板材单点渐进成形数值模拟分析
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摘要
单点渐进成形是一种能够利用数字化制造将塑性成形和快速成形技术相结合,且适用于高强度材料成形的柔性成形技术。利用ANSYS/LS-DYNA软件建立单点渐进成形的有限元模型,模拟板材单点渐进成形的变形过程,通过分析成形件的应力状态验证了渐进成形过程符合双向拉应力理论;此外,通过研究在不同水平进给量、深度进给量和层间进给方式下成形件板材减薄率的变化,获得水平进给量、深度进给量和层间进给方式对板材成形的影响规律。
Single point incremntal formingtechnology is suitable for high-strength material deforming,which combines the plastic forming and rapid prototyping technology.And it became the hot point in metal sheet forming research field.The forming path is the most important point,as is independent of forming tool.The finite-element model of single point incremental forming is set up in ANSYS/LS-DYNA.Then the effects of horizontal feed.Vertical feed and the way of story feed on the plastic deformation of sheet workpiece are obtained through the numerical simulation.
Single point incremntal formingtechnology is suitable for high-strength material deforming,which combines the plastic forming and rapid prototyping technology.And it became the hot point in metal sheet forming research field.The forming path is the most important point,as is independent of forming tool.The finite-element model of single point incremental forming is set up in ANSYS/LS-DYNA.Then the effects of horizontal feed.Vertical feed and the way of story feed on the plastic deformation of sheet workpiece are obtained through the numerical simulation.
引文
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[5]马琳伟.金属板材单点渐进成形数值模拟和机理研究[D].武汉:华中科技大学,2008.
[6]程兆辉.高压水射流渐进成形技术研究[D].长春:吉林大学,2008.
[7]彭守桃.金属板料渐进成形数值模拟及工艺研究[D].重庆:重庆大学,2010.
[8]安治国,庞鹏辉,陈科衡,等.有模单点渐进成形工艺参数对1060铝合金成形性能的影响[J].锻压技术,2017,42(11):94-98+171.
[9]周建宇,杨明顺,李言,等.金属板料单点渐进成形自适应螺旋线轨迹生成研究[J].机械科学与技术,2017,36(10):1562-1569.
[10]王华毕,桑文刚,魏目青.金属板料单点渐进成形性能的研究[J].机械设计与制造,2017(1):108-111.
[2]Jain R K,Jain V K,Dixit P M.Modeling of material removal and surface roughness in abrasive flow machiningprocess[J].International Journal of Machine Tools&Manufacture,1999,39(12):1903-1923.
[3]Hallquist J O,Wainscott B,Schweizerhof K.Improved Simulation of Thin-Shell Metal Forming Using LS-DYNA3D on Parallel Computers[J].Journal of Materials Processing Technology,1995(50):144-157.
[4]莫建华.金属板材数字化渐进成形技术及其加工轨迹生成的研究[D].武汉:华中科技大学,2003.
[5]马琳伟.金属板材单点渐进成形数值模拟和机理研究[D].武汉:华中科技大学,2008.
[6]程兆辉.高压水射流渐进成形技术研究[D].长春:吉林大学,2008.
[7]彭守桃.金属板料渐进成形数值模拟及工艺研究[D].重庆:重庆大学,2010.
[8]安治国,庞鹏辉,陈科衡,等.有模单点渐进成形工艺参数对1060铝合金成形性能的影响[J].锻压技术,2017,42(11):94-98+171.
[9]周建宇,杨明顺,李言,等.金属板料单点渐进成形自适应螺旋线轨迹生成研究[J].机械科学与技术,2017,36(10):1562-1569.
[10]王华毕,桑文刚,魏目青.金属板料单点渐进成形性能的研究[J].机械设计与制造,2017(1):108-111.