Transactions of Materials and Heat Treatment

Title：Optimization on drawing parameters for automobile doorsill inner panel based on orthogonal test

Authors： Deng Changyong Tan Wei Tian Tie

Unit： Chongqing Radio & TV University Chongqing University of Technology Jilin University

KeyWords： automobile doorsill inner panel multi-objective optimization drawing orthogonal test Design-Expert

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2017,42(1):33-36

Abstract：

For wrinkling and cracking in the drawing process of an automobile doorsill inner panel, the experimental scheme design was carried out by orthogonal test, and the parameters were optimized by the finite element simulation software Autoform. In the experiment, the blank hold force F, friction coefficient μ and press downward velocity of forming v were regarded as the optimization factors, and the maximum wrinkling criterion and the maximum thinning rate were regarded as the evaluation targets. Finally, the multi-objective optimization was realized, and the optimal parameters with blank hold force of 1.3×106 N, friction coefficient of 0.125 and press speed of 15 mm·s-1 were obtained by software Design-Expert to deal with orthogonal test results, and the simulation results were verified. The results show that the finite element simulation results are in well agreement with the experimental results, and the orthogonal test and the multi-objective optimization can be applied to optimize the drawing process.

Funds：

重庆市科委商用车变速器协同创新与关键技术攻关项目(cstc2012jcsf-jfzhX0027)

作者简介：邓长勇（1982-），男，硕士，副教授 E-mail：dengcy1982@163.com

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