Grinding super thin blades

[JTknives]

What are your tricks for grinding super thin blades. I mostly do real thin full flat grind blades and had an issue for the first time the other day. When I say thin I'm talking a 2" wide blade that's around .05 at the spine and flat ground from edge to spine. Makes a very flexy blade that slices like a light saber. Normaly I don't have an issue but I had a weird thing happen where the belt ripped a chunk out of the blade about a 3/8" behind the edge. Just poof gone and there was a hole. Never had it happen befor so I'm wondering if this has happened to you. I saved the knife by making it not as wide and grinding the edge back till the hole was removed. Another kinda issue I have sometimes is bowing away from the grind. I grind my thin blades after heat treat and sometimes even after normalizing, heat treating and tempering I still get a bow. I can straight this out mostly by grinding the other side and causing the bow to go back the other way. Then balance the grind on the left and right to keep blade straight. This last blade I'm working on I forged out of a roller bearing and it's got an 8.5" fillet blade. Went through the normal normilazing and triple quench step down cycling and heat treating at 1500. Blade ended up at 67RC. Tempered to 62RC and proceaded to grind. I got it very close to straight but I thought the normalizing and stress releaving cycles would have helped the bowing issue. But it's not an every day thing just a annoying glitch that pops up time to time.

If there is any advice I can give on grinding thin blade just ask, more then happy to share what I know.

 

[Rhinoknives1]

I have profiled, Drill and then HTed ALL of my knives now for over 15 years, before I grind the bevels.

I use Sharp fresh belts for almost every knife, I use the VSM Budget Ceramic from Scott at Tru-Grit. When any Ceramic wears down to about half, I'm done using it for bevel grinding and put it in the profiling & hogger pile.

They start to build up too much heat and possibly tear out like you are talking about??

Also you might have been using to heavy of a grit belt?

I set the bevels with a 36, clean up with a 60G and then refine with a 120G before going to finishing grits & Scotchbrite belts.

 

[Maelstrom78]

I know that when I am wet grinding to get a wire edge for sharpening too low of a grit can tear the edge.