Transactions of Materials and Heat Treatment

Title：Numerical simulation of multi-directional precision forging process of body frame

Authors： Liu Bing Zhou Zhiming Huang Weijiu Wang Hongchuan Luo Rong Zhang Baoliang

Unit： Chongqing University of Technology Key Laboratory of the Ministry of Education for Advanced Automotive Components Manufacturing Technology Chongqing Key Laboratory of Mould Technology Chongqing Jianshe Industry Co. Ltd.

KeyWords： body frame multi-directional forging precision forming numerical simulation

ClassificationCode：TG31

year,vol(issue):pagenumber：2015,40(11):19-22

Abstract：

The multi-directional forging process of body frame was conducted by finite element simulation software Deform-3D, and the forming properties, the metal flowing rule，the effective strain, the stress distribution and the curve of pressing load were analyzed. The trial products were obtained when the production verification was done. The results show that the metal material fills well, and the qualified product is obtained. The total forming time of a single product is about 1.3 s, and the required load changes gently during the whole forming process. However, sharp increase appears at 0.5 s and 1.1 s, and the maximum forming force is about 2270 kN. The trial products and the simulation results have a good consistency. The shape of body frame is qualified and the flash is reasonable. The flow of materials is in good agreement with that of simulation.

Funds：

重庆市科技攻关项目(cstc2014yykfB60004); 重庆市模具技术重点实验室开放基金资助项目

刘兵（1989-），男，硕士研究生周志明(1976-)，男，博士，教授

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