新型多后刀面单刃单槽PCB微钻的设计  

Design of New Single Cutting Edge and Single Chip Flute of Micro-drill with Multi-flank Surface

作　　者：侯文峰[1,2] 

机构地区：[1]广州番禺职业技术学院 [2]广州番禺职业技术学院精密装备与现代检测技术研究所

出　　处：《工具技术》2017年第11期62-64,共3页Tool Engineering

基　　金：广东省自然科学基金(2016A030313405);广东省高等学校优秀青年教师培养计划项目(YQ2015205);广州市属高校科技计划项目(1201421033);广州市番禺区珠江科技新星专项资助项目(2013-专15-6.03)

摘　　要：阐述了一种新型微钻结构,具有单一切削刃、单一排屑槽、单一横刃和多个后刀面。对钻头特点进行分析,阐述了其加工思路和加工方法。该新型微钻整体刚性好,不易折断,可提高孔位精度和改善孔壁粗糙度,进而提高PCB的加工良品率。A new micro-drill structure is proposed,which has a single cutting edge,a single chip flute,a single chisel edge and multi-flank surfaces. Its characteristics were analyzed, and its processing ideas and processing methods were expounded. The overall is high rigidity,and isnot easy to break,which can improve the drilling-hole accuracy andthe drillinghole wall roughness,thereby improving the processing yield of PCB.

关 键 词：微钻 单刃 单槽 多后刀面 

分 类 号：TG713.1[金属学及工艺—刀具与模具] TH161[机械工程—机械制造及自动化]