Transactions of Materials and Heat Treatment

Title：Multi-objective optimization on stamping process parameters based on orthogonal test

Authors： Xia Jiangmei Zhang Li Wen Li

Unit： Chongqing Industry Polytechnic College Chongqing University of Technology

KeyWords： orthogonal test stamping forming numerical simulation multi-objective optimization

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2016,41(3):33-36

Abstract：

For the dash board of automobile, the addendum surface and binder surface were designed by three-dimensional software, and the forming process was simulated and analyzed by finite element software. Combining the numerical simulation with the orthogonal experiment, the blank holder force and resistance coefficient of draw-bead were optimized in the forming process by a multi-objective optimization method. Furthermore, the optimized combination parameters were obtained when F=500 kN，K1 =0.4，K2=0.4，K3=0.3，K4=0.6 respectively. The extreme difference analysis shows that the draw-bead resistance coefficient K2 is the biggest influence factor on the maximum thinning rate, and the draw-bead resistance coefficient K3 is the biggest influence factor on the maximum thickening rate. The experimental results show that the part can meet the thickness requirements and avoid cracking after optimization.

Funds：

重庆市教委资助项目(0637335)

夏江梅（1966-），女，硕士，副教授

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