INVESTIGATION ON HARDENED STEEL MILLING WITH MICRO-END MILL  

小直径平底铣刀铣削淬硬钢实验研究(英文)

作　　者：HUYing-ning WANGCheng-yong WUXue-qi QINZhe ZENGBao-ping 

机构地区：[1]FacultyofElectromechanicalEngineering,GuangdongUniversityofTechnology,Guangzhou,510090,P.R.China／／CollegeofMechanicalEngineering,GuangxiUniversity,Nanning,530004,P.R.China [2]FacultyofElectromechanicalEngineering,GuangdongUniversityofTechnology,Guangzhou,510090,P.R.China [3]CollegeofMechanicalEngineering,GuangxiUniversity,Nanning,530004,P.R.China

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2004年第4期291-297,共7页南京航空航天大学学报（英文版）

基　　金：广西省科技攻关计划(033005-10,0143016)资助项目;广东省重大专项基金(2003A1040307)资助项目;广州市重大专项基金(2003Z1-D9031)资助项目~~

摘　　要：Tool wear and breakage of the micro-milling tool is an important problem for high speed machining of hardened steel die and mould. Dry milling of S136 hardened steel is carried out using TiAlN coated carbide micro-end mill (2 mm).The effect of cutting speed, feed per tooth and radial depth of cut on cutting force is analyzed. Cutting parameters adapting to dry machining and strategy optimized for higher rate of material removal with lower cutting force are attained. Results of SEM observation show that the main failure patterns of micro-end mill are breakage of tool tip, wear and drop-off of surface coating, micro-chipping, and breakage of flank.Tool wear and breakage of the micro-milling tool is an important problem for high speed machining of hardened steel die and mould. Dry milling of S136 hardened steel is carried out using TiA1N coated carbide micro-end mill (Ф2 mm). The effect of cutting speed, feed per tooth and radial depth of cut on cutting force is analyzed. Cutting parameters adapting to dry machining and strategy optimized for higher rate of material removal with lower cutting force are attained. Results of SEM observation show that the main failure patterns of micro-end mill are breakage of tool tip, wear and drop-off of surface coating, micro-chipping, and breakage of flank.

关 键 词：micro-end mill hardened steel cutting force failure patterns 

分 类 号：TG506.1[金属学及工艺—金属切削加工及机床] TG506.7