This paper produces a new way of grinding the hole of a helix flute Archimedes spiral hob: a bob is orientated in three tapers.

• 介绍了一种采用三圆推销定位磨削阿基米德螺线滚刀内孔的新方法，该方法避免了圆周齿距误差和螺旋槽导程误差的影响。