I’m in need of some recommendations for grinding wheel brands (Norton, etc.,) and specifications (Grit size, hardness, etc.,) for surface grinding soft 440C, ATS34, S30V, and CPM154 steel. My surface grinder is a manual feed 6x18 Chevalier and I have a spray mist coolant system. My objective is to surface grind the soft steel in knife size blanks (1 ½” x 9”), typically .145 thick stock to nominal 1/8 size (.125 +/- .001) and a surface finish of 32RMS. Any help would be appreciated.
Grinding Wheels for Surface Grinding Blade Steel
- Thread starter ArtB
- Start date
EdCaffreyMS
"The Montana Bladesmith"
In the past I have used Norton stones with good success. I think one of the reason this post hasn't gotten much response is that many of us have converted our surface grinders to run 2x72" belts. I simply use the same belts on my surface grinder that I use on my Square wheel and KMG grinders. From 50 grit, all the way up to 2000 grit. I have to admit, although I've been doing this for a long time, I'm not familiar with what "32RMS" means?
Fellhoelter
Well-Known Member
32 root mean square, it's an engineering spec for the maximum deviation between peaks and valleys on a surface.