浅孔钻的径向力平衡及关键参数设计  

Study on Balance of Radial Cutting Force and Key Parameters for Short Hole Drill with Indexable Inserts

作　　者：庞学慧[1] 张晓艳[2] 

机构地区：[1]中北大学机械工程与自动化学院,太原市030051 [2]太原科技大学

出　　处：《工具技术》2011年第3期56-58,共3页Tool Engineering

摘　　要：通过对WCMX型刀片可转位浅孔钻的受力分析,提出应以径向力平衡作为浅孔钻的设计原则;对内刀片的过轴心线值、刀片切削刃的余偏角及内外刀片轴向相对位置、端面相对于圆心位置等重要设计参数进行了分析和阐释,并给出了推荐值;推导出了内刀片偏转角β的计算公式。Based on the analysis of cutting force for short hole drill with WCMX indexable inserts,the balance of radial cutting force as the design principle is put forward.Important design parameters include the off-axis and protrude value of centre insert,the off-centre value of centre and peripheral inserts,working approach angles of both inserts.All these parameters are discussed thoroughly and the optimal value are recommended.The deflexion angle β of centre insert is considered the most important parameter,and its calculating formula is derived.

关 键 词：浅孔钻 设计原则 平衡 设计参数 

分 类 号：TG52[金属学及工艺—金属切削加工及机床]