组合微织构刀具切削钛合金仿真研究  

Simulation Study on Titanium Alloy Cutting with Combined Microtexture Tools

作　　者：陈兴媚 祁志旭 刘洋 王利 CHEN Xingmei;QI Zhixu;LIU Yang;WANG Li(Institute of Intelligent Manufacturing,Guangdong Technology College,Zhaoqing 526114,China)

机构地区：[1]广东理工学院智能制造学院,广东肇庆526114

出　　处：《机械工程师》2024年第2期11-14,共4页Mechanical Engineer

基　　金：广东理工学院“创新强校工程”科研项目(2021GK JZK007)。

摘　　要：为提升刀具切削钛合金过程中的切削性能,考虑微织构形貌之间的交互作用,设计了微坑-微槽组合微织构刀具,并利用DEFORM-3D有限元模拟软件模拟组合微织构刀具切削钛合金的过程。以微织构刀具的刀具前角、切削速度和背吃刀量为因素变量设计了三因素三水平的正交试验,分析各试验因素对切削过程中主切削力的影响。结果表明:在组合微织构刀具切削钛合金过程中背吃刀量对切削力的影响最大,刀具前角次之,切削速度对切削力的影响程度最小,其最优组合为刀具前角为10°,切削速度为60 m/min,背吃刀量为0.1 mm;同时,组合微织构刀具在切削钛合金过程中,背吃刀量越小,切屑的卷曲程度越好;在不同背吃刀量的条件下,刀具前角对切屑形态的影响较为明显。In order to improve the cutting performance of the tool in the process of cutting titanium alloy,the micro crater-micro groove combined micro-texture tool is designed considering the interaction between micro-texture morphology.The process of cutting titanium alloy with combined micro-texture tools is simulated by DEFORM-3D finite element software.The orthogonal test of three factors and levels is designed with the factor variables of tool rake angle,cutting speed and back cut of micro texture tools.And the influence of each experimental factor on the main cutting force in the cutting process is analyzed.The results show that the depth of cut has the greatest influence on the cutting force,the rake angle of the tool takes the second place,and the cutting speed has the least influence on the cutting force in the process of cutting titanium alloy with combined micro-texture tools.The optimal combination is that the rake angle of the tool is 10°,the cutting speed is 60 m/min,and the cutting depth is 0.1 mm.At the same time,in the process of cutting titanium alloy with combined micro texture tools,the smaller the back cut,the better the chip curl.Under the condition of different cutting depth,the influence of tool rake angle on chip shape is more obvious.

关 键 词：组合微织构 正交试验 切削力 切屑 

分 类 号：TG506.9[金属学及工艺—金属切削加工及机床]