锻压技术

直壁筒形件凸模支撑渐进成形工艺的数值模拟

英文标题：Numerical simulation for male die supporting incremental forming process of vertical wall cylinder

作者：冯帆高锦张贾俐俐王洋

分类号：TG376.9

出版年,卷(期):页码：2014,39(2):46-52

摘要：

以ANSYS/LS-DYNA软件为分析平台，构建了凸模支撑渐进成形过程的有限元模型，成功模拟了用平行直线型路径方案渐进成形直壁筒形件的过程，并通过实验验证了该数值模拟方法的可行性。对数值模拟结果进行后处理得到直壁筒形件的应力应变分布、节点运动以及壁厚的变化规律。结果表明，平行直线型路径方案能够成形出壁厚较为均匀的直壁筒形件，在筒形件口部区域等效应力和等效应变达到最大。

The finite element model of incremental sheet forming process with male die supporting was established based on software ANSYS/LS-DYNA. The process for forming a vertical wall cylinder by parallel linear tool-path was successfully simulated and the feasibility of the simulation method was verified by experiments. Distribution of stress and strain, node movement condition and wall thickness variation of the vertical wall cylinder were obtained by post-processing. The results show that the wall thickness of the vertical wall cylinder formed by parallel linear tool-path is relatively uniform. The maximum equivalent stress and equivalent strain are generated near the opening of the cylinder.

基金项目：

先进数控技术江苏省高校重点建设实验室基金开放项目（KXJ05017）

冯帆（1989-），女，硕士研究生

参考文献：

［1］高锦张. 板料数控渐进成形技术[M]. 北京: 机械工业出版社, 2011.Gao Jinzhang. Numerical Control Incremental Sheet Forming Technology [M]. Beijing: China Machine Press, 2011.
［2］李军超, 耿佩, 潘俊杰. 金属板材多道次渐进成形的模拟分析[J]. 热加工工艺, 2012, 41(13):79-84.Li Junchao, Geng Pei, Pan Junjie. Numerical simulation of multistage incremental forming in sheet metal [J]. Hot Working Technology, 2012, 41(13):79-84.
［3］ Elisabetta Cerett, Claudio Giardini, Attanasio. Experimental and simulative results in sheet incremental forming on CNC machines [J]. Journal of Materials Processing Technology, 2004,152: 176-184.
［4］ Myoung-Sup Shim, Jong-Jin Park. The formability of aluminum sheet in incremental forming [J]. Journal of Materials Processing Technology,2001,(113): 654-658.
［5］周六如. 板料数控渐进成形变形区厚度变化规律的研究[J]. 机械工程学报, 2011, 47(18):50-54.Zhou Liuru. Research on the thickness change laws in numerical control incremental sheet forming[J]. Journal of Mechanical Engineering, 2011,47(18):50-54.
［6］李湘吉, 李明哲, 蔡中义. 板料单点渐进成形数值模拟研究[J]. 锻压技术, 2009, 34(4):79-82.Li Xiangji, Li Mingzhe, Cai Zhongyi. Numerical simulation of sheet metal incremental forming [J]. Forging & Stamping Technology, 2009, 34(4):79-82.
［7］肖士昌, 高锦张, 贾俐俐，等. 单道次渐进成形锥形件壁厚均匀临界成形角的研究[J]. 锻压技术, 2012, 37(1): 49-54.Xiao Shichang, Gao Jinzhang, Jia Lili, et al. Research on critical forming angle of uniform thickness in single-path incremental forming for conical part [J]. Forging & Stamping Technology, 2012, 37(1): 49-54.
［8］李迎浩. 金属板材数字化渐进成形过程数值模拟[D]. 武汉: 华中科技大学, 2005.Li Yinghao. Numerical Simulation of Incremental Sheet Metal Digital Forming [D]. Wuhan: Huazhong University of Science and Technology, 2005.
［9］李迎浩, 莫建华. 金属板料渐进成形工艺过程有限元模拟[J]. 锻压装备与制造技术, 2005,40(2): 81-83.Li Yinghao, Mo Jianhua. FEM simulation for sheet metal incremental forming [J]. China Metalforming Equipment & Technology, 2005,40(2): 81-83.
［10］蒋松，高锦张，贾俐俐. 金属板料多道次渐进成形过程的数值模拟[J]. 中国制造业信息化, 2009, 38(9): 17-20.Jiang Song, Gao Jinzhang, Jia Lili. Numerical simulation for multiple-process metal sheet incremental forming[J].Manufacture Information Engineering of China, 2009, 38(9): 17-20.
［11］周六如, 肖祥芷, 莫健华. 金属直壁筒形件数控渐进成形工艺研究[J]. 机械科学与技术, 2004, 23(11): 1366-1369.Zhou Liuru, Xiao Xiangzhi, Mo Jianhua. A study of NC incremental vertical wall cylinder forming process [J]. Mechanical Science and Technology for Aerospace Engineering, 2004, 23(11): 1366-1369.

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