Transactions of Materials and Heat Treatment

Title：Numerical analysis of springback for V-shaped pieces based on Dynaform

Authors： Huang Wei Li Mengqun Yang Yawei

Unit： North University of China Ningbo Industrial Technology Research Institute Chinese Academy of Sciences

KeyWords： Sheet metal forming V-shaped pieces springback orthogonal experiment numerical simulation

ClassificationCode：TG386

year,vol(issue):pagenumber：2014,39(6):118-121

Abstract：

In view of the springback phenomenon in sheet metal forming process, a method that colud reduce springback in the metal stamping process was proposed. The effect of friction factor, sheet thickness, blank holder force, clearance between punch and die and other factors on stamping springback was simulated and calculated using the orthogonal test of four factors and three levels. The influence law of factors on spingback was found out. The numerical simulation results indicate that the amount of spingback of V-shaped pieces decreases with the increase of blank holder force, the springback angle increases with the increase of clearance between punch and die, the springback is smaller when the friction lubrication condition is poorer, and the changes in the sheet thickness can affect the springback too.

Funds：

Reference：

［1］赵叶锋. U形件弯曲回弹的数值模拟及预测与优化控制[D]. 扬州: 扬州大学, 2005.Zhao Yefeng. U-shaped Pieces of Numerical Simulation and Springback Prediction and Optimal Control[D]. Yangzhou:Yangzhou University, 2005.
［2］官英平,张庆,赵军. 中性层内移对弯曲回弹的影响[J]. 锻压技术, 2007,32(2): 26-28.Guan Yingping, Zhang Qing, Zhao Jun. Neutral layer shift on bending springback [J]. Forging & Stamping Technology, 2007,32(2): 26-28.
［3］朱阳春,吴向东,万敏,等. 超高强钢板V形弯曲回弹影响因素有限元分析 [J]. 锻压技术, 2012,37(5): 31-34.Zhu Yangchun,Wu Xiangdong, Wan Min,et al. Ultra high strength steel V-shaped bending springback Finite element analysis[J]. Forging & Stamping Technology, 2012,37(5): 31-34.
［4］王秀凤,郎利辉. 板料成型CAE设计及应用基于DYNAFORM [M]. 北京: 北京航空航天大学出版社, 2007.Wang Xiufeng, Lang Lihui. Sheet Metal Forming CAE design and Application Based on DYNAFORM [M]. Beijing: Beijing University of Aeronautics and Astronautics Press, 2007.
［5］Wang Jie, Verma S, Alexander R, et al. Springback control of sheet metal air bending process [J]. Journal of Manufacturing Processes,2008, 10（1）：21-27.
［6］郭磊,贾维平,杜坤,等. AM50A镁合金U形件回弹影响因素分析[J]. 辽宁科技大学学报, 2012, 35（4）: 360-364.Guo Lei, Jia Weiping, Du Kun,et al. AM50A magnesium alloy U-shaped piece springback influencing factors [J].Journal of University of Science and Technology Liaoning, 2012,35(4): 360-364.
［7］柳建安,段艳强,刘佳杰. 基于Dynaform的弯曲回弹影响因素的研究[J]. 机床与液压, 2012,40(22): 22-23.Liu Jianan, Duan Yanqiang, Liu Jiajie. Based Dynaform bending springback influencing factors[J]. Machine Tool & Hydraulics, 2012,40(22): 22-23.
［8］王宁,梅自元,周长国. 基于正交试验的车身覆盖件冲压成形回弹分析[J]. 机械设计与制造, 2008,(10): 117-119.Wang Ning, Mei Ziyuan,Zhou Changguo. Based on orthogonal body panel stamping springback analysis [J]. Mechanical Design and Manufacturing, 2008,(10): 117-119.
［9］黄义关,李彦波,刘红武. 基于JSTAMP/NV的汽车横梁回弹分析[J]. 计算机辅助工程,2013,22（2）:77-80.Huang Yiguan , Li Yanbo, Liu Hongwu. Based JSTAMP/NV car beams springback analysis [J]. Computer Aided engineering, 2013,22（2）:77-80.
［10］李玉青. 轿车后部加强板回弹问题的补偿方法[J]. 机械设计与制造工程,2013,(7): 63-65.Li Yuqing. Sedan rear stiffener springback compensation method [J]. Mechanical Design and Manufacturing Engineering ,2013,(7):63-65.
［11］Zhang Dongjuan, Cui Zhenshan, Chen Zhiying,et al. An analytical model for predicting sheet springback after V-bending[J]. Journal of Zhejiang University(Science A:An International Applied Physics & Engineering Journal), 2007,8(2):237-244.
［12］张深,吴建军. 空间弯管的回弹预测[J]. 航空学报, 2011,32（5）: 953-960.Zhang Shen, Wu Jianjun. Space bend springback prediction[J]. Acta Aeronautica et Astronaution Sinica, 2011,32(5): 953-960.
［13］林策,彭艳,孙建亮,等. 板形缺陷板料冲压变形及回弹仿真分析[J]. 锻压技术, 2012,37(6): 174-178.Lin Ce, Peng Yan, Sun Jianliang, et al. Flatness defects sheet metal deformation and springback simulation analysis [J]. Forging & Stamping Technology, 2012,37(6): 174-178.

Service：

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