不同冷却方式对钛合金切削过程的影响研究  

An Investigation of Effects of Cooling Modes on Cutting Process of Titanium Alloy

作　　者：陶亮 陈海虹 陈超 刘爱军 TAO Liang1,CHEN Hai-hong1,CHEN Chao2,LIU Ai-jun1(1.Schoo1 of Mechanical Engineering, Guizhou Institute of Technology, Guizhou Guiyang 550003, China; 2.Xiangyang Automobile Bearing Co ., Ltd., Tool and Die Workshop, Hubei Xiangyang 441022, Chin)

机构地区：[1]贵州理工学院机械工程学院,贵州贵阳550003 [2]襄阳汽车轴承股份有限公司工模具分厂,湖北襄阳441022

出　　处：《机械设计与制造》2018年第8期136-138,共3页Machinery Design & Manufacture

基　　金：贵州省科技合作项目(LH字[2015]7087)

摘　　要：为了揭示不同冷却方式对钛合金切削过程的影响规律,以硬质合金刀具切削钛合金Ti6Al4V为研究对象,采用Johnson-Cook材料本构模型,运用金属切削仿真软件Advant Edge进行了高压冷却、浸入式冷却以及局部喷射冷却的切削仿真分析。仿真结果表明:三种冷却方式中,刀具高温区主要分布在切削刃附近区域;浸入式冷却中切削刃温度和应力最低、切削力最小;浸入式冷却切削性能最好,其次为高压冷却,局部喷射冷却最差。研究结果可为钛合金切削加工时选择有效的冷却方式提供理论指导。A cutting simulation was applied to reveal the variation of cooling mode,cutting results and the relationship among them. The cutting of Ti6 Al4 V steel with carbide tools was taken as research subject. A cutting simulation with Johnson-Cook constitutive model was calculated under the cutting conditions of different cooling mode by using Advant Edge software. The simulation results indicate that the highest temperature is generated in the certain distance from the cutting edge. The immersed cooling mode gives the lowest temperature of cutting edge,cutting force and stress in the three cooling modes. The cutting characteristic of immersed coolant is the best,closely followed by model pressureand focused coolant.

关 键 词：冷却方式 钛合金 切削力 切削温度 切削刃应力 

分 类 号：TH16[机械工程—机械制造及自动化] TG501.1[金属学及工艺—金属切削加工及机床]