金属波纹管单点增量成形过程研究
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摘要
将单点增量成形技术引入金属波纹管成形,提出了一种金属波纹管单点增量成形工艺。基于ABAQUS/Explicit建立增量成形波纹管仿真模型,分析成形过程中成形力的演变,以及成形应力、材料局部变形位移和塑性应变分布的特点;建立了波纹管单点增量成形实验平台,采集成形过程数据并分析实验数据。结果表明:X向分力在增量成形管壁中的数值最大,其次是Y向分力和Z向分力;斜面拉伸区和圆弧过渡区的塑性应变大,该区域管壁容易发生过度减薄和断裂。
Single point incremental forming technology was introduced into the metal corrugated tubes forming processes,and a single point incremental forming processes of metal corrugated tubes was presented.Finite element model of single point incremental forming of metal corrugated tubes was established based on ABAQUS/Explicit.Analysis results show that the evolution of forming forces,forming stresses,local deformation displacements,and plastic strain distributions in the forming processes.An experimental platform for single point incremental forming was set up.These data of the forming processes were collected,and the experimental data were analyzed.The results show that this component in X direction forces in the incremental forming force of the tube wall is the largest,followed by Y direction and Z direction.There is a large plastic strain in inclined wall areas and the circular-arc surfaces,which has easily leads to the thickness thinning and cracking of tube walls.
Single point incremental forming technology was introduced into the metal corrugated tubes forming processes,and a single point incremental forming processes of metal corrugated tubes was presented.Finite element model of single point incremental forming of metal corrugated tubes was established based on ABAQUS/Explicit.Analysis results show that the evolution of forming forces,forming stresses,local deformation displacements,and plastic strain distributions in the forming processes.An experimental platform for single point incremental forming was set up.These data of the forming processes were collected,and the experimental data were analyzed.The results show that this component in X direction forces in the incremental forming force of the tube wall is the largest,followed by Y direction and Z direction.There is a large plastic strain in inclined wall areas and the circular-arc surfaces,which has easily leads to the thickness thinning and cracking of tube walls.
引文
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[11] BECKER C,TEKKAYA A E,KLEINER M.Fundamentals of the Incremental Tube Forming Process[J].CIRP Annals-Manufacturing Technology,2014,63(1):253-256.
[12] MOHEBBI M S,AKBARZADEB A.Experimental Study and FEM Analysis of Redundant Strains in Flow Forming of Tubes[J]. Journal of Materials Processing Tech.,2010,210(2):389-395.
[13] KUWABARA T.Advances in Experiments on Metal Sheets and Tubes in Support of Constitutive Modeling and Forming Simulations[J].International Journal of Plasticity,2007,23(3):385-419.
[14] MOHEBBI M S,AKBARZADEH A.A Novel Spinbonding Process for Manufacturing Multilayered Clad Tubes[J]. Journal of Materials Processing Technology,2010,210(3):510-517.*
[2] BELYAEV A K,ZINOVIEVA T V,SMIRNOV K K. Theoretical and Experimental Studies of the Stress-strain State of Expansion Bellows as Elastic Shells[J]. St. Petersburg Polytechnical University Journal:Physics and Mathematics,2017,3(1):7-14.
[3] BEHERAA A K,de SOUSAB R A,INGABAO G,et al. Single Point Incremental Forming:an Assessment of the Progress and Technology Trends from2005 to 2015[J]. Journal of Manufacturing Processes,2017,27:37-62.
[4] LI P,HE J,LIU Q,et al. Evaluation of Forming··Forces in Ultrasonic Incremental Sheet Metal Forming[J].Aerospace Science&Technology,2017,63:132-139.
[5] TERAMAE T,MANABE K,UENO K,et al.Effect of Material Properties on Deformation Behavior in Incremental Tube-burring Process Using a Bar Tool[J]. Journal of Materials Processing Technology,2007,191(1):24-29.
[6] YANG C,WEN T,LIU L T,et al. Dieless Incremental Hole-flanging of Thin-walled Tube for Producing Branched Tubing[J]. Journal of Materials Processing Technology,2014,214(11):2461-2467.
[7] RAUJOL-VEILLéJ,TOUSSAINT F,TABOUROT L,et al.Experimental and Numerical Investigation of a Short,Thin-walled Steel Tube Incremental Forming Process[J]. Journal of Manufacturing Processes,2015,19:59-66.
[8] ALVES M L,ALMEIDA B P P,ROSA P A R,et al.End Forming of Thin-walled Tubes[J].Journal of Materials Processing Technology,2006,177(1/3):183-187.
[9]程秀全,冯万林,夏琴香.非轴对称管件缩径旋压的数值模拟与参数优化的研究[J].塑性工程学报,2008,15(4):61-66.CHENG Xiuquan,FENG Wanlin,XIA Qinxiang.The Study on the Numerical Simulation of Non-axisymmetric Tube Neck-spinning and Process Parameters Optimization[J].Journal of Plasticity Engineering,2008,15(4):61-66.
[10] WEN T,YANG C,ZHANG S,et al.Characterization of Deformation Behavior of Thin-walled Tubes during Incremental Forming:a Study with Selected Examples[J].The International Journal of Advanced Manufacturing Technology,2015,78(9):1769-1780.
[11] BECKER C,TEKKAYA A E,KLEINER M.Fundamentals of the Incremental Tube Forming Process[J].CIRP Annals-Manufacturing Technology,2014,63(1):253-256.
[12] MOHEBBI M S,AKBARZADEB A.Experimental Study and FEM Analysis of Redundant Strains in Flow Forming of Tubes[J]. Journal of Materials Processing Tech.,2010,210(2):389-395.
[13] KUWABARA T.Advances in Experiments on Metal Sheets and Tubes in Support of Constitutive Modeling and Forming Simulations[J].International Journal of Plasticity,2007,23(3):385-419.
[14] MOHEBBI M S,AKBARZADEH A.A Novel Spinbonding Process for Manufacturing Multilayered Clad Tubes[J]. Journal of Materials Processing Technology,2010,210(3):510-517.*