EmGo
Diamond
- Joined
- Apr 14, 2018
- Mechanization of movement of the spindle with the mill along its axis, for uniform wear of the mill. Movement does not occur during cutting.
That's the normal method. What I was talking about is either "minch" or "cash" and involves moving the cutter a miniscule amount during the cut.
The advantage is that the hob wear is uniform across the entire face of the hob. The disadvantage is that it turns a simple spur gear into a non-differential long-lead helical that you have to compensate for.
But it does do a really nice job of keeping the hob uniformly sharp
(Both Pfauter and Cleveland have used that method, can find out more from old Pfauter technical manuals. Personally, I think a CNC Cleveland could be a killer conversion. Those things are brutes.)