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Multi-objective optimization of stamping forming process of head using Pareto-based genetic algorithm

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Abstract

To obtain the optimal process parameters of stamping forming, finite element analysis and optimization technique were integrated via transforming multi-objective issue into a single-objective issue. A Pareto-based genetic algorithm was applied to optimizing the head stamping forming process. In the proposed optimal model, fracture, wrinkle and thickness varying are a function of several factors, such as fillet radius, draw-bead position, blank size and blank-holding force. Hence, it is necessary to investigate the relationship between the objective functions and the variables in order to make objective functions varying minimized simultaneously. Firstly, the central composite experimental (CCD) with four factors and five levels was applied, and the experimental data based on the central composite experimental were acquired. Then, the response surface model (RSM) was set up and the results of the analysis of variance (ANOVA) show that it is reliable to predict the fracture, wrinkle and thickness varying functions by the response surface model. Finally, a Pareto-based genetic algorithm was used to find out a set of Pareto front, which makes fracture, wrinkle and thickness varying minimized integrally. A head stamping case indicates that the present method has higher precision and practicability compared with the “trial and error” procedure.

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Authors and Affiliations

  1. College of Material Science and Engineering, Chongqing University, Chongqing, 400044, China

    Jie Zhou  (周杰), Fang Zhuo  (卓芳), Lei Huang  (黄磊) & Yan Luo  (罗艳)

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  1. Jie Zhou  (周杰)
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  2. Fang Zhuo  (卓芳)
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  3. Lei Huang  (黄磊)
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  4. Yan Luo  (罗艳)
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Corresponding author

Correspondence to Jie Zhou  (周杰).

Additional information

Foundation item: Project(2012ZX04010-081) supported by the National Science and Technology Major Project of the Ministry of Science and Technology of China

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Zhou, J., Zhuo, F., Huang, L. et al. Multi-objective optimization of stamping forming process of head using Pareto-based genetic algorithm. J. Cent. South Univ. 22, 3287–3295 (2015). https://doi.org/10.1007/s11771-015-2868-0

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  • DOI: https://doi.org/10.1007/s11771-015-2868-0

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