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AZ31 magnesium alloy tube manufactured by composite forming technology including extruded-shear and bending based on finite element numerical simulation and experiments

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A Correction to this article was published on 17 July 2023

A Correction to this article was published on 14 April 2023

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Abstract

This paper presents a new forming technology for manufacturing the AZ31 magnesium alloy thin-wall tube. The direct extrusion process and continuous shearing-bending process are combined to produce thin-wall magnesium tube, abbreviated as “TESB” (tube extrusion-shearing-bending). The process has been studied based on the combination of experiments and numerical simulations, and the influences of temperatures, extrusion stresses, and friction factors on the forming process have been studied by Deform-3D simulation. And the mechanical properties and the grain size of the formed product have been tested. TESB technology has been proved to refine the grains of magnesium alloy tube effectively, and the mechanical property of the product can be improved. The better experimental extrusion conditions were also obtained by simulation, and the properties of the products under the condition of lubrication were better when the temperature was 400°C. Three-dimensional finite element modeling is used to investigate the plastic deformation behaviors of wrought magnesium alloy during TESB process. Numerical results indicate TES could increase the cumulative strains effectively by direct extrusion and additional shearings. Experiments show that microstructures of magnesium alloy fabricated by TESB process can be refined to 50% of the original grain size with more uniform distribution. TES process could improve hardness of magnesium alloy obviously by comparing with which fabricated by direct extrusion.

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The raw/processed data required to reproduce these findings cannot be shared at this time as the data also forms part of an ongoing study.

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Funding

This work was supported by the National Science Foundation of China (52071042, 51771038, and 51571040); Chongqing Talent Plan (CQYC202003047); Chongqing Natural Science Foundation Project of cstc2018jcyjAX0249, cstc2018jcyjAX0653, and cstc2016jcyjA0434; Scientific and Technological Research Program of Chongqing Municipal Education Commission (KJ1600924); and Science and Technology Planning in Banan District of Chongqing City (No.0109184334).

I confirm that I have mentioned all organizations that funded my research in the Acknowledgements section of my submission, including grant numbers where appropriate.

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Authors and Affiliations

  1. Materials Science and Engineering College, Chongqing University of Technology, Chongqing, 400050, China

    Hongjun Hu, Xing Hong & Ye Tian

  2. National Engineering Research Center for Magnesium Alloys, Chongqing, 400044, China

    Dingfei Zhang

Authors
  1. Hongjun Hu
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  2. Xing Hong
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Contributions

• Hongjun Hu is the corresponding author of this paper who wrote the paper.

• Xing Hong did the experiments

• Ye Tian did the examples in this paper.

• Dingfei Zhang researched the microstructures analysis in this paper.

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Correspondence to Hongjun Hu.

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The original online version of this article was revised: Figure 6 has been revised.

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Hu, H., Hong, X., Tian, Y. et al. AZ31 magnesium alloy tube manufactured by composite forming technology including extruded-shear and bending based on finite element numerical simulation and experiments. Int J Adv Manuf Technol 115, 2395–2402 (2021). https://doi.org/10.1007/s00170-021-07242-9

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