Optimization of die fillet in bending process of high strength steel sheet DP780

被引：0
|
作者：
Dong W. [1 ,2 ]
Wen J. [1 ]
Xu L. [1 ]
Lin Q. [1 ]
Li L. [2 ]
机构：
[1] School of Mechanical Engineering, Xiangtan University, Xiangtan
[2] State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha
来源：
Lin, Qiquan (xtulqq@163.com) | 2018年 / Central South University of Technology卷 / 49期
基金：
中国国家自然科学基金;
关键词：
Bending; DP780 high strength steel sheet; Optimization of die fillet; Wear depth;
D O I：
10.11817/j.issn.1672-7207.2018.11.008
中图分类号：
学科分类号：
摘要：
Considering that there are die failures and workpiece surface damages in sheet metal forming process, wear depth prediction and die fillet optimization in U-bending process with DP780 high strength steel sheet were investigated by finite element method(FEM) numerical simulation and experiments. The results show that the prediction of galling zone by FEM-Archard wear model agrees with the experimental result. The wear depth on die surface is influenced by the die fillet radii and shape. The wear depth decreases with the increase of the die fillet radii, and the shape of deviant-elliptic arc has the best anti-galling performance. © 2018, Central South University Press. All right reserved.
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页码：2692 / 2699
页数：7
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