柔性离散夹钳拉形工艺的数值模拟

›› 2012, Vol. ›› Issue (03): 660-664.

柔性离散夹钳拉形工艺的数值模拟

彭赫力, 李明哲, 付文智, 冯朋晓

吉林大学无模成形技术开发中心, 长春 130022

收稿日期:2011-05-06 出版日期:2012-05-01
通讯作者: 李明哲(1951-),男,教授,博士生导师.研究方向:无模成形及数字化制造.E-mail:limz@jlu.edu.cn E-mail:limz@jlu.edu.cn
基金资助:
欧盟第六框架协议计划国际合作项目 (ASTS-CT -2006-030877).

Numerical simulation of flexible discrete clamp stretch forming process

PENG He-li, LI Ming-zhe, FU Wen-zhi, FENG Peng-xiao

Dieless Forming Technology Center, Jilin University, Changchun 130022, China

Received:2011-05-06 Online:2012-05-01

摘要/Abstract

摘要： 介绍了柔性离散夹钳拉形机的特点,建立了柔性离散夹钳拉伸成形有限元模型。对球形面和鞍形面进行了数值分析,研究了拉形速度、摩擦因数和夹钳形状对成形结果的影响。数值模拟结果表明:在兼顾成形效率和精度的情况下,可选1 m/s为拉形速度。润滑条件越好,成形件应力应变和厚度分布越均匀。与方形夹钳相比,圆形夹钳能有效改善过渡区和夹持区的流动状况,使应变更均匀,减薄量较小。通过实验验证了模拟的正确性,模拟结果对离散夹钳拉形机的优化设计以及实际板材拉形工艺具有指导价值。

关键词: 材料合成与加工工艺, 板料成形, 柔性拉形工艺, 离散夹钳

Abstract: The characters of flexible discrete clamp stretch forming (DCSF) machine were introduced. A FE model of flexible DCSF was built. Spherical surface and saddle surface were selected for simulation. The influences of stretching velocity, friction coefficient and clamp shape on the forming results were researched. The numerical simulation results showed that the stretching velocity 1 m/s is good for satisfactory forming efficiency and accuracy. The better the lubrication condition is, the more homogenous distributions the stress, strain and thickness are. The clamp shape is sensitive to liquidity of transitional area and clamping area, more uniform strain and smaller thinning value were got by circular clamp. The simulated results are validated by experiment. The obtained achievements are useful for the optimal design of DCSF machine and the practical stretch forming process implementation of sheet metal.

Key words: materials synthesis and processing technology, sheet forming, flexible stretch forming process, discrete clamp

中图分类号:

TG306

彭赫力, 李明哲, 付文智, 冯朋晓. 柔性离散夹钳拉形工艺的数值模拟 [J]. , 2012, (03): 660-664.

PENG He-li, LI Ming-zhe, FU Wen-zhi, FENG Peng-xiao. Numerical simulation of flexible discrete clamp stretch forming process[J]. , 2012, (03): 660-664.

参考文献

[1] Wisselink H H, Boogaard A H. Finite element simulation of the stretch-forming of aircraft skins［C］//6th International Conference and Workshop on Numerical Simulation of 3D Sheet Metal Forming Processes, Detroit, AIP CONFERENCE PROCEEDINGS, 2005: 60-65.
[2] Grigore G, Patrick C. Technological Parameter Calculation and Stretch Forming Process Control of 3D Profile Parts［M］. USA: Springer, 2003.
[3] Cai Z Y, Wang S H, Xu D X, et al. Numerical simulation for the multi-point stretch forming process of sheet metal［J］. Journal of Materials Processing Technology, 2009, 209: 396-407.
[4] 侯红亮, 余肖放, 曾元松. 国内航空钣金装备技术现状与发展［J］.航空制造技术,2009,1:34-39. Hou Hong-liang, Yu Xiao-fang, Zeng Yuan-song. Current and development status of sheet metal equipment and technology in Chinese aviation industry［J］. Aeronautical Manufacturing Technology, 2009,1:34-39.
[5] 韩奇钢, 付文智, 冯朋晓, 等.多点成形技术的研究进展及应用现状［J］.航空制造技术, 2010, 24: 87-89. Han Qi-gang, Fu Wen-zhi, Feng Peng-xiao, et al. Research development and application of multi-point forming technology［J］.Aeronautical Manufacturing Technology, 2010, 24: 87-89.
[6] Li M Z, Nakamura K, Watanabe S, et al. Study of the basic principles(1st report: research on multi-point forming for sheet metal)［C］//Proc of the Japanese Spring conf for Technology of Plasticity, Yokohama, 1992: 519-522.
[7] Li M Z, Cai Z Y, Sui Z, et al. Multi-point forming technology for sheet metal［J］. Journal of Materials Processing Technology, 2002, 129(1-3): 333-358.
[8] 陈雪, 李明哲, 付文智, 等. 球形件多钳式柔性拉形的数值模拟［J］.锻压技术, 2010, 35(4): 32-35. Chen Xue, Li Ming-zhe, Fu Wen-zhi, et al. Numerical simulation of multiple grippers flexible stretch forming for spherical part［J］. Forging and Stamping Technology, 2010, 35(4): 32-35.

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