不同刃口形貌的S钻尖麻花钻钻削性能研究  

Study on Drilling Performance of S Drill-point Twist Drill with Different Cutting Edge Shapes

作　　者：曾腾辉 ZENG Tenghui(Xiamen Golden Egret Special Alloy Co.,Ltd.,Xiamen 361100,China)

机构地区：[1]厦门金鹭特种合金有限公司,福建厦门361100

出　　处：《机械工程师》2020年第10期31-34,共4页Mechanical Engineer

基　　金：国家科技重大专项“航空钛合金结构件高性能加工技术成套工艺研究”(2018ZX04042001)。

摘　　要：研究了相同规格的S钻尖麻花钻在相同切削参数的条件下,采用两种不同刃口形貌钻削Q345材料时的切削性能、断屑情况及耐用度。实际试验结果表明,在正常的刃口几何参数条件下,在钻削Q345材料时,负倒棱刃口形貌较圆弧形刃口形貌在切削性能稳定性、耐用度、断屑能力等方面都具有更优异表现。This paper studies the cutting performance,chip breakage and durability of S drill-point when drilling Q345 with two different cutting edge morphologies under the same cutting parameters.The actual test results show that,under the condition of normal cutting edge geometry parameters,the shape of chamfered edge is better than rounded edge in cutting stability,durability and chip breakage while drilling Q345.

关 键 词：S钻尖 麻花钻 负倒棱刃口 圆弧刃口 

分 类 号：TG501[金属学及工艺—金属切削加工及机床]