钛合金Ti6Al4V高速铣削三维有限元仿真分析  

FEM Simulation and Analysis for Three-dimensional Milling Process of Titanium Alloy Ti6Al4V

作　　者：陈国三 黄晓华[1] 陈龙高[1] 董松江 冯畅[1] 王立[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《组合机床与自动化加工技术》2016年第4期43-46,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技重大专项(2010ZX04014-051)

摘　　要：文章基于有限元分析软件ABAQUS,针对钛合金Ti6Al4V的高速铣削过程,建立了更加真实的三维有限元模型,模拟出切屑的形成过程,得到了铣削过程的应力分布云图、铣削温度分布云图以及铣削力曲线,并通过铣削力实验验证了所建立有限元模型的正确性。最后基于该有限元模型研究了不同切削参数下铣削力的变化规律,结果表明:铣削力随着轴向切深ap,径向切深ae,每齿进给量fz的增大而增大,但各参数对进给力Fx影响最大,径向力Fy次之,对轴向力Fz影响最小。而随着切削速度vc的增大铣削力变化很小。其中对铣削力影响主次顺序是:轴向切深ap>每齿进给量fz、径向切深ae>切削速度vc。In this paper,a more real 3D finite element model for high speed milling Ti6Al4 V alloy workpiece which was established by finite element software ABAQUS,which simulated the process of chip formation,the stress distribution,milling temperature distribution and milling force curve. Besides,a milling experiment were carried out which confirms the correctness of the finite element model. Finally,It was focused to study the effects of different cutting parameters on the milling force based on the finite element model. Results of the study showthat the milling force increase with the increase of axial depth,radial depth and feed per tooth. But the greatest impact of parameters on milling force is feed force Fx,then radial force Fy,with minimal impact is axial force Fz,but with the increasing of cutting speed,the milling force changes very little. The order of the influence of milling force is axial depth feed per tooth and radial depth and the cutting speed.

关 键 词：钛合金 高速铣削 三维有限元 铣削力 仿真 

分 类 号：TG506[金属学及工艺—金属切削加工及机床] TH16[机械工程—机械制造及自动化]