Wlodek
Aluminum
- Joined
- Nov 15, 2018
Is there a simple way to sharpen the concave tip of internal rotary broach? The tip is a concave spherical surface (attached an exaggerated picture) and the radius is different for different broach sizes. I assume this can be ground using a small ball grinding wheel (or a small small wheel with circularly dressed edge) while the broach is rotated against the side of the wheel, on centre. I have a Cincinnati No. 2 Tool & Cutter Grinder and a setup like this does not seem to be easy. I have as well a Deckel SO, but again, I see no way to do it on it.
I realize that excessive grinding of the tip will reduce the broach size, but just touching it up will still keep it withing tolerance.
I realize that excessive grinding of the tip will reduce the broach size, but just touching it up will still keep it withing tolerance.