硬质合金刀具车削钛合金时切削力分形特征研究  

Study on Fractal Characterization of Cutting Force in Dry Turning Titanium Alloy with Carbide Tool

作　　者：郑光明[1] 赵军[2] 王晓琴[2,3] 

机构地区：[1]山东大学机械工程学院高效洁净机械制造教育部重点实验室 [2]山东大学 [3]济南大学

出　　处：《工具技术》2010年第1期23-25,共3页Tool Engineering

基　　金：国家重点基础研究发展计划资助项目(2009CB724402)

摘　　要：分别采用硬质合金涂层和非涂层刀具对钛合金Ti-6.5Al-3.5Mo-1.5Zr-0.3Si(TC11)进行了干车削试验,通过试验中所测实验数据计算了切削力的关联维数,对切削过程中切削力的分形特征进行了研究。结果表明:切削钛合金时,切削力分维数随着刀具磨损状态的改变呈现高—低—高的变化规律;表面粗糙度和切削力分维数随切削时间的延续具有相同的变化趋势。The carbide tool and the coated carbide tool are used for dry turning of Ti - 6.5Al - 3.5Mo - 1.5Zr - 0.3Si （TC11 ）. The correlation dimensions of cutting force are calculated and analyzed based on the experiment date and the fractal characteristics of the cutting force in the cutting process are studied. The results show that the fractal dimension of cutting force is a ＂high-low high＂ change process with the tool wear process, and the surface roughness has the same trend with the cutting time in the process of cutting titanium alloy.

关 键 词：TC11 切削力 关联维数 刀具磨损 表面粗糙度 

分 类 号：TG501.3[金属学及工艺—金属切削加工及机床] TG712