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Finite element analysis to optimize forming conditions for lower control arm

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Abstract

Finite element simulations for the press forming of a lower arm are performed using the explicit dynamic finite element method (FEM) code PAM-STAMP. To optimize the press-forming conditions and secure a safe product without any failure, such as fractures and wrinkling, the FEM simulations are coupled with Taguchi’s orthogonal array experiment. Three design variables—the friction coefficient, plastic anisotropy parameter, and blank shape—are selected to be optimized. The numeric simulations reveal that the blank shape is the most important variable, and its modification is most effective in optimizing the press-forming conditions for a lower arm. In addition, the modified blank shape produces a high yield ratio for the in-come coil. The simulation results are confirmed with experimental ones.

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Authors and Affiliations

  1. the Department of Mechanical Engineering, Kyungpook National University, 702-701, Daegu, South Korea

    Youngsuk Kim (Professor) & Seunghan Yang (Professor)

  2. the Pohang Iron and Steel Company, 702-701, Pohang, South Korea

    Hyunsung Sohn (Researcher)

  3. the Department of Mechanical Engineering and Systems, Osaka University, 565-0871, Osaka, Japan

    Junyoung Park (Designated Researcher)

  4. Incheon Research Center, Korea Institute of Industrial Technology, 463-130, Inchon, South Korea

    Seogou Choi (Principal Researcher)

Authors
  1. Youngsuk Kim
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  2. Seunghan Yang
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  3. Hyunsung Sohn
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  4. Junyoung Park
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  5. Seogou Choi
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Kim, Y., Yang, S., Sohn, H. et al. Finite element analysis to optimize forming conditions for lower control arm. Metall Mater Trans A 37, 2539–2547 (2006). https://doi.org/10.1007/BF02586226

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  • DOI: https://doi.org/10.1007/BF02586226

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