Transactions of Materials and Heat Treatment

Title：Optimization on drawing process parameters of a front panel based on orthogonal test

Authors： Li Lei Wu Xiaojun

Unit： Chongqing Industry Polytechnic College

KeyWords： orthogonal test automobile panel finite element method multiobjective front panel drawing

ClassificationCode：TG386

year,vol(issue):pagenumber：2017,42(3):48-51

Abstract：

The drawing process of a front panel was studied, and the experiment was designed by orthogonal experiment. Then, a multi-objective optimization was conducted by the optimization objective functions of the maximum thinning φ1 and wrinkling evaluation function φ2 and the influencing factors of blank holding force F, friction coefficient μ and concave die velocity v. Thus, through the actual tests in factory, the results show that the qualified parts can be obtained with the optimal parameters F=600 kN, μ=0.125 and v=15 mm·s-1. The results of numerical simulation are in agreement with the actual results without crackled defects. Furthermore, the wrinkling areas are mainly located beyond the trimming line. The experiment results show that the combination of numerical simulation and orthogonal experiment can optimize the process parameters of stamping process effectively.

Funds：

重庆市教育科学“十二五”规划2014年度课题（2014-GX-128）；重庆市教委科学技术研究项目（KJ1403005）

李雷（1976-），男，硕士，副教授

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