I need to make an 82 degree included tapered end mill from carbide. The cutting face needs to be over 3/8 long. I have made many similar cutters, starting with a used carbide end mill. I use a surface grinder and spin them in a whirley gig to circle grind, then grind a primary relief. I will add a secondary relief or hand clearance as necessary.
I wondering if there is a better method to rough the tapered shape. On HSS cutters I rough them out with a 36 grit on a belt grinder, that saves a lot of time on the surface grinder.
I wondering if there is a better method to rough the tapered shape. On HSS cutters I rough them out with a 36 grit on a belt grinder, that saves a lot of time on the surface grinder.