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用标准切削角度(γ=5°、α_(?)=6°)的插齿刀插切齿轮,随着插齿刀用钝后重磨前面,插出的齿轮根圆直径是变化的。特别是插切变位系数较大的齿轮时,这种变化更为显著,应引起我们齿轮制造者的注意。如果插齿刀和被切齿轮在啮合角等于被切齿轮分度圆压力角(20°)下工作时,插出的齿轮根圆直径正好等于名义值;而插齿刀在其他截面下工作时,
The gear is inserted with a gear shaper with a standard cutting angle (γ = 5 °, α_ (?) = 6 °) and the diameter of the root diameter of the inserted gear changes as the shaper is blunt rearward refurbished. Especially when the gear with larger displacement coefficient is inserted, the change is more significant and should be noticed by our gear manufacturers. If the gear shaper and the gear to be cut in the gear equal to the angle equal to the cutting gear rounding angle (20 °) under work, the diameter of the root of the gear inserted out just equal to the nominal value; and gear shaper work in other cross-section ,