Transactions of Materials and Heat Treatment

Title：Fast trimming line and flanging analysis of auto panel

Authors： ZHANG Zhi-bing WANG Tong-jun LIU Yu-qi DU Ting LI Zhi-gang (State Key Laboratory of Material Processing and Die and Mould Technology Huazhong University ofScience and Technology Wunan 430074 China)

Unit：

KeyWords： trimming line flanging inverse approach UGNX/Open development

ClassificationCode：U468.22

year,vol(issue):pagenumber：2008,33(4):140-145

Abstract：

The trimming line and flanging analysis system(TFA) of sheet metal forming was developed on UGNX platform.Based on the inverse approach,the trimming line and the formability of the sheet metal at local flanging area could be predicted from the geometry of the designed part.The seamless operation of flanging analysis in the modeling platform of UGNX could avoid the switch time and data precision loss between the CAE and CAD systems. The system could work as an assistant tool for product design engineers and process engineers,to predict and optimize the flanging process at the preliminary design stage.To verify the accuracy and efficiency of TFA,local trimming and flanging on a fender part of auto panel were presented and the numerical results were compared with those obtained by experiments.

Funds：

国家自然科学基金资助项目(50575080);; 国家科技支撑计划资助项目(2006BAF01A43)

Reference：

[1]纪莲清,谢欢.内孔翻边时变形区应力应变规律研究[J].锻压技术,2007,32(1):20-23.
[2]Hu P,Li D Y,Li Y X.Analytical models of stretch and shrinkflanging[J].Int.J.Mach.Tools and Manufacture,2003,43:1367-1373.
[3]Haydar Livatyali,Gary L Kinzel,Taylan Altan.Computer ai-ded die design of straight flanging using approximate numerical a-nalysis[J].J.Mates.Proc.Tech.,2003,142:532-543.
[4]Xu Feng,Lin Zhongqin,Li Shuhui,et al.Study on the influ-ences of geometrical parameters on the formability of stretchcurved flanging by numerical simulation[J].J.Mates.Proc.Tech.,2004,145:93-98.
[5]胡平,刘海鹏,柳玉起.厚钣金件压弯翻边与回弹的数值研究[J].固体力学学报,2002,23(1):72-80.
[6]Huang You-Min,Chien Kuo-Hsiung.The formability limita-tion of the hole-flanging process[J].J.Mates.Proc.Tech.,2001,117:43-51.
[7]漆伟,韩利芬,钟志华.汽车覆盖件翻边工序的CAE仿真及应用[J].计算机仿真,2003,20(12):104-106.
[8]Guo Y Q,Batoz J L,Detraux J M,et al.Finite element proce-dures for strain estimations of sheet metal forming parts[J].Int.J.Numer.Meth.Eng.,1990,30:1385-1401.
[9]Liu Yuqi,Li Zhigang,Yan Yakun.Fast accurate prediction ofblank shape in sheet metal stamping forming[J].ACTA Me-chanica Solida Sinica,2004,17:36-42.(第十届全国塑性工程学术年会论文选登)

Service：

【This site has not yet opened Download Service】【Add Favorite】