Transactions of Materials and Heat Treatment

Title：Research on the egg-box structure forming process with numerical simulation

Authors： Wang Yuan Zang Yong Li Xiaolong

Unit： University of Science and Technology Beijing

KeyWords： egg-box structure punch radius friction coefficient forming limit height the maximum forming force finite element simulation

ClassificationCode：TG382

year,vol(issue):pagenumber：2017,42(10):51-56

Abstract：

The egg-box structure is a novel structure with lightweight, high strength and excellent energy absorption characteristics, and its forming process and final shape have great influence on its performance. At first, the forming process and force condition of the eggbox structure were described briefly, and the forming process of the typical egg-box structure was simulated by the Abaqus/Explicit software. Then, the final shape, reduction rate and forming force at the limit forming height were obtained. Finally, the influences of punch structural parameters and friction coefficient on the forming process of the egg-box structure were studied respectively. The results show that the limit forming height and forming force are both increased with the increasing of punch radius, and the maximum thinning position moves outward from the punch vertex by changing the friction coefficient. Thus, when the selected punch radius is 1/5 times of the period spacing and the friction coefficient is between 0.1 and 0.15, the forming efficiency is best.

Funds：

中央高校基本科研业务费（FRF-TP-16-010A3）；工信部2016年智能制造综合标准化与新模式应用项目：装备复杂零部件个性化快速定制智能制造新模式

作者简介：王远（1989-），男，博士研究生，E-mail：b20120344@xs.ustb.edu.cn；通讯作者：臧勇（1963-），男，硕士，教授，博士生导师，E-mail：yzang@ustb.edu.cn

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