单片精铣硬质合金刀片的磨削工艺研究  

Research on Grinding Process of Single-chip Carbide Finishing Milling Insert

作　　者：储永代 李敏 冯文 刘天 Chu Yongdai;Li Min;Feng Wen;Liu Tian(Zhuzhou Cemented Carbide Cutting Tools Co.,Ltd.,Zhuzhou,Hunan 412007,China)

机构地区：[1]株洲钻石切削刀具股份有限公司,湖南省株洲市412007 [2]硬质合金国家重点实验室

出　　处：《工具技术》2022年第5期71-74,共4页Tool Engineering

基　　金：高档数控机床与基础制造装备科技重大专项(2018ZX04041001)。

摘　　要：单片精铣硬质合金刀片因其能实现高速、高精度加工而得到快速发展,但因本身精度要求高,在其生产制造环节存在一定问题。本文针对单片精铣硬质合金刀片的精度控制要求,综合分析磨削工艺,并设计了一种内孔磨削夹具进行磨削测试。磨削结果表明,定位面基准磨削方案更能保证中心孔的尺寸精度和位置度;基于内孔磨削夹具能实现高精度中心孔的控制,中心孔孔径过程能力指数C_(pk)值可达1.36,中心孔位置度过程能力指数C_(pk)值可达1.34,可进行批量生产。Single-chip finishing milling carbide insert has been developed rapidly because of its high-speed and high-precision machining.However,there are still some problems in the production of this kind of insert due to its high precision requirements.In this paper,the grinding process of this insert is comprehensively analyzed,and a kind of inner hole grinding clamping tool is designed for grinding test.The results show that the grinding scheme of locating surface as datum face can better ensure the dimensional accuracy and position of the central hole.The control of high-precision central hole can be realized based on grinding clamping tool for inner hole.The process capability index shows that the grinding scheme chosen by this paper meets the requirements of mass production.The C_(pk) of central hole diameter can reach 1.36,and the C_(pk) of central hole position can reach 1.34.

关 键 词：单片精铣刀片 硬质合金 磨削加工 夹具 C_(pk) 

分 类 号：TG580.6[金属学及工艺—金属切削加工及机床] TG706