球头端铣刀刀刃曲线的光滑连接

Study on Smooth Connection of Edge Curve of Ball End Mill

本文导出了球面螺旋线方程，提出并证明了球面几何的一个新定理，可以方便地解决球头铣刀顶部斜对与螺旋刃的光滑连接问题。

In this poper,author comPUted the formula of b811 face helix line of ball end mill,and put forward new principle about geometry of ball end mill surface. This method can solve simplly thesmooth connection of ball end mill edge.