Transactions of Materials and Heat Treatment

Title：Multi-objective optimization on drawing technological parameters of medium channel part

Authors： Li Lei Wu Xiaojun

Unit： Chongqing Industry Polytechnic College

KeyWords： drawing medium channel part orthogonal test multi-objective optimization finite element numerical simulation

ClassificationCode：TG386.1

year,vol(issue):pagenumber：2017,42(5):30-33

Abstract：

For the defects of medium channel part prone to crack and wrinkle, the forming process and addendum surface were obtained by process analysis and addendum design. Then, the drawing process model was established by the finite element software Autoform, and the blank hold force, friction coefficient and resistance coefficient of drawbeads were chosen as the influence factors after preliminary simulation. Furthermore, an orthogonal test was designed to optimize the drawing process parameters. The maximum thinning rate and wrinkling evaluation function were chosen as the optimized objective functions, and the optimal combination of process parameters was obtained by the multi-objective optimization method. The optimized parameters were used in the die tryout, and the medium channel part without crack and wrinkle defects could be obtained.

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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