锻压技术

压边力成形窗口建立方法的研究

英文标题：Research on establishment method of BHF forming window

作者：陈玉龙蒋敏赵仕宇詹艳然

分类号：TG386

出版年,卷(期):页码：2013,38(3):42-46

摘要：

在分析板料成形中起皱和破裂判据的基础上，针对变压边力成形提出了建立压边力成形窗口的方法。为了获得区域较大的成形窗口，该方法设计了两种极端的压边力加载模式，即Z形和反Z形加载模式，并通过数值模拟获得了某筒形件成形窗口的上下边界。研究结果表明，不同的极端压边力加载模式可得到不同的成形窗口，出于安全和可靠性考虑，可在多个成形窗口的交集部分选择压边力加载曲线。

Based on the judgments of critical wrinkling and fracturing condition analysis, a method was proposed to build the forming window aiming at the variable blank-holder force (BHF) forming. In order to obtain a larger area of forming window, two extreme BHF loading modes were designed, namely the Z and inverse Z loading mode. And then, the boundary of forming window for a cylindrical cup was got by numerical simulation. Research results show that different extreme BHF loading modes lead to the different forming windows. Considering the safety and reliability, BHF loading curve can be chosen among the intersection of multiple forming windows.

基金项目：

福建省自然科学基金资助项目（2008J0153）；福建省教育厅A类项目（JA12453）

参考文献：

［1］万敏，杨玉英. 圆锥形零件冲压成形极限[J]. 哈尔滨工业大学学报，1995, 27(4): 121-125.Wan M, Yang Y Y. Forming limit of conical cup drawing[J]. Journal of Harbin Institute of Technology, 1995, 27(4): 121-125.
［2］Sun Chengzhi, Chen Guanlong, Lin Zhongqin. Novel algorithm for determining optimal blankholder forces in deep drawing of aluminum alloy sheet[J]. Trans. Nonferrous Met. Soc. China, 2004, 14(4): 676-680.
［3］Shulkin L B, Posteraro R A. Blank holder force control in viscous pressure forming of sheet Metal[J]. Journal of Materials Processing Technology, 2000, 98(1): 7-16.
［4］Lars G, Erik S. Improving the properties of exterior body panels in automobiles using variable blank holder force[J]. Journal of Materials Processing Technology, 2001, 114(2):168-173.
［5］Sheng Z Q, Jirathearanat S, Altan T. Adaptive FEM simulation for prediction of variable blank holder force in conical cup drawing[J]. International Journal of Machine Tools & Manufacture, 2004, 44(5):487-497.
［6］赵军，张双杰. 拉深过程智能化控制中的法兰起皱临界条件[J]. 燕山大学学报，1998, 22(3): 197-201.Zhao J, Zhang S J. Critical flange wrinkle condition in intelligent control of deep drawing process[J]. Journal of Yanshan University, 1998, 22(3): 197-201.
［7］赵军，王祖伟. 拉深过程智能化控制中的破裂失稳临界条件[J]. 燕山大学学报，2000, 24(4): 330-337.Zhao J, Wang Z W. The critical condition for the side\|wall rupture in the intelligent control of deep drawing[J]. Journal of Yanshan University, 2000, 24(4):330-337.
［8］Manabe K, Yang M. Artificial intelligence identification of process parameters and adaptive control sys\|tem for deep\|drawing process[J]. Journal of Material Processing Technology, 2000, 24(4): 330-337.
［9］Lars G, Nader A. In\|process control of blank holder force in axi\|symmetric deep drawing with degressive gas springs[J]. Journal of Material Processing Technology, 1998, 73(13): 89-96.
［10］米昱. 薄板深拉深时压边力的变化规律及其最优控制的研究[D]. 重庆: 重庆大学，2001.Mi Y. Research on the Variation and Control System of Blanking Holder Force in Deep Sheet Drawing Process[D]. Chongqing: Chongqing University, 2001.
［11］于忠奇. 基于LEMAITRE损伤理论的韧性断裂准则建立及板料成形极限准则[D]. 哈尔滨: 哈尔滨工业大学，2003.Yu Z Q. Establishment of a Ductile Fracture Criterion Based on Lemaitre Damage Theory and Prediction of Sheet Metal Forming Limit[D]. Harbin: Harbin Institute of Technology, 2003.

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