Transactions of Materials and Heat Treatment

Title：Simulation analysis on necking process of tube

Authors： Yuan Jie Li Jian Dou Fenglou Zhang Yuning

Unit： Guangxi University of Science and

KeyWords： tube necking ABAQUS numerical simulation

ClassificationCode：TG376.3

year,vol(issue):pagenumber：2015,40(6):50-55

Abstract：

To forecast the forming situation and deformation regularity of the tube under various loading paths, and to reduce the development cost and test cost of tube necking processes, the necking processes of tube were simulated by ABAQUS non-linear finite element software. The calculation model was verified by comparing the experimental results with numerical simulation results. Based on the above results, the influences of different friction coefficients and the feeding speeds on the forming quality of the necking tube were analyzed. The results show that the friction coefficient and the feeding speed have close relationship with the plastic deformation of the tube. A better necking result can be obtained when the friction coefficient is 0.15 or 0.2, and the feeding speed is 70 mm·s-1. Thus the plastic instability and material accumulation can hardly appear and this is an effective reference for the engineering application in tube necking process.

Funds：

广西高等学校优秀中青年骨干教师培养工程(GXQG012013032)；广西学位与研究生教育改革和发展专项课题(JGY2014117)

袁杰(1989-)，男，硕士研究生;通讯作者：李健(1980-)，男，博士，教授

Reference：

［1］张豫宁，李健，李彬，等. 微型车后桥液力成形工艺的理论与仿真研究[J]. 锻压技术，2014，39(9):143-149.Zhang Y N,Li J,Li B,et al. Theory and simulation study on hydraulic bulging process of mini-car rear axle[J]. Forging & Stamping Technology,2014,39(9):143-149.
［2］薛克敏,郭福林,徐迎强,等. 汽车桥壳机械式胀形关键技术[J]. 塑性工程学报,2012,19(5): 88-91.Xue K M,Guo F L,Xu Y Q,et al. Research on key technology of mechanical bulging process of automobile axle housing[J]. Journal of Plasticity Engineering,2012,19(5): 88-91.
［3］Ceretti E,Braga D,Giardini C. Optimization of process parameters and part geometry for high diameter tube hydroforming[J]. International Journal of Materials Forming,2010,3(1): 271-274.
［4］张宾宾,李萍,唐勇. 汽车桥壳管坯推压缩径工艺研究[J]. 精密成形工程,2010,2(3): 46-49.Zhang B B,Li P,Tang Y. A technical study on the multi-step extruded sinking process of auto mobile axle housing tube[J]. Journal of Net Shape Forming Engineering,2010,2(3): 46-49.
［5］Zhi J,Jie Z,Jin J. Influence analysis of area reduction for necking in twice-stage cross wedge rolling[J]. International Journal of Advanced Manufacture Technology,2013,66: 1407-1413.
［6］彭俊阳,付渊,王勇. 缩径过程中的壁厚变化实验[J]. 塑性工程学报,2012,19(3):60-63.Peng J Y,Fu Y,Wang Y. Experimental investigation on thickness changes during necking process[J]. Journal of Plasticity Engineering,2012,19(3):60-63.
［7］崔亚平,王连东,杨立云. 胀-压复合成形汽车桥壳预成形管坯的设计及成形试验[J]. 中国机械工程,2012,23(21): 2577-2580.Cui Y P,Wang L D,Yang L Y. Design and experiment of preforming tube for bulging-pressing compound-deforming automobile axle housing[J]. China Mechanical Engineering,2012,23(21): 2577-2580.
［8］李纪龙,杜长春,李萍. 方管旋压缩径工艺研究[J]. 精密成形工程,2012,4(6): 12-15.Li J L,Du C C,Li P. Necking-spinning process research on square tube[J]. Journal of Net Shape Forming Engineering,2012,4(6): 12-15.
［9］唐巧生，王谌，李鸣. 摩擦条件对无缝异径管冷成形的影响研究[J]. 锻压技术，2011,36(6):145-148.Tang Q S,Wang C,Li M. Effect of friction condition on seamless reducer cold forming process[J]. Forging & Stamping Technology,2011,36(6):145-148.
［10］秦乐,孟继安,李志信. 交叉缩放椭圆管冷压成形的数值模拟[J]. 工程力学,2007,24(2):172-177.Qin L,Meng J A,Li Z X. Numerical analysis of cold forming for alternating elliptical axis tube[J]. Engineering Mechanics,2007,24(2):172-177.
［11］许泽川. 微小型薄壁内沟槽管缩径机理研究[D]. 广州: 华南理工大学,2010.Xu Z C. Study on Neck-shrinkage Mechanism of Micro Thin-wall Inner Grooved Tube[D]. Guangzhou：South China University of Technology,2010.
［12］高鹏飞. 汽车后桥壳液压胀形工艺的数值模拟[D]. 秦皇岛:燕山大学,2005.Gao P F. Numerical Simulation of Hydroforming Process for Automobile Rear Axle Housing[D]. Qinhuangdao: Yanshan University,2005.
［13］陈国强,王连东,韩晓亮. 半滑动式液压胀形汽车桥壳的模具设计及成形[J]. 塑性工程学报,2011,18(3): 61-65.Chen G Q,Wang L D,Han X L. The die design and deformation analysis of half-sliding hydroforming of automobile axle housings[J]. Journal of Plasticity Engineering,2011,18(3): 61-65.
［14］梁晨,程嘉,王连东,等. 汽车桥壳液压胀形的数值模拟及其实验研究[J]. 锻压技术,2009,34(1):157-160.Liang C,Cheng J,Wang L D,et al. Study on numerical simulation and test of hydro-bulging axle housings[J]. Forging & Stamping Technology,2009,34(1): 157-160.

Service：

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