CPM 3V grinding.

[jdm61]

I rough ground the bevels on my first blade made from CPM 3V today and had some observations. it was .172/.188 Aldo stock and I was using a fresh 36 grit Blaze belt and an 80 grit Regulite. In its annealed state, it seemed to grind quite easily but it also seemed like it built up heat more quickly than say 1084 or W2. Anyone else have that experience?

 

[james terrio]

It seems like higher alloy steels get HOT all of a sudden, instead of warming up gradually on the belt. I have no real data on that, but it does seem to be a pattern. I don't worry about it too much. I usually grind on two or more blades at a time, so while one is on the belt for a few passes, the other(s) are cooling in the slack can. It keeps the water from freezing over in wintertime

 

[Stacy E. Apelt - Bladesmith]

The more the steel resists the abrasive, the more friction is created = Hotter steel.

1084 will grind about the same as 3V with a sharp belt, but the 3V resists the belt more, and thus gets hotter faster.