钛合金螺旋铣孔过程中硬质合金球头铣刀磨损机理研究  

Study on Wear Mechanism of Carbide Ball End Mills in Helical Milling of Titanium Alloy

作　　者：王海艳 陆尧 田淦 Wang Haiyan;Lu Yao;Tian Gan

机构地区：[1]东北大学秦皇岛分校控制工程学院

出　　处：《工具技术》2024年第10期94-99,共6页Tool Engineering

基　　金：国家自然科学基金(51705070);河北省自然科学基金(E2020501014)。

摘　　要：为了深入理解钛合金螺旋铣孔过程中球头铣刀的磨损机理,使用TiAlN涂层硬质合金球头铣刀在干切削条件下对钛合金进行螺旋铣孔加工,分析铣孔过程中材料的去除过程;基于钛合金螺旋铣孔试验结果,利用工具显微镜、电子显微镜和能谱仪检测刀具磨损情况,明确刀具磨损机理,进而探讨轴向切削力、径向切削力、切削温度和刀具磨损之间的关系。结果表明:黏结磨损贯穿刀具磨损全过程,存在扩散磨损和氧化磨损;刀具破损时出现崩刃、涂层剥落等现象;切削力与刀具磨损程度呈正相关关系,磨损对轴向切削力影响较大,对径向切削力影响较小。In order to deeply understand the wear mechanism of the ball end mill in helical milling process,the TiAlN coated carbide ball end mill is used for the machining of titanium alloy under dry cutting conditions.Firstly,the material removal during the helical milling process is discussed.Secondly,based on the different zone,tool microscope,electron microscope and energy spectrum are used to detect the tool wear,so as to clarify the tool wear mechanism,and then explore the relationship between axial cutting force,radial cutting force,cutting temperature and tool wear.The results show that adhesive wear throughout the tool wear process,diffusive wear and oxidative wear exist.Chipping and coating flaking occur when the tool is broken.The cutting force is positively correlated with the degree of tool wear,with a greater effect on the axial cutting force and a smaller effect on the radial cutting force.

关 键 词：球头铣刀 螺旋铣孔 钛合金 刀具磨损 切削力 

分 类 号：TG713[金属学及工艺—刀具与模具] TH162[机械工程—机械制造及自动化]