Transactions of Materials and Heat Treatment

Title：Design and optimization of drawbead of oil pan drawing based on numerical simulation

Authors： Li Qihan Wang Wenguang Deng Yi Zhang Xiaolin Lin Xiubo Liu Haijing

Unit： Changchun University of Technology

KeyWords： oil pan numerical simulation stamping Dynaform drawbead

ClassificationCode：TG386

year,vol(issue):pagenumber：2014,39(12):31-35

Abstract：

For the defects of wrinkling, rupture and the inadequate forming in the drawing process of oil pan, the drawing process of oil pan was numerical simulated by Dynaform software, and the influence of drawbead setting on the quality of oil pan drawing was discussed. The simulation results show that the reasonable process parameters can be gained by equivalent drawbead. The segmented drawbead is more conformed to the requirements of the drawing than equispaced drawbead. The height and radius of the optimized segmented semicircle drawbead were H=2 mm, R=3 mm for drawbead 1 and drawbead 3 respectivly, H=5 mm, R=3 mm for drawbead 2 and drawbead 4. The real simulation of drawbeads that better reflecting the state of the drawing parts is determined. Then, the real segmented drawbead drawing was adopted in the test. The results show that the forming effect of the part is good without drawing defects of folds or rupture in the trimming area, and the maximum thinning rate of parts is 20.3%.

Funds：

吉林省教育厅“十二五”科学技术研究项目（吉教科合字[2011]第89号）

李奇涵（1970-），男，博士，教授

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