Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2023 , Vol. 57 >Issue 10: 1329 - 1336

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2022.165

Mechanical Engineering

Numerical Simulation of Stamping-Spinning Hybrid Process for Aluminum Alloy Hemispherical Shells

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  • 1. Shanghai Key Laboratory of Digital Manufacture for Thin-Walled Structures, Shanghai Jiao Tong University, Shanghai 200240, China
    2. Shanghai Spaceflight Precision Machinery Institute, Shanghai 201600, China

Received date: 2022-05-16

  Revised date: 2022-06-18

  Accepted date: 2022-06-30

  Online published: 2022-11-10

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Abstract

Aimed at the poor accuracy in traditional deep drawing of aerospace aluminum alloy hemispherical shells, and by introducing metal spinning, a stamping-spinning hybrid process strategy for aluminum alloy hemispherical shells is proposed, which can achieve the forming processing of the formed component with a high thickness uniformity and high shape accuracy. The finite element simulation model of the hybrid process of the aluminum alloy hemispherical shell is developed, which realizes the simulation. In addition, the variation law of the wall thickness and shape fitting of the hemispherical shells formed by the hybrid process are analyzed. The simulation results show that the uniformity of wall thickness of the hemispherical shells formed by 50% stamping + 50% spinning is significantly improved. The shape accuracy of the component can be obviously improved by changing the stress state of the forming component by power spinning. Meanwhile, the hybrid process is verified by using an aluminum alloy hemispherical shell with a diameter of 1 m in processing test, which improves the thickness uniformity and the shape accuracy of the hemispherical shell.

Key words： aluminum alloy; thin-walled part; spinning; stamping; forming accuracy

Cite this article

YU Xiaopeng, WANG Zimin, YU Zhongqi, LUO Yimin, YU Li . Numerical Simulation of Stamping-Spinning Hybrid Process for Aluminum Alloy Hemispherical Shells[J]. Journal of Shanghai Jiaotong University, 2023 , 57(10) : 1329 -1336 . DOI: 10.16183/j.cnki.jsjtu.2022.165

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