TP1000涂层刀具车削淬硬钢的磨损与破损形态  

Wear and Breakage Characteristics of TP1000 Coated Tool in Turning Hardened Steels

作　　者：侯志刚[1,2] 赵军[1] 郑光明[1] 徐立强[2] 郭忠[2] 

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(山东大学) [2]烟台大学

出　　处：《工具技术》2010年第9期21-23,共3页Tool Engineering

基　　金：国家973计划项目(2009CB724402);中国博士后科学基金面上项目(20080431174);山东省博士后创新专项资金项目(200702026)

摘　　要：用TP1000涂层刀具对淬硬45钢和淬硬T10A钢进行了正交车削实验,并进行了相应的扫描电镜(SEM)和X射线衍射(XRD)分析。结果表明,切削淬硬45钢时,涂层刀具发生了磨损和破损,磨损机理主要是磨料磨损和氧化磨损,破损机理主要是涂层剥落。切削淬硬T10A钢时,涂层刀具主要发生破损,破损机理主要是涂层开裂、剥落和崩刃。Orthogonal cutting experiments of turning hardened 45 and T10A steels were performed by using TP1000 coated tools.SEM and XRD analysis were conducted on cutting tools.The results show that both wear and breakage occur when turning hardened 45 steel.The major wear mechanism are abrasion and oxidation,and the major breakage mechanism is surface spall.When turning hardened T10A steel,the main disability is breakage,and the major breakage mechanism include surface crack,spall and tipping.

关 键 词：涂层刀具 车削 淬硬钢 磨损 破损 

分 类 号：TG712[金属学及工艺—刀具与模具]