Transactions of Materials and Heat Treatment

Title：Design and optimization on stamping parameters for lightweight floor parts of a new energy vehicle

Authors： Deng Changyong Dong Shaojiang Tan Wei

Unit： Chongqing Technology and Business Institute Chongqing Jiaotong University Chongqing University of Technology

KeyWords： automobile lightweight stamping orthogonal test multiobjective optimization cracking wrinkling

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2018,43(10):68-71

Abstract：

For lightweight floor parts of a new energy vehicle, the cracking and wrinkling problems during the stamping process were studied, and the process design was optimized by the finite element simulation and experimental design. Then, the maximum thinning rate Y1 and the maximum thickening rate Y2 were taken as the objective functions of the forming quality evaluation, the blank holder force F, friction coefficient μ and lower die pressure speed v were taken as the influencing factors, and the multiobjective optimization was conducted. Furthermore, the experimental scheme was designed by the orthogonal test, and the multiobjective solution is carried out to the established optimization model in DesignExpert. Finally, the optimal combination of stamping parameters with the highest expected value was obtained with the blank holder force F=160 kN, the friction coefficient μ=0.1 and the lower die pressure speed v=2 m·s-1. The reliability of the optimization scheme was verified by the actual trial produce in the factory.

Funds：

重庆市科委基础与前沿研究计划项目(cstc2017jcyj AX0053)；重庆市高等学校青年骨干教师项目(2016-46)

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

Reference：

[1]刘铭心，张东民，吴艳云，等. 基于正交试验的座椅撑板冲压成形回弹研究及优化[J].锻压技术,2017,42(12):36-40.

Liu M X, Zhang D M, Wu Y Y, et al. Springback analysis and optimization on stamping for seat support plate based on orthogonal experiments [J]. Forging & Stamping Technology, 2017, 42(12):36-40.

[2]张海波，孙力伟. 基于正交试验的车顶盖板冲压工艺参数模拟研究[J].锻压技术,2017,42(4):79-84.

Zhang H B, Sun L W. Simulation research on stamping technological parameters of roof cover plate based on orthogonal experiment [J]. Forging & Stamping Technology, 2017, 42(4):79-84.

[3]左佳. 基于Dynaform的小车前门外板冲压工艺参数的优化[D]. 株洲：中南林业科技大学,2017.

Zuo J. The Parameters Optimization of Stamping Forming for the Front Door Plate Based in Dynaform Software [D]. Zhuzhou：Central South University of Forestry & Technology, 2017.

[4]许乔阳，王良芬，韩超，等. 浅谈汽车引擎盖外板刚性不足的原因及预防措施[J].模具工业,2017,43(9):34-37.

Xu Q Y, Wang L F, Han C, et al. Reasons and measurement of rigidity shortage for automobile engine hood outer panel [J]. Die & Mould Industry, 2017,43(9):34-37.

[5]张学文，王冲，缑彦甫，等. 基于CAE技术的顶盖外板结构改进及工艺验证[J].模具工业,2017,43(10):43-46.

Zhang X W, Wang C, Gou Y F, et al. Structure improvement and technology verification of outer plate based on CAE technology [J]. Die & Mould Industry, 2017,43(10):43-46.

[6]谢晖，唐长民，程威，等. 多弯角零件冲压回弹控制方法的研究[J].塑性工程学报,2018,25(1):22-27.

Xie H, Tang C M, Chen W, et al. Study on stamping springback controlling of parts with multi-fillet [J]. Journal of Plasticity Engineering, 2018,25(1):22-27.

[7]覃柏英，秦文东，林贤坤，等. 响应面法在发动机隔热罩冲压成形工艺参数优化中的应用[J].锻压技术,2016,41(3):22-28.

Qin B Y, Qin W D, Lin X K, et al. Application of response surface method to optimize process parameters in engine heat shield forming [J]. Forging & Stamping Technology, 2016,41(3):22-28.

[8]李轩颖，徐雪峰，付春林，等. 某型飞机钛合金钣金件热冲压成形工艺参数优化[J].塑性工程学报,2017,24(1):92-97.

Li X Y, Xu X F, Fu C L, et al. Optimization of hot stamping process parameters for a certain type of aircraft titanium alloy sheet metal parts [J]. Journal of Plasticity Engineering, 2017,24(1):92-97.

Service：

【This site has not yet opened Download Service】【Add Favorite】