Study on microstructural behavior of aluminum alloy thin-walled tube necking formed by three-roll skew rolling

Study on microstructural behavior of aluminum alloy thin-walled tube necking formed by three-roll skew rolling

CHEN Y.S., SHU X.D., XIA Y.X., HU J., LI Z.X., XU H.J., ZHANG S.

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Abstract. To address the issue of incomplete formation of low necking coefficient pipe fittings in hot extrusion processes, this study adopts a novel three-roll skew rolling (TRSR) technique to investigate the microstructural recrystallization distribution patterns during necking forming of aerospace thin-walled pull rods using TRSR. The principles of TRSR necking forming of pipe fittings are initially elucidated, followed by the establishment of a finite element model using simufact forming software and secondary development of the software to embed dynamic recrystallization volume and grain size models. The study analyzes the temperature distribution patterns and dynamic recrystallization behavior during necking forming of aluminum alloy thin-walled pipes via TRSR, aiming to contribute to the research on high-quality necking pipe fittings produced through TRSR.

Keywords
Three-Roll Skew Rolling, Tube, Necking, Secondary Development, Dynamic Recrystallisation

Published online 9/15/2024, 7 pages
Copyright © 2024 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: CHEN Y.S., SHU X.D., XIA Y.X., HU J., LI Z.X., XU H.J., ZHANG S., Study on microstructural behavior of aluminum alloy thin-walled tube necking formed by three-roll skew rolling, Materials Research Proceedings, Vol. 44, pp 144-150, 2024

DOI: https://doi.org/10.21741/9781644903254-16

The article was published as article 16 of the book Metal Forming 2024

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

References
[1] Qiu Z Y, Xu X F, Fu C L, Xiao J and Xiong G L 2019 Experimental study and optimisation of shrinkage and thickening forming of 5A02 aluminium alloy thin-walled tubes and pipes by hot extrusion. Journal of Plasticity Engineering. 26 7-14.
[2] Li Z Z, Er Q Q, Wang B S, Su C, Yang L and Dong X J 2018 Influence and control of hot extrusion process on the organisation of 690 alloy. Rare Metal Materials and Engineering. 47 3776-3783.
[3] Guo Y Q, Xu C G, Han J T and Wang Z Y 2020 New technique of precision necking for long tubes with variable wall thickness. Frontiers of Mechanical Engineering. 15 622-630. https://doi.org/10.1007/s11465-019-0565-7
[4] Yi H, Xue F X, Li X D and Zhong G H 2022 Numerical simulation and experimental study of electrically assisted 5A02 thin-walled tube shrinkage thickening forming. Journal of Plasticity Engineering. 29 27-32.
[5] Pater Z 2017 FEM Analysis of loads and torque in a skew rolling process for producing axisymmetric parts Arch. Archives Of Metallurgy And Materials. 62 85–90. https://doi.org/10.1515/amm-2017-0011
[6] Shu C, Zhang S, Bidare P, Essa K, Abdel-Wahab, Shu X D et al 2022 Microstructure evolution of three-roll skew-rolling formed hollow axles with uniform wall thickness. International Journal Of Advanced Manufacturing Technology.121 4069-4085. https://doi.org/10.1007/s00170-022-09583-5
[7] Wang J T, Shu X D, Ye C Q, Li Z X, Li S Xe et al 2023 Study on forming quality of three-roll skew rolling hollow axle. International Journal Of Advanced Manufacturing Technology. 128 1089-1100. https://doi.org/10.1007/s00170-023-11893-1
[8] Ye B H, Shu X D, Xia Y X 2022 Wall thickness variation rule of three-roll slant rolling reduction section of aviation thin-walled pipe fittings. Journal of Ningbo University (Science and Technology Edition). 35 57-62.
[9] Xia Y X, Shu X D, Zhang S, Wang J T, Ye C Q 2022 Research On Integrated Forming Process Of Three-roll Reducing And Thickening Of Necking Section For Thin-walled Tube Of Aluminum Alloy 2A12.Metalurgija. 61 733-736.
[10] Qi Y J, Yu X P, Lv H Y, Pang G Y 2018 Dynamic Recrystallization Behavior of 6061 Aluminum Alloy. Special Casting & Nonferrous Alloys. 38 1185-1188.
[11] Mou Q J and Chen B J 2016 Analysis of dynamic recrystallisation during forging and forming of 6061 aluminium alloy wheels. Foundry technology. 37 2711-2713.