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.
结果表明，修缘齿轮比标准齿轮在减振、降温等方面有明显改善。
The results show that a modification profile gear is in good condition that a standard one in lowering vibration and temperature aspects.
把修缘角外插齿刀的设计归结为一个双目标的优化问题，建立了优化设计的数学模型。
This paper concludes the designing of the external tooth shaping cutter for tooth tip relief as a double-aimed optimization problem and proposes a mathematic model of optimum design.
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