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Large ellipsoid parts manufacture using electromagnetic incremental forming with variable blankholder structure

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Abstract

Large ellipsoid parts are prone to wrinkle when forming by using traditional stamping. Aiming to solve the wrinkling problem in large parts, the EMIF method with a variable blank holder is proposed in this paper. The numerical simulation has shown that the sheet material near the blank holder is, as a consequence of stamping, subjected to circumferential compressive stress. When the drawing height was 100 mm, the sheet metal was notably wrinkled. In the electromagnetic forming (EMF) process, the sheet region facing the coil becomes thinner. However, the sheet metal thickness corresponding to the coil edge increases with the increase in forming height. If the EMF forming height is 150 mm, the sheet, which is in contact with the smooth mold, is deformed without a wrinkle. Compared to traditional stamping, the EMF can significantly reduce the sheet metal wrinkling, improving the deformation height of the sheet metal smooth area.

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Availability of data and materials

All data and materials are fully available without restriction.

Funding

This work was supported by the National Natural Science Foundation of China (Grant Number: 51775563 and 51405173), Innovation Driven Program of Central South University (Grant Number: 2019CX006), and the Project of State Key Laboratory of High-Performance Complex Manufacturing, Central South University (ZZYJKT2020-02).

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Authors and Affiliations

  1. Light Alloy Research Institute, Central South University, Changsha, 410083, People’s Republic of China

    Xiaohui Cui, Ziqin Yan & Hailiang Yu

  2. College of Mechanical and Electrical Engineering, Central South University, Changsha, 410083, People’s Republic of China

    Xiaohui Cui, Zhihao Du, Ang Xiao & Hailiang Yu

  3. State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha, 410083, People’s Republic of China

    Xiaohui Cui & Hailiang Yu

  4. COMAC Shanghai Aircraft Manufacturing Co., Ltd., Shanghai, 201324, People’s Republic of China

    Baoguo Chen

Authors
  1. Xiaohui Cui
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  2. Ziqin Yan
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  3. Baoguo Chen
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  4. Zhihao Du
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  5. Ang Xiao
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  6. Hailiang Yu
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Contributions

Xiaohui Cui: methodology, investigation, simulation, experiments, writing—review and editing

Ziqin Yan: methodology, investigation, writing

Baoguo Chen: investigation

Zhihao Du: investigation, collected data, experiments

Ang Xiao: simulation, collected data

Hailiang Yu: review and editing, investigation

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Correspondence to Xiaohui Cui.

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Cui, X., Yan, Z., Chen, B. et al. Large ellipsoid parts manufacture using electromagnetic incremental forming with variable blankholder structure. Int J Adv Manuf Technol 116, 3699–3715 (2021). https://doi.org/10.1007/s00170-021-07695-y

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  • DOI: https://doi.org/10.1007/s00170-021-07695-y

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