Numerical Simulation of Springback of the Multi-Point Forming for Metal Plank after Using Elastic Cushion

Abstract:

Springback is a problem that must be solved in multi-point forming in this paper, finite element software ls-dyna was used to simulate plate stamping springback. 3mm thick elastic cushion inhibited dimple of sheet forming, but the use of elastic cushion and plate springback would lead to shape error. A method was proposed which modified the forming surface of element group in the Multi-point forming (MPF) by iterative ways according to the numerical simulation results. The accuracy of forming was improved after two compensation, it was proved that this method can compensate springback of the multi-point forming.

• Periodical: Applied Mechanics and Materials (Volume 473)
• Pages: 121-124
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.473.121
• Online since: December 2013
• Authors: Ning Yao
• Keywords: Elastic Cushion, LS-DYNA, Multi-Point Forming, Springback

References

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