Transactions of Materials and Heat Treatment

Title：Research on lightweight of automobile stamping die based on numerical simulation

Authors： Wang Hui1 2 Liu Lizi1 2 Wang Haibao1 2 Zhou Jie3 Zhuo Fang3

Unit： 1. College of Mechanical Engineering Chongqing Three Gorges University Chongqing 404130 China  2. Chongqing Light Alloy Materials and Processing Engineering Technology Research Center Chongqing 404130 China 3. College of Materials Science and Engineering Chongqing University Chongqing 400044 China

KeyWords： stamping die lightweight deformation displacement die structure optimization

ClassificationCode：TG386

year,vol(issue):pagenumber：2019,44(5):116-120

Abstract：

For the stamping die of casting base for automobile cover part, the lightweight optimization method of automobile stamping die was studied by numerical simulation. Taking the automobile rear floor as the research object, the drawing process was simulated by numerical simulation software, and the load in the drawing process was obtained. Then, the maximum load of punch was mapped to the die surface divided by the meshes, the finite element model with the static analysis was established, and the maximum deformation displacement of original punch was 0.0324 mm. Furthermore, the structure of the punch was optimized according to the lightweight optimization method, the weight of the optimized punch was 2772 kg, and the maximum deformation displacement was 0.0297 mm. Compared with the original punch, the weight of punch is reduced by 20% and the maximum deformation displacement is reduced after optimization. The numerical simulation results show that the method can effectively reduce the weight of die on the premise of ensuring the rigidity of die.

Funds：

重庆市教委科学技术研究项目（KJQN201801228）；重庆市高校工程研究中心基金（2019yjzx0101）

作者简介：王辉(1989-)，男，博士，讲师 Email：wanghui@sanxiau.edu.cn

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