This paper analyses the geometrical character of curve of edge of form milling cutter,and infers the mathematical equations of curve, The center coordinates of conical button-shaped are evaluated.

• 本文分析了成型铣刀刀刃曲线的几何性质，推导出它的数学方程，求取铣刀上圆盘刀片中心坐标，为成型铣刀的计算机辅助设计奠定了理论基础。