新型T iCN涂层钻头的磨损机理  

The Wear Mechanism of New Type of Drill Coated with TiCN

作　　者：杨贵军[1] 杨跃军[1] 陈明[1] 孙方宏[1] 胡祖光 励政伟 祝新发 许辉 

机构地区：[1]上海交通大学机械与动力工程学院,上海200030 [2]上海上工国际精密工具有限公司,上海200093

出　　处：《上海交通大学学报》2005年第11期1741-1745,共5页Journal of Shanghai Jiaotong University

基　　金：国家科技型中小企业创新基金项目(04C26213101122);上海市引进技术的吸收与创新计划项目;航空基础科学基金项目(04H57001)

摘　　要：以M 35钴高速钢为基体材料开发出新型T iN、T iCN和T iA lN涂层钻头,通过切削奥氏体不锈钢1C r18N i9T i对比试验发现,T iCN涂层钻头的使用寿命最长、磨损形态最好.为了进一步揭示T iCN涂层的磨损机理,以该新型钻头在加工过程中刀具表面成分变化动态跟踪的方式,分析T iCN涂层钻头在切削过程中成分变化规律和后刀面的磨损过程,归纳出了T iCN涂层钻头的磨损机理并解释了该涂层在加工不锈钢时所表现出优良切削性能的原因.研究结果对奥氏体不锈钢加工钻头的开发、钻削加工参数的优化具有指导意义.Three new types of drills were developed based on M35 high speed steel and the coating materials are TiN,TiCN and TiAlN respectively. Among those drills, the TiCN coated drill shows the best performance in machining 1Cr18Ni9Ti austenitic stainless steel. The tribological properties and wear mechanism of drill coated with TiCN were ulteriorly investigated through life-testing and dynamic element-tracing experiments. The results of the experiments illuminate the drill＇s wear mechanism. The work of the paper can also be beneficial to drill development and optimization of parameters when it comes to machining stainless steel.

关 键 词：TiCN涂层钻头 磨损机理 奥氏体不锈钢 钻削 

分 类 号：TG113[金属学及工艺—物理冶金]