基于ABAQUS的TC4合金切削变形区有限元仿真
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摘要
在不同的切削速度和平面应力应变厚度下,对工件切削变形区的温度和切削力进行了研究。基于弹塑性有限元理论建立TC4合金的二维有限元模型,运用ABAQUS有限元分析软件对TC4合金进行了弹塑性仿真分析。通过分析工件切削变形区的温度变化云图和切削力变化曲线可知:切削速度的变化对工件切削变形区的温度影响较大,平面应力应变厚度影响较小,切削力随着平面应力应变厚度的增加而变大。
The effects of different cutting speeds and plane stress-strain thickness on the temperature and cutting force of the workpiece deformation zone is studied. Based on the elastoplastic finite element theory,the two-dimensional finite element model of TC4 alloy is established. With nonlinear finite element analysis software ABAQUS,the elastoplastic simulation of TC4 alloy is carried out. By analyzing the temperature cloud diagram and the cutting force curve of the workpiece deformation zone,it is found that the cutting speed has a greater influence on the temperature of the workpiece deformation zone while the plane stress strain thickness has a smaller influence on it. And the cutting force becomes larger as the thickness of the plane stress and strain increases.
The effects of different cutting speeds and plane stress-strain thickness on the temperature and cutting force of the workpiece deformation zone is studied. Based on the elastoplastic finite element theory,the two-dimensional finite element model of TC4 alloy is established. With nonlinear finite element analysis software ABAQUS,the elastoplastic simulation of TC4 alloy is carried out. By analyzing the temperature cloud diagram and the cutting force curve of the workpiece deformation zone,it is found that the cutting speed has a greater influence on the temperature of the workpiece deformation zone while the plane stress strain thickness has a smaller influence on it. And the cutting force becomes larger as the thickness of the plane stress and strain increases.
引文
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[4]于洋滨,郑清春,朱培浩,等.基于ABAQUS的表面微织构刀具切削钛合金仿真研究[J].工具技术,2017,51(9):39-42.
[5]叶玉刚,尹燕.TC4合金切削有限元模拟动态本构模型的建立[J].兵器材料科学与工程,2009,32(6):35-39.
[6]姜增辉,王琳琳,石莉,等.硬质合金刀具切削Ti6Al4V的磨损机理及特征[J].机械工程学报,2014,50(1):178-184.
[7]Johoson G R,Cook W H.Fracture character theistic of three metals subjected to various strains strain rates,temperatures and pressures[J].Engineering Fracture Mechanics,1985,21(3):31-48.
[8]Songwon S,Oakkey M,Hyunmo Y,et al.Constitutive equation for Ti6A14V at high temperatures measured using the SHPB technique[J].International Journal of Impact Engineering,2015,31(6):735-754.
[9]周现柳.金属切削过程有限元分析[D].武汉:湖北工业大学,2012.
[10]游红超.钛合金切削过程的研究[D].武汉:湖北工业大学,2013.
[11]陈为国,姚坤弟.金属切削变形过程的有限元仿真初探[J].航空制造技术,2010(15):82-85.
[12]B?ker M,R?sler J,Siemers C.A finite element model of high speed metal cutting with adiabatic shearing[J].Computers&Structures,2002,80(5-6):495-513.
[2]Chen G,Ren C,Yang X,et al.Evidence of thermoplastic instability about segmented chip formation process for Ti6Al4Valloy based on the finite-element method[J].ARCHIVEProceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science,2011,225(6):1407-1417.
[3]Sui S C,Feng P F.The influences of tool wear on Ti6Al4Vcutting temperature and burn defect[J].International Journal of Advanced Manufacturing Technology,2016,85(9-12):2831-2838.
[4]于洋滨,郑清春,朱培浩,等.基于ABAQUS的表面微织构刀具切削钛合金仿真研究[J].工具技术,2017,51(9):39-42.
[5]叶玉刚,尹燕.TC4合金切削有限元模拟动态本构模型的建立[J].兵器材料科学与工程,2009,32(6):35-39.
[6]姜增辉,王琳琳,石莉,等.硬质合金刀具切削Ti6Al4V的磨损机理及特征[J].机械工程学报,2014,50(1):178-184.
[7]Johoson G R,Cook W H.Fracture character theistic of three metals subjected to various strains strain rates,temperatures and pressures[J].Engineering Fracture Mechanics,1985,21(3):31-48.
[8]Songwon S,Oakkey M,Hyunmo Y,et al.Constitutive equation for Ti6A14V at high temperatures measured using the SHPB technique[J].International Journal of Impact Engineering,2015,31(6):735-754.
[9]周现柳.金属切削过程有限元分析[D].武汉:湖北工业大学,2012.
[10]游红超.钛合金切削过程的研究[D].武汉:湖北工业大学,2013.
[11]陈为国,姚坤弟.金属切削变形过程的有限元仿真初探[J].航空制造技术,2010(15):82-85.
[12]B?ker M,R?sler J,Siemers C.A finite element model of high speed metal cutting with adiabatic shearing[J].Computers&Structures,2002,80(5-6):495-513.