本文详细研究了不同旋向楔横轧成形螺旋面在不同坐标下的方程。
The equations of different helix in cross wedge rolling in different coordinates were studied in this paper.
根据空间啮合原理以及坐标关系推导被加工左右旋齿轮的齿面方程；
Tooth face equation of producing gear is derived based on spatial meshing theory and coordinate relation.
在球坐标系中，建立了球形滚刀的各个螺旋面方程，推导了侧后角公式，并给出了计算实例。
The helical surface equations of the spherical hob are set up in spherical coordinates. The formulas of the side clearance angle and numerical examples are given.
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