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2022 №07 (08) DOI of Article
10.37434/tpwj2022.07.01
2022 №07 (02)

The Paton Welding Journal 2022 #07
The Paton Welding Journal, 2022, #7, 3-9 pages

Calculated evaluation of stress-strain states of welded joints of aluminium AMg61 alloy under the action of electrodynamic treatment of weld metal in the process of fusion welding

L.M. Lobanov1, M.O. Pashchyn1, O.L. Mikhodui1, A.A. Hryniuk1, E.V. Illyashenko1, P.V. Goncharov1, V.V. Savytskyi1, Yu.M. Sydorenko2, P.R. Ustymenko2


1National Technical University of Ukraine “Igor Sikorsky Kyiv polytechnic Institute” 37 Peremohy Prosp., 03056, Kyiv, Ukraine
2E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: svarka2000@ukr.net

Abstract
The calculation evaluation of effect of impact interaction of electrode-indenter with a welded plate of AMg61 alloy at its electrodynamic treatment (EDT) in the conditions of elevated temperatures was carried out. The solution of the problem was carried out in a flat two-dimensional Lagrangian statement based on a previously developed mathematical model using ANSYS/ LS-DYNA software. The thermal cycle of welding was set by mechanical characteristics of AMg61 alloy at temperatures of 150 and 300 °C. The results of the calculation of residual stresses during impact action of electrode-indenter at room and elevated temperatures in preliminary tensioned plates of AMg61 alloy of 3 mm thickness were presented. It is shown that the most acceptable temperature (from the studied temperature values) for the electrodynamic treatment of AMg61 alloy is 150 °C. Based on the results of the studies, it was found that the electrodynamic treatment of welded joint specimen in the form of a plate preliminary loaded with elastic tension leads to the transition of residual welding tensile stresses into compression stresses. 12 Ref., 2 Tabl. , 4 Fig.
Keywords: electrodynamic treatment, residual welding stresses, aluminium alloy, electric current pulse, impact interaction, finite-element model, electrode-indenter, elastic-plastic flow theory, fusion welding.

Received: 23.06.2022
Accepted: 15.09.2022

References

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Suggested Citation

L.M. Lobanov, M.O. Pashchyn, O.L. Mikhodui, A.A. Hryniuk, E.V. Illyashenko, P.V. Goncharov, V.V. Savytskyi, Yu.M. Sydorenko, P.R. Ustymenko (2022) Calculated evaluation of stress-strain states of welded joints of aluminium AMg61 alloy under the action of electrodynamic treatment of weld metal in the process of fusion welding. The Paton Welding J., 07, 3-9.