钻削齿轮台阶端面的硬质合金麻花钻设计优化  

Optimization on Cutting Gear Step with Carbide Twist Drill

作　　者：王茹燕 张波 Wang Ruyan;Zhang Bo

机构地区：[1]上海工具厂有限公司数控技术分中心,上海市200093 [2]上海工具厂有限公司

出　　处：《工具技术》2020年第6期49-51,共3页Tool Engineering

摘　　要：在加工齿轮台阶面上的减轻孔时,普通整体硬质合金钻头在加工过程中钻尖外缘处易破损。通过分析实际加工条件和被加工件特征后,改进了钻头的钻尖型式,解决了钻尖外缘破损的问题,提高了钻头寿命。When machining the relief hole on the gear step surface of the solid carbide drill,the outer edge of the drill tip is easy to be damaged during the machining process.After analyzing the actual processing conditions and the characteristics of the machined workpiece,the drill bit form is improved.The improved drill bit solves the problem of damage to the outer edge of the drill bit and improves the life of the drill bit.

关 键 词：硬质合金麻花钻 齿轮 台阶 钻削 

分 类 号：TG135.5[一般工业技术—材料科学与工程] TH162[金属学及工艺—合金]