Transactions of Materials and Heat Treatment

Title：Robustness analysis on drawing and optimization on process parameters for

Authors： Luo Jianghong Zhang Yanbin Baktenur Jumaly

Unit： Xinjiang Vocational and Technical College of Communications Urumqi

KeyWords： A-pillar reinforcement stamping drawing multi-objective optimization numerical simulation

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2018,43(11):33-37

Abstract：

Based on the software platform AutoForm, the forming process of A-pillar reinforcement for a certain type of automobile was studied by combining the Sigma module with the response face, and the forming defects of parts were solved. First, according to the shape of part, the process addendum surface was designed, and the finite element model was established. Then, the influences of process parameters on the forming quality of part were analyzed by Sigma module, and the main factors and value range influencing forming results were obtained. Based on the response surface method, the influences of process parameters such as the segmented drawbead resistance coefficient x1, x2, x3, x4 and the blank holder force x5 on the thinning rate and formability of reinforced parts were studied, and the optimum forming process parameters with x1=0.45, x2=0.30, x3=0.45, x4=0.30, x5=100 kN were obtained by establishing a multi-objective optimization model. Furthermore, the actual production test was conducted by the optimized process parameters. The test results are basically consistent with the simulation results to get the parts with good surface quality, small shape error and high dimensional precision.

Funds：

新疆维吾尔自治区高校科研计划重点项目（XJEDU 2014I062）

罗江红（1972-），女，硕士，副教授,E-mail：ljhongxj@163.com

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