Numerical analysis of the roller hemming process

Numerical analysis of the roller hemming process
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滚边过程的数值分析

DOI:
10.1007/s00170-011-3822-4
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发表时间:
2012-09
影响因子:
3.4
通讯作者:
Zhongqin Lin
Zhongqin Lin
中科院分区:
工程技术3区
文献类型:
--
作者:
Xing Hu;Yixi Zhao;Sheng Huang;Shuhui Li;Zhongqin Lin

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采用该方法对辊式卷边工艺进行了数值模拟研究。复合硬化用于钢板BSUFD辊式卷边。网格是根据面板的变形状态生成的。工具设置用于翻边、预卷边和最终卷边。通过仿真和实验验证了数值模型的准确性。弯曲区易发生断裂,翻边区易产生起皱。辊上的负载的演变被发现是不同的过程。滚压卷边可以被认为是一种平面应变弯曲变形过程。
Numerical simulation of the roller hemming process is studied in this approach. Combined hardening is used for steel panel BSUFD roller hemming. Meshes are produced based on the deformation state of the panel. Tools are set up for flanging, pre-hemming, and final hemming. Roll-in/out results are obtained through a simulation and an experiment to verify the accuracy of the numerical model. Fracture is likely to occur in the bending area, while wrinkle may be found in the flanging area. The evolution of the load on the roller is found to be different over the process. Roller hemming could be accepted as a kind of plane strain bending deformation process.
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