双相高强钢板的激光弯曲成形数值模拟
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摘要
为了探究汽车车身用DP980双相高强钢板的激光弯曲成形特性以及激光参数对弯曲角的影响,利用ABAQUS有限元分析软件对DP980双相高强钢板的激光弯曲成形过程进行了数值模拟,研究了激光扫描过程中板材内部的温度场分布,揭示了DP980钢板激光弯曲成形的机理;并对激光功率、扫描速度、线能量等激光参数对板材弯曲角的影响进行了分析。结果表明,DP980双相高强度钢板的弯曲角随着激光功率的增加而增加,随着扫描速度的增加而减小,在一定的线能量范围内,弯曲角大小与线能量呈线性增长关系,并推导出了用于预测钢板弯曲角的数学模型。
To explore the laser bending characteristics and the effect of laser parameters on bending angle of DP980 dual phase steel plate used for automotive body,the finite element analysis software ABAQUS was employed for the numerical simulation of the laser bending process of DP980 dual phase high strength steel plate. The temperature field distribution of the plate during laser scanning was studied,and the laser bending mechanism of DP980 steel plate was revealed. Furthermore,the effects of the laser parameters such as laser power,laser scanning velocity and line energy on bending angle of the plate were analyzed. The results show that the bending angle of DP980 dual phase high strength steel plate increases with the increase of laser power and decreases with the increase of laser scanning velocity. Within a certain range of line energy,the bending angle has a linear positive correlation with the line energy. The mathematical model employed to predict the bending angle of steel plate using line energy was also derived.
To explore the laser bending characteristics and the effect of laser parameters on bending angle of DP980 dual phase steel plate used for automotive body,the finite element analysis software ABAQUS was employed for the numerical simulation of the laser bending process of DP980 dual phase high strength steel plate. The temperature field distribution of the plate during laser scanning was studied,and the laser bending mechanism of DP980 steel plate was revealed. Furthermore,the effects of the laser parameters such as laser power,laser scanning velocity and line energy on bending angle of the plate were analyzed. The results show that the bending angle of DP980 dual phase high strength steel plate increases with the increase of laser power and decreases with the increase of laser scanning velocity. Within a certain range of line energy,the bending angle has a linear positive correlation with the line energy. The mathematical model employed to predict the bending angle of steel plate using line energy was also derived.
引文
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[13]徐琅,李卫东,王秀凤,等.预载荷下板料激光弯曲成形的工艺参数分析[J].北京航空航天大学学报,2017,43(6):1149-1154.XU Lang,LI Weidong,WANG Xiufeng,et al.Analysis on process parameters of laser bending of preload metal plate[J].Journal of Beijing University of Aeronautics and Astronautics,2017,43(6):1149-1154.
[14]李金华,苏智超,姚芳萍,等.激光弯曲工艺参数对铝合金板材弯曲角度的影响[J].热加工工艺,2016,45(21):114-120.LI Jinhua,SU Zhichao,YAO Fangping,et al.Influence of laser bending process parameters on bending angle of aluminum alloy sheet[J].Hot Working Technology,2016,45(21):114-120.
[15]刁法玺,张勇,倪雷,等.1000 MPa级汽车用双相超高强钢低温脆性研究[J].塑性工程学报,2017,24(4):161-166.DIAO Faxi,ZHANG Yong,NI Lei,et al.Study on low temperature brittleness of 1000 MPa grade dual phase ultra high strength steel for automobile use[J].Journal of Plasticity Engineering,2017,24(4):161-166.
[16]田文扬,刘奋,韦春华,等.DP980高强钢动态拉伸力学行为[J].材料工程,2017,45(3):47-53.TIAN Wenyang,LIU Fen,WEI Chunhua,et al.Mechanical behavior of DP980 high strength steel under dynamic tensile tests[J].Journal of Materials Engineering,2017,45(3):47-53.
[17]刘大海,孟维金,蒙骏鹏.DP780高强钢板材高应变率变形行为及本构模型[J].塑性工程学报,2018,25(1):161-166,174.LIU Dahai,MENG Weijin,MENG Junpeng.Deformation behavior and constitutive model of DP780 high strength steel at high strain rates[J].Journal of Plasticity Engineering,2018,25(1):161-166,174.
[18]宋燕利,余成,戴定国,等.基于BP和GA的激光焊接热源模型参数优化[J].塑性工程学报,2017,24(1):218-222.SONG Yanli,YU Cheng,DAI Dingguo,et al.Parameter optimization of heat source model for laser welding based on BP neural network and genetic algorithm[J].Journal of Plasticity Engineering,2017,24(1):218-222.
[19]MAGEE J,WATKINS K G,STEEN W M,et al.Edge effects in laser forming[J].Laser Assisted Net Shape Engineering,1997,2:399-408.
[20]KIM J,NA S J.Feedback control for 2D free curve laser forming[J].Optics&Laser Technology,2005,37(2):139-146.
[2]王秀凤,TAKACS J,KRALLICS G.薄板激光弯曲机理的研究[J].锻压技术,2001,26(4):27-33.WANG Xiufeng,TAKACS J,KRALLICS G.Research on mechanism of laser bending for sheet metal[J].Forging&Stamping Technology,2001,26(4):27-33.
[3]CHAKRABORTY S S,MORE H,NATH A K.Laser forming of a bowl shaped surface with a stationary laser beam[J].Optics and Lasers in Engineering,2016,77:126-136.
[4]AKIYAMA T,KITAMURA T,KIDO M.Effect of heat input and initial curvature radius on deformation of thin plate heated on concave or convex surface by laser beam[J].Journal of the Japan Institute of Metals,2015,79(10):523-527.
[5]EIDEH A,DIXIT U S,ECHEMPATI R.A simple analytical model of laser bending process[C]∥5th International&26th All India Manufacturing Technology,Design and Research Conference,Guwahati,2014:1-6.
[6]裴继斌,张立文,吕波,等.中厚船舶钢板激光弯曲成形几何效应的数值模拟[J].塑性工程学报,2005,12(1):34-42.PEI Jibin,ZHANG Liwen,LBo,et al.Numerical simulation of geometrical effects in laser bending process of moderately thick shipbuilding steel plate[J].Journal of Plasticity Engineering,2005,12(1):34-42.
[7]CHAKRABORTY S S,MAJI K,RACHERLA V,et al.Investigation on laser forming of stainless steel sheets under coupling mechanism[J].Optics&Laser Technology,2015,71:29-44.
[8]CHAKRABORTY S S,MORE H,RACHERLA V,et al.Modification of bent angle of mechanically formed stainless steel sheets by laser forming[J].Journal of Materials Processing Technology,2015,222:128-141.
[9]SHI Y J,LU X,YI P,et al.Effect of heating paths on strain distribution of plate in laser forming[J].The International Journal of Advanced Manufacturing Technology,2013,66(1-4):515-521.
[10]SHI Y J,CHEN J,QI Y G,et al.Processing strategy for laser forming of complicated singly curved shapes[J].Materials Science and Technology,2009,25(7):925-930.
[11]裴继斌,张立文,王存山,等.厚钢板激光多次扫描弯曲成形的研究[J].中国机械工程,2007,18(12):1434-1437.PEI Jibin,ZHANG Liwen,WANG Cunshan,et al.Study on multiple-irradiation laser bending process of thick steel plate[J].China Mechanical Engineering,2007,18(12):1434-1437.
[12]PEI J B,ZHANG L W,ZHANG Q Z,et al.Simulation on influence of scanning passes during laser bending of steel plate[J].Chinese Journal of Lasers,2007,34(12):1721-1724.
[13]徐琅,李卫东,王秀凤,等.预载荷下板料激光弯曲成形的工艺参数分析[J].北京航空航天大学学报,2017,43(6):1149-1154.XU Lang,LI Weidong,WANG Xiufeng,et al.Analysis on process parameters of laser bending of preload metal plate[J].Journal of Beijing University of Aeronautics and Astronautics,2017,43(6):1149-1154.
[14]李金华,苏智超,姚芳萍,等.激光弯曲工艺参数对铝合金板材弯曲角度的影响[J].热加工工艺,2016,45(21):114-120.LI Jinhua,SU Zhichao,YAO Fangping,et al.Influence of laser bending process parameters on bending angle of aluminum alloy sheet[J].Hot Working Technology,2016,45(21):114-120.
[15]刁法玺,张勇,倪雷,等.1000 MPa级汽车用双相超高强钢低温脆性研究[J].塑性工程学报,2017,24(4):161-166.DIAO Faxi,ZHANG Yong,NI Lei,et al.Study on low temperature brittleness of 1000 MPa grade dual phase ultra high strength steel for automobile use[J].Journal of Plasticity Engineering,2017,24(4):161-166.
[16]田文扬,刘奋,韦春华,等.DP980高强钢动态拉伸力学行为[J].材料工程,2017,45(3):47-53.TIAN Wenyang,LIU Fen,WEI Chunhua,et al.Mechanical behavior of DP980 high strength steel under dynamic tensile tests[J].Journal of Materials Engineering,2017,45(3):47-53.
[17]刘大海,孟维金,蒙骏鹏.DP780高强钢板材高应变率变形行为及本构模型[J].塑性工程学报,2018,25(1):161-166,174.LIU Dahai,MENG Weijin,MENG Junpeng.Deformation behavior and constitutive model of DP780 high strength steel at high strain rates[J].Journal of Plasticity Engineering,2018,25(1):161-166,174.
[18]宋燕利,余成,戴定国,等.基于BP和GA的激光焊接热源模型参数优化[J].塑性工程学报,2017,24(1):218-222.SONG Yanli,YU Cheng,DAI Dingguo,et al.Parameter optimization of heat source model for laser welding based on BP neural network and genetic algorithm[J].Journal of Plasticity Engineering,2017,24(1):218-222.
[19]MAGEE J,WATKINS K G,STEEN W M,et al.Edge effects in laser forming[J].Laser Assisted Net Shape Engineering,1997,2:399-408.
[20]KIM J,NA S J.Feedback control for 2D free curve laser forming[J].Optics&Laser Technology,2005,37(2):139-146.