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Analysis of room-temperature stamping formability of complex features of AZ31 magnesium alloy variable-curvature plate shell

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Abstract

The forming properties of AZ31 magnesium alloy plates were obtained by tensile tests, using Autoform software to simulate the room-temperature stamping process of AZ31 magnesium alloy. And orthogonal experiments were explored on the variable-curvature plate shell parts of AZ31 magnesium alloy in order to investigate the influence of various forming parameters. The conditions of 14.41% sufficient forming with blank-holder force, clearance between punch and die, the resistance coefficient of drawbead, and the coefficient of friction were clarified. The results suggest that the blank-holder force plays a preponderant role in the maximum thinning rate of the room-temperature stamping formability of AZ31. Additionally, the study found that the curvature of the punch radius is negatively associated with the average thinning rate. In order to promote the flow of metal around the punch radius and to improve the forming uniformity and ultimate forming depth, it is necessary to reduce the curvature of the punch radius to reduce the stress concentration at the punch radius.

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Funding

This work was supported by the National Natural Science Foundation of China (U1910213 and 52105388) and the Key Research and Development Program of Shanxi Province (No. 202102050201005).

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Authors and Affiliations

  1. College of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, China

    Hengtao Wang, Lifeng Ma & Weitao Jia

  2. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, China

    Hongbo Xie

  3. School of Materials Science and Engineering, Hunan University of Science and Technology, Xiangtan, 411201, China

    Liwei Lu

Authors
  1. Hengtao Wang
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  4. Hongbo Xie
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Contributions

All the authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by Hengtao Wang, Weitao Jia, and Lifeng Ma. The first draft of the manuscript was written by Hengtao Wang, and all the authors commented on the previous versions of the manuscript. All the authors read and approved the final manuscript.

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Correspondence to Lifeng Ma or Weitao Jia.

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Wang, H., Ma, L., Jia, W. et al. Analysis of room-temperature stamping formability of complex features of AZ31 magnesium alloy variable-curvature plate shell. Int J Adv Manuf Technol 123, 3159–3169 (2022). https://doi.org/10.1007/s00170-022-10412-y

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  • DOI: https://doi.org/10.1007/s00170-022-10412-y

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