大型螺纹旋风硬铣削PCBN刀具的试验研究及设计  

Experimental study and design for PCBN tools used in large-scale screw thread hard whirling

作　　者：朱红雨[1] 倪寿勇[2] 李迎[2] 

机构地区：[1]南京化工职业技术学院,江苏南京210048 [2]南京理工大学机械工程学院,江苏南京210094

出　　处：《制造技术与机床》2014年第6期93-95,共3页Manufacturing Technology & Machine Tool

基　　金：江苏省高校科研成果产业化推进项目(JHB2012-66)

摘　　要：利用工具显微镜等工具研究了硬态旋风铣削加工中PCBN刀具的主要失效形式崩刃和断裂,崩刃主要出现在刀尖圆弧中心线的位置上,PCBN刀具后刀面磨损几乎为零。统计了在加工参数和加工时间相同时,可修复刀具与不可修复刀具之比。提出了降低刀具成本的方法是采用可转位旋风硬铣PCBN刀片设计。This article studied main failure mode of PCBN tools,that is tipping and blade fracture,used in hard whirling by tool microscope. Normally,tipping would occur in the central line of arc of tool nose,meanwhile the rear edge of PCBN tools would get less abrasion. Then,this article summarized repairable- to- unrepairable ratio of PCBN tools with same cutting parameters and cutting time and came up with a solution to cut the cost,which is using the design of hard whirling with indexable PCBN tools.

关 键 词：大型螺纹 旋风硬铣削 PCBN刀具 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]