描述了外啮合修缘插齿刀和修缘齿轮的齿形，分析了按常规设计修缘插齿刀存在的问题。
This paper describes the tooth forms of an external toothing and chamfering gear shaping cutter and chamfering gear shaper cutters designed by old routine.
滚刀、插齿刀设计成较大的修缘角，有利于提高啮合质量。
Designing of external gear shaper cutter with large tip relief Angle can improve the meshing quality.
讨论了渐开线修缘插齿刀设计中的具体问题，给出了插齿刀计算框图，并编制了CAD软件。
The design of chamfered gear shaper cutters is studied, and the designing frame is presented. The CAD software for calculating and drawing of gear shaper cutters is developed.
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