正前角滚刀切削齿轮时可以减少切屑变形及其流经前刀面上的摩擦,从而可以减少切削力、降低切削温度、提高表面光洁度及加工生产率,刀具的耐用度也得到了改善。滚刀的齿形经过修正后,可以减小被切齿轮由于滚刀有了前角而产生的齿形误差,因此这种滚刀可用于 Cutting the gear at the front rake reduces the chip deformation and friction on the rake face, reducing cutting forces, cutting temperatures, surface finish, and productivity, as well as the tool’s durability. After the tooth profile of the hob is modified, it can reduce the tooth profile error of the hobbed gear due to the hob’s rake angle, so this hob can be used to