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论述了加工渐开线斜齿圆柱齿轮指形铣刀画法几何模型的建立方法；推导出指形铣刀轴剖面廓形曲线上点的坐标方程；进行通用Autolisp程序设计，并举例绘制轴剖面廓形。
The method of establishing geometrical model of drawing geometrical model of involute helical gear finger milling cutter was expounded. The coordinate equation of point on profile curve of finger milling cutter was deduced. The general Autolisp program was designed, Contour.