Optimization of Drawbeads for Springback Based on RSM and NSGA-II

Lei Cheng; Wei Zhang; Bao Chun Lu; Hui Jun Gong; Yong Zheng Song

doi:10.4028/www.scientific.net/AMR.154-155.902

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 154-155Optimization of Drawbeads for Springback Based on...

Optimization of Drawbeads for Springback Based on RSM and NSGA-II

Abstract:

To improve material flow of sheet metal, draw beads are used to prevent wrinkling and springback during deep drawing process. Firstly, taking BenchMark2 "S-Rail-08" of NUMSIHEET’2008 as a study case, based on the orthogonal tests of finite element simulation of stamping process, a springback prediction model which adopts response surface method (RSM) was proposed to predict the springback influenced by draw beads parameters approximately. Then, in order to reduce springback, non-dominated sorting genetic algorithm (NSGA-II), is implemented to inverse and optimize both geometry and layout parameters of draw beads cost-efficiently. Finally, the validation of optimal parameters set and the feasible of this optimize approach are confirmed by finite element simulation of S-Rail springback.

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Periodical:

Advanced Materials Research (Volumes 154-155)

Pages:

902-906

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.154-155.902

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Online since:

October 2010

Authors:

Lei Cheng, Wei Zhang, Bao Chun Lu, Hui Jun Gong, Yong Zheng Song

Keywords:

Draw Beads, NSGA-II, RSM, Springback, S-Rail

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References

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