硬质合金麻花钻涂层性能试验研究  

Experiment Research on Coating Performance of Cemented Carbide Twist Drills

作　　者：许辉 张少文[2] 李亮[2] 赵威[2] 蒋克仁 

机构地区：[1]上海工具厂有限公司,上海200093 [2]南京航空航天大学,南京210016

出　　处：《机械设计与制造》2012年第10期144-146,共3页Machinery Design & Manufacture

基　　金："高档数控机床与基础制造装备"科技重大专项资助(NO:2010ZX04012-042)

摘　　要：涂层能够有效改善刀具的切削性能,在理论分析与试验研究基础上,对比分析了涂层麻花钻与未涂层麻花钻切削过程中的轴向力大小,同时对比分析了七种涂层材料对硬质合金麻花钻切削性能的改善程度。试验结果表明:相对于未涂层麻花钻而言,涂层麻花钻切削过程中的轴向力明显减小,刀具耐用度显著提高;不同涂层材料对刀具切削性能的改善程度不同,在考察的七种涂层材料中TiCN、TiAlCN和TiAlN涂层对麻花钻耐用度改善效果最为明显,而AlCrN和CrN+TiN涂层相对较差。Cutting performance of tools can be efficiently improved by coating.Based on theory analy- sis and experiment research, the axial cutting force of coated tools and uncoated tools were compared.In ad- dition,the improvements of seven different kinds of coating cemented carbide twist drills＇cutting perfor- mance were also analyzed.The results show that the axial cutting force of coated twist drills have been obvi- ously reduced compared with uncoated one ,therefore ,tool life can be greatly improved by coating. Different coating materials have different improvements to the performance of tools ,and among seven researched coating materials,TiCN,TiA1CN and TiA1N coating materials can improve the twist drills＇performances most obviously.However,A1CrN and CrN＋TiN coating materials are much worse than the materials above.

关 键 词：麻花钻 涂层 刀具磨损 切削性能 

分 类 号：TH16[机械工程—机械制造及自动化] TG713.1[金属学及工艺—刀具与模具]