文中借助于形象思维把齿轮的啮合几何化，提出了一种研究按滚切法工作的切齿刀具的方法，从节曲面到齿曲面的射影变换。
In this paper we propose a method of projective transformation from pitch surface to cutter surface for studying face mill cutters.
在应用无差动法滚切斜齿圆柱齿轮的基础上，通过理论推导和实验验证，得出进一步减少斜齿轮齿向误差的可行的挂轮选配新方法。
Through theoretical derivation and experimental verification, a new method is obtained for further reducing tooth curve error of oblique gear and for choosing feed gear wheel.
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