CrAlN纳米梯度涂层的切削性能研究  

The Cutting Performance of CrAlN Nano-gradient Coating

作　　者：宋佳伟 王欣 李哲辉 范其香[1,3] 罗忠红 武文轩 SONG Jia-wei;WANG Xin;LI Zhe-hui;FAN Qi-xiang;LUO Zhong-hong;WU Wen-xuan(Tianjin University of Technology and Education,School of Mechanical Engineering,Tianjin 300222,China;Tianjin University of Technology and Education,Engineering Trainning Center,Tianjin 300222,China;Tianjin Baiyutengfei Technology Co.,Ltd.,Tianjin 300222,China)

机构地区：[1]天津职业技术师范大学机械工程学院,天津300222 [2]天津职业技术师范大学工程实训中心,天津300222 [3]天津柏玉腾飞科技有限公司,天津300222

出　　处：《装备制造技术》2019年第12期110-111,123,共3页Equipment Manufacturing Technology

基　　金：天津市大学生创新训练计划项目(201910066046);天津职业技术师范大学校级科研项目(KJ 1908);天津职业技术师范大学研究生创新基金(YC20-5);天津市科技军民融合重大专项项目(18ZXJMTG00050)。

摘　　要：针对45#钢进行切削,以YT15车刀为对比,研究了CrAlN纳米梯度涂层的切削性能,利用Fluke Ti X640型热成像仪测试了切削过程中切削区的切削温度,采用超景深三维显微镜观察了刀具的磨痕形貌。结果表明:CrAlN纳米梯度涂层刀具具有更低的切削温度,使用寿命比YT15车刀使用寿命约延长了1.5倍。刀具磨损失效以磨料磨损为主。The cutting properties of CrAlN nano-gradient coating was tested by dry cutting 45#steel,with YT15 tool as a reference.A thermography(Fluke TiX640)was used to measure the average cutting temperature in the cutting zone.The wear morphologies was characterized by a microscope.Results shows that the CrAlN nano-gradient coating possesses lower cutting temperature,compared to the YT15 cutting tool.The tool life of the CrAlN coating is 1.5 times longer than the YT15 tool life.Abrasive mechanism is the main reason for the tool wear.

关 键 词：CrAlN纳米梯度涂层 切削寿命 磨损形貌 切削温度 

分 类 号：TG174.444[金属学及工艺—金属表面处理]