulation of pulsed electromagnetic fields by the finite element method is used. The current calculation in the inductor's winding is performed by solving the equations of the magnetic field and the electric circuit equations for a discrete-time interval. A power source is a capacitor that is charged to a specific voltage. To study the effect of the ferromagnetic platform on eddy currents and forces in a nonmagnetic plate with its different electrical conductivity, the same pulsed current in the inductor's winding is used. The dependence of amplitude values of eddy current density and magnetic pressure on the surfaces of nonmagnetic plates of different electrical conductivity is investigated. The influence of the presence and absence of a ferromagnetic platform and its electrical conductivity and magnetic permeability on the values of eddy currents and magnetic pressure in the nonmagnetic plate have been studied. Ref. 13, fig. 7, table.
References
Kuznetsov N.N. Influence of electric and magnetic-pulse action on raw stock. Obrabotka materialov davleniem. 2010. No 3(24). Pp. 126–129. URI: http://www.dgma.donetsk.ua/science_public/omd/3(24)-2010/nomer.html (Rus)
Komshina A.V., Pomel'nikova A. S. Promising method of low-energy materials processing using a magnetic field Nauka I Obrazovanie. 2012. No FS77 – 48211. Pp. 463–488. DOI: http://doi.org/10.7463/0912.0454270 (Rus)
Lobanov L.M., Kondratenko I.P., Mikhalskyi V.M., Pashchin M.O., Karlov O.M., Chopyk V.V., Mykhodui O.L. Electrotechnical complex for electrodynamic processing of welded joints. Tekhnichna elektrodynamika. 2020. No 6. Pp. 61–68. DOI: https://doi.org/10.15407/techned2020.06.061 (Ukr)
Andrea D., Burleta T., Körkemeyerb F., G. Gersteinb J.S.K.-L.Gibsona, S. Sandlöbes-Hauta, S. Korte-Kerzel Investigation of the electroplastic effect using nanoindentation. Materials & Design. 2019. Vol. 183. DOI: https://doi.org/10.1016/j.matdes.2019.108153 (Eng)
7. Troitsky O.A. and Stashenko V.I. Advantages of drawing and rolling metals with pulse current. IOP Conf. Series: Materials Science and Engineering, 2020. DOI: https://doi.org/10.1088/1757-899X/848/1/012084 (Eng)
Vasetsky Yu.М., Kondratenko I.P. Electromagnetic field of the inductor for local electric pulse effects on metal products. Tekhnichna elektrodynamika. 2020. No 4. Pp. 11–14. DOI: https://doi.org/10.15407/techned2020.04.011 (Ukr)
Kryshchuk R.S. Influence of winding ends on the parameters of pulse inductor with U-shaped core. Tekhnichna elektrodynamika. 2020. No 6. Pp. 69–76. DOI: https://doi.org/10.15407/techned2020.06.069 (Eng)
Rashchepkin A.P., Kondratenko I.P., Karlov A.N., Kryshchuk R.S. Magnetic forces and currents of the inductor for magnetic-pulse processing of welding joints of non-magnetic thin sheet metals. Tekhnichna elektrodynamika. 2020. No 5. Pp. 74–79. DOI: https://doi.org/10.15407/techned2020.05.074 (Ukr)
Rashchepkin A.P., Kondratenko I.P., Karlov A.N., Kryshchuk R.S. Influence of U-shaped magnetic core of in-ductor with two coils on eddy currents of thin-walled non-magnetic metal plates in process of magneto-pulsed treatment. Pratsi Instytutu Elektrodynamiky Natsionalnoi Akademii Nauk Ukrainy. 2021. Issue 59. Pp. 20–27. DOI: https://doi.org/10.15407/publishing2021.59.020
Raschepkin A.P., Kondratenko I.P., Karlov O.M., Kryshchuk R.S. A method for calculating electromagnetic field of a spiral type induction system for magnetopulse processing of non-magnetic metal strips with a ferromagnetic shield. Tekhnichna elektrodynamika. 2022. No 2. Pp. 43–51. DOI: https://doi.org/10.15407/techned2022.02.043 (Ukr)
Voldek A.I. Induction magnetohydrodynamic machines with liquid working body. Leningrad: Energiia, 1970. 272 p. (Rus)
Neumann L.R., Demirchyan K.S. Theoretical foundations of electrical engineering. Volume 2. Moskva-Leningrad: Energiia, 1966. 407 p. (Rus)
Tamm I.E. Theory of electricity. Moskva: Nauka, 1976. 616 p. (Rus)
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