带底部法兰筒形件切旋成形工艺研究
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摘要
旋压成形工艺是一种少/无切削、成形力小的渐进成形技术,广泛应用于现代制造业。针对带底部法兰的筒形件提出一种切旋两步成形工艺,采用有限元方法对不同参数条件下的旋压成形过程进行数值模拟,得到旋轮倾角、旋轮圆角半径以及进给比等因素对成形过程中成形力大小和坯料的筒壁厚度分布以及应变分布的影响,并通过试验验证了工艺的可行性。
Spinning forming process is an incremental forming process with no or little cutting and low forming load,which is widely used in the modern manufacturing industry. In this paper, a two-step dividing spinning process for forming a cylinder part with a bottom flange was proposed and studied. The numerical simulations for the spinning process were carried on using finite element method, considering process parameters such as incline angle of the roller, the radius of roller's fillet,the friction coefficient and the feed ratio. The influences of these parameters on forming load and distribution of wall thickness and strain during the process were obtained and analyzed. The feasibility of the process was confirmed by experiments.
Spinning forming process is an incremental forming process with no or little cutting and low forming load,which is widely used in the modern manufacturing industry. In this paper, a two-step dividing spinning process for forming a cylinder part with a bottom flange was proposed and studied. The numerical simulations for the spinning process were carried on using finite element method, considering process parameters such as incline angle of the roller, the radius of roller's fillet,the friction coefficient and the feed ratio. The influences of these parameters on forming load and distribution of wall thickness and strain during the process were obtained and analyzed. The feasibility of the process was confirmed by experiments.
引文
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[8]XU W,ZHAO X,SHAN D,et al.Numerical simulation and experimental study on multi-pass stagger spinning of internally toothed gear using plate blank[J].Journal of Materials Processing Technology,2016,229:450-466.
[9]HAUK S,VAZQUEZ V H,ALTANT.Finite element simulation of the flowsplitting-process[J].Journal of Materials Processing Technology,2000,98(1):70-80.
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[11]梁卫抗,刘全坤,张宜生,等.发动机减震器带轮内筒的铲旋成形模拟及试验[J].塑性工程学报,2011,18(3):66-69.LIANG Weikang,LIU Quankun,ZHANGYisheng,et al.Simulation and experiment on the forming of inner cylinder of engine absorber pulley by shovel spinning technology[J].Journal of Plasticity Engineering,2011,18(3):66-69.
[12]BACKOKEN W A,TURNER I R,AVERY D H.Superplasticity in an Al-Zn alloy[J].ASM Transactions,1964,57(6):980-990.
[2]赵云豪.旋压技术现状[J].锻压技术,2005(5):95-97.ZHAO Yunhao.Present situation of spinning technology[J].Forging&Stamping Technology,2005(5):95-97.
[3]吴磊,刘彬.旋压技术的研究现状[J].装备制造技术,2016(9):70-73.WU Lei,LIU Bin.Research status of spinning technology[J].Equipment Manufacturing Technology,2016(9):70-73.
[4]刘建华,杨合,李玉强.旋压技术基本原理的研究现状与发展趋势[J].重型机械,2002(3):1-4.LIU Jianhua,YANG He,LI Yuqiang.State of the art and trend of metal spinning technique[J].Heavy Machinery,2002(3):1-4.
[5]JIN J S,DENG L,WANG X Y,et al.A new rotary forming process for rim thickening of a disc-like sheet metal part[J].Journal of Materials Processing Technology,2012,212(11):2247-2254.
[6]吴文魁,金俊松,王新云,等.热旋压轮缘对称增厚成形数值模拟及实验研究[J].锻压技术,2018,43(10):95-103.WU Wenkui,JIN Junsong,WANG Xinyun,et al.Numerical simulation and experiment investigation on symmetric thickening forming process for hot spinning rim[J].Forging&Stamping Technology,2018,43(10):95-103.
[7]夏琴香,王甲子,王映品,等.多楔带轮旋压增厚成形阶段金属流动规律分析[J].锻压技术,2009,34(6):101-106.XIA Qinxiang,WANG Jiazi,WANGYingpin,et al.Analysis on metal flow and deformation mechanism during thickening process of poly wedge pulley spinning[J].Forging&Stamping Technology,2009,34(6):101-106.
[8]XU W,ZHAO X,SHAN D,et al.Numerical simulation and experimental study on multi-pass stagger spinning of internally toothed gear using plate blank[J].Journal of Materials Processing Technology,2016,229:450-466.
[9]HAUK S,VAZQUEZ V H,ALTANT.Finite element simulation of the flowsplitting-process[J].Journal of Materials Processing Technology,2000,98(1):70-80.
[10]HUANG L,ZENG R,ZHANG X,et al.Study on plastic deformation behavior of hot splitting spinning of TA15 titanium alloy[J].Materials&Design,2014,58:465-474.
[11]梁卫抗,刘全坤,张宜生,等.发动机减震器带轮内筒的铲旋成形模拟及试验[J].塑性工程学报,2011,18(3):66-69.LIANG Weikang,LIU Quankun,ZHANGYisheng,et al.Simulation and experiment on the forming of inner cylinder of engine absorber pulley by shovel spinning technology[J].Journal of Plasticity Engineering,2011,18(3):66-69.
[12]BACKOKEN W A,TURNER I R,AVERY D H.Superplasticity in an Al-Zn alloy[J].ASM Transactions,1964,57(6):980-990.