Abstract
Spinning is widely used in aerospace and automobile industries, and non-axisymmetric spinning is developing with the increasing demand of irregular shape forming. Based on this, an avoidance groove at the middle of the tube (AGMT) which has a potential application value in aircraft structure weight reduction is proposed and formed by using non-axisymmetric die-less spinning. The roller path is analyzed. The relationship between radial displacement of roller and the rotation time of the tube is deduced. Based on the roller path, 3D finite element model is established. Then, the AGMT spinning experiment is carried out to verify the simulation results. The maximum deviation between the simulation and experimental results is less than 15%. It is indicated that the 3D finite element model established in this study is reliable and the method for the AGMT forming is feasible. The wall thickness and strain–stress distributions are analyzed. The severe wall thickening and thinning occur in the transition zones; more attention should be paid to these positions. The depth of the groove has great impact on the forming quality. Deeper groove results in distortion and larger wall thickness difference. The research lays a foundation for the further development and optimization of the AGMT spinning.
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Funding
This work was supported by the Aviation Science Foundation, China (No. 2018ZE54028) and the Natural Science Foundation of Liaoning Province, China (No. 2019ZD0240). The authors wish to express their gratitude to the Open Foundation of Key Lab of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process, China (No. SHSYS202005) and the Liaoning Provincial Department of Education Fund, China (No. JYT2020005).
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ZJ proposed the method, carried out the experiments and revised the manuscript. XW designed the roller path, established the finite element model and wrote the manuscript. YS and YX improved the finite element model and participated in the tooling design and processing. XG and BL put forward valuable suggestions for the English writing and provided project support. All the authors participated the result discussion of the manuscript.
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Jia, Z., XuanWang, Shen, Y. et al. Numerical simulation and experimental study on non-axisymmetric spinning with a groove at the middle of the tube. Int J Adv Manuf Technol 121, 6271–6284 (2022). https://doi.org/10.1007/s00170-022-09715-x
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DOI: https://doi.org/10.1007/s00170-022-09715-x