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我厂生产的WD1200挖掘机上,有一部分齿轮采用齿形角为25°的渐开线齿轮。其中模数M=8～16的用滚刀加工,M22～26的用成型模数铣刀盘式指形铣刀加工。滚刀设计原理与齿形角为20°的齿轮滚刀
WD1200 excavator I produced on the factory, some of the gear with involute gear tooth angle of 25 °. One module M = 8 ~ 16 with a hob, M22 ~ 26 with a mold cutter milling cutter finger type. Hob design principle and gear angle of 20 ° gear hob