The tooth curve of a plunge shaving cutter for an external gear is a recess transcendental curve, so it is difficult to grind it.

用于外齿轮加工的径向剃齿刀，其齿向曲线为内凹超越曲线，这给剃齿刀的刃磨带来了困难。

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The common gear tooth profile curve launches after neighborhood higher order step taylor's series, can discover the tooth face meshing point neighborhood gap is 2 step infinitely greats.

一般齿轮齿形曲线在一点邻域的高阶阶戴劳级数展开后，会发现齿面啮合点邻域间隙为2阶无穷小。

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In this paper, a. new algorithm substituting an optimized round arc for the outline of tooth curve of an epicyclic gear tooth with long amplitude is discussed.

本文提出了用最优化圆弧代替长幅外摆线轮齿廓曲线的一种新型算法。

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