The Paton Welding Journal, 2022, №10



2022 №10 (02)

DOI of Article 10.37434/tpwj2022.10.03

2022 №10 (04)

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The Paton Welding Journal, 2022, #10, 18-24 pages

Features of resistance preheating at flash-butt welding of thick-walled parts from aluminium alloys

K.V. Hushchyn¹, I.V. Zyakhor¹, S.M. Samotryasov¹, M.S. Zavertannyi¹, A.M. Levchuk¹, Wang Qichen²

¹E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: zyakhor2@ukr.net
²CIMC Offshore Engineering Institute Company Limited, Yantai, Shandong, P.R. China

Abstract
The technological concept of flash-butt welding with resistance preheating using a reusable intermediate insert of a material with a high electrical resistance is proposed and substantiated by calculation. Calculation and experimental results indicate a significant effect of using intermediate insert during resistance heating: the temperature at both characteristic spots grows significantly at all investigated values of current density, insert thickness and heating time. The specified effect is achieved by intensifying and localizing the process of heat generation in the contact area of parts and correspondingly reducing the energy loss for heating the secondary circuit of the welding machine. 13 Ref., 1 Tabl., 8 Fig.
Keywords: flash-butt welding, resistance heating, aluminum alloy, mathematical modeling, temperature field

Received: 22.08.2022
Accepted: 01.12.2022

References

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12. Kuchuk-Yatsenko, S.I., Hushchyn, K.V., Ziakhor, I.V. et al. (2021) Structure and mechanical properties of 2219-T87 aluminium alloy joints produced by flash butt welding. The Paton Welding J., 8, 27-32. https://doi.org/10.37434/tpwj2021.08.06
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Suggested Citation

K.V. Hushchyn, I.V. Zyakhor, S.M. Samotryasov, M.S. Zavertannyi, A.M. Levchuk, Wang Qichen (2022) Features of resistance preheating at flash-butt welding of thick-walled parts from aluminium alloys. The Paton Welding J., 10, 18-24.

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