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Volume 39 Issue 7
Jul.  2013
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Journal of Beijing University of Aeronautics and Astronautics  > 2013  >  39(7): 943-946.
Guo Tao, Li Xiaoxing. Stretch bending die clearance influence on forming accuracy to complex section profile[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(7): 943-946. (in Chinese)
Citation: Guo Tao, Li Xiaoxing. Stretch bending die clearance influence on forming accuracy to complex section profile[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(7): 943-946. (in Chinese)
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Stretch bending die clearance influence on forming accuracy to complex section profile

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 01 Aug 2012
  • Publish Date: 30 Jul 2013
    Abstract
  • The finite element analysis(FEA) method was adopted to simulate the stretch-bending process for complex asymmetric section aluminum alloy profile, and the effect on distortion and the influence of spring back due to die clearance of symmetry and asymmetry was studied. The results show that thickness change to thinner after bending, and the minimum thickness is with little effect from clearance, but the asymmetric will result the change of distortion direction, it will also change after spring back. To improve the forming accuracy by reducing the distortion and spring back, a numerical simulation analysis method was adopted to optimize the right and left clearance on the die. It also provides theoretical evidence for stretch-wrap bending die design.

     

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