Print

2022 №10 (02) DOI of Article
10.37434/tpwj2022.10.03
2022 №10 (04)

The Paton Welding Journal 2022 #10
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

1. Kuchuk-Yatsenko, S.I. (1992) Flash butt welding. Kyiv, Naukova Dumka [in Russian].
2. Kuchuk-Yatsenko, S.I., Chvertko, P.N., Semyonov, L.A. et al. (2010) Peculiarities of flash butt welding of high-strength aluminium alloy 2219. The Paton Welding J., 3, 7-9.
3. Kuchuk-Yatsenko, S.I., Gushchin, K.V. (2018) Flash butt welding of high-strength aluminium-based alloys. In: Science of Materials: Achievements and Prospects. Kyiv, Akademperiodyka [in Russian].
4. Weingrill, L., Krutzler, J., Enzinger, N. (2017) Temperature field evolution during flash-butt welding of railway rails. Materials Science Forum, 879, 2088-2093. https://doi.org/10.4028/www.scientific.net/MSF.879.2088
5. https://www.schlattergroup.com/en/welding-machines/flashbutt-welding-machines-for-rails/ [дата звернення 28.06.2022].
6. Патент CN103894717A (2014) Preheating burnoff flash butt welding method for welding large-section steel vehicle wheels. Patent CN103894717A (2014) Preheating burnoff flash butt welding method for welding large-section steel vehicle wheels.
7. Shi, S.-C., Wang, W.-C., Ko, D.-K. (2022) Influence of inclusions on mechanical properties in flash butt welding joint of high-strength low-alloy steel. Metals, 12, 242, 1-13. https://doi.org/10.3390/met12020242
8. Kuchuk-Yatsenko, V.S., Nakonechny, A.A., Sakhatsky, A.G. (2010) Resistance welding of steel reinforcement using composite insert. The Paton Welding J., 4, 34-36.
9. Kuchuk-Yatsenko, S.I., Zyakhor, I.V., Chernobaj, S.V. et al. (2015) Structure of γ-TiAl joints in resistance butt welding with application of interlayers. Ibid, 9, 5-12. https://doi.org/10.15407/tpwj2015.09.01
10. Kuchuk-Yatsenko, S.I., Zyakhor, I.V., Nakonechny, A.A. et al. (2018) Resistance butt welding of titanium aluminide γ-TiAl with VT5 alloy. Ibid, 9, 2-6. https://doi.org/10.15407/tpwj2018.09.01
11. Iurzhenko, M.V. (2019) Novel technological approach to butt welding «in closed volume» with heated tool of polymer multilayer composite pipes. Visnyk KhNTU. Inzhenerni Nauky, 1 (68), 65-72 [in Russian].
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
13. Tkachenko, V.N. (2008) Mathematical modeling, identification and control of technological processes of heat treatment of materials. Kyiv, Naukova Dumka [in Russian].

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.