自由切削麻花钻刃形设计的新思路  

A NEW METHOD OF DESIGNING THE CUTTING EDGE OF A FREE-CUTTING DRILL

作　　者：代真虎[1] 陈永洁[1] 师汉民[1] 

机构地区：[1]华中科技大学,武汉430074

出　　处：《硬质合金》2002年第1期32-35,共4页Cemented Carbides

摘　　要：介绍了刀具自由切削的原理 ,提出了一种设计麻花钻刃形的新思路——通过输入刃形 ,计算出该刃形切削的非自由度系数 ,选择最小的非自由度系数所对应的刃形 ,并介绍及推导了有关的计算公式。The theory of free cutting is introduced. A new method of designing the cutting dege of a drill is presented, that is, we can work out the non-free degree coefficient of a cutting edge and select a cutting edge whose corresponding coefficient is minimum with an input of a cutting edge parameter. And some involved formulae are introduced and deduced.

关 键 词：自由切削 最小能量原理 Stabler法则 非自由度系数 单元刀刃 麻花钻 刃形设计 

分 类 号：TG713[金属学及工艺—刀具与模具]