锻压技术

基于正交试验的前围板拉延成形工艺参数优化

英文标题：Optimization on drawing process parameters of a front panel based on orthogonal test

作者：李雷吴小俊

单位：重庆工业职业技术学院

分类号：TG386

出版年,卷(期):页码：2017,42(3):48-51

摘要：

针对某车型前围板的拉延成形工序进行研究，采用正交试验进行试验方案设计。以最大减薄率φ1和起皱评价函数φ2作为优化目标函数，压边力F、摩擦系数μ和凹模下压速度v作为影响因素进行多目标优化，最终得到最优参数组合：F=600 kN、μ=0.125、v=15 mm·s-1。通过在工厂实际试模中检验，能够获得合格的零件。将数值模拟结果和实际试模进行对比，发现数值模拟结果和实际试模一致，零件无拉裂缺陷，零件局部起皱，起皱区域主要位于切边线以外。试验表明,将数值模拟和正交试验相结合可以有效对冲压成形工艺参数进行优化。

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.

基金项目：

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

参考文献：

［1］沙海,胡建华,罗昱,等. 轮罩外板的冲压数值模拟与拉延筋优化[J]. 锻压装备与制造技术,2016,51(4):81-84.Sha H, Hu J H, Luo Y, et al. Stamping numerical simulation and drawbead optimization for outer panel of wheel cover[J]. China Metal Forming Equipment & Manufacturing Technology,2016,51(4):81-84.
［2］孙慧，贾娟娟.基于Dynaform软件和正交试验相结合的拉深工艺参数优化[J]. 锻压技术，2016，41（3）：148-152.Sun H, Jia J J. Optimization on drawing process parameters based on software Dynaform and orthogonal experiment[J]. Forging & Stamping Technology，2016，41（3）：148-152.
［3］薛峰. 汽车覆盖件冲压成形性分析及回弹研究[D].南京：南京理工大学,2009.Xue F. Stamping Formability Analysis and Springback Research of Automobile Panel[D].Nanjing: Nanjing University of Science and Technology,2009.
［4］陆怀民,窦美霞,张清淼. 汽车覆盖件冲压工艺性的研究与应用[J]. 汽车技术,2009,(1):58-61.Lu H M, Dou M X, Zhang Q M. Research and application of automobile panels stamping technique[J]. Automobile Technology,2009,(1):58-61.
［5］刘世豪,王东方,唐绍华. 基于Dynaform的汽车覆盖件冲压成形仿真研究与应用[J]. 电加工与模具,2008,(S1):45-49.Liu S H, Wang D F, Tang S H. The research and application of the stamping form simulationfor automotive body panels based on dynaform[J].Electromachining & Mould, 2008,(S1):45-49.
［6］刘奎武，边巍.基于Dynaform的波形片成形回弹研究[J].锻压技术, 2015, 40(3):127-130.Liu K W, Bian W. Study on springback in cushion segment forming based on Dynaform[J]. Forging & Stamping Technology, 2015, 40(3):127-130.
［7］兰凤崇,王玉超,陈吉清. 汽车覆盖件冲压成形仿真研究进展[J]. 计算机集成制造系统,2007,13(8):1586-1596.Lan F C, Wang Y C, Chen J Q. Advances in sheet metal forming simulation of automotive body[J]. Computer Integrated Manufacturing Systems, 2007, 13(8):1586-1596.
［8］陈吉清,王玉超,兰凤崇. 基于正交试验的汽车覆盖件冲压工艺参数优化[J]. 计算机集成制造系统,2007,13(12):2433-2440.Chen J Q, Wang Y C, Lan F C. Optimization for stamping process parameters of automotive body parts based on orthogonal experiments[J]. Computer Integrated Manufacturing Systems, 2007,13(12):2433-2440.

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