弧面分度凸轮轮廓面为一空间不可展开螺旋面，传统的加工工艺很难满足其精度要求。
Since the profile of the globoidal indexing cam is a spiral surface, traditional machining technology couldn't meet it's accuracy demands.
并对渐开线螺旋面包络蜗杆分度凸轮机构的接触域面积进了实例分析计算。
For the involute screw surface enveloped worm indexing CAM mechanisms, the contact area was calculated.
常见的共轭曲面包括齿轮的齿面、空间凸轮的工作面和螺旋面等，其中螺旋面被广泛应用于螺纹、蜗杆、螺杆泵及金属切削刀具等领域。
The common conjugate surface includes tooth surface of gear, working surface of solid CAM, helicoidal surfaces existing in spiral burr, worm, chip flute of cutters, and so on.
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