Diamond wheel dressing

Not sure if Norbide is what your refering to, but here is a link to a Norbide dressing stick on ebay:

"Trade name for boron carbide, an artificial abrasive; chemical formula, BC. It is markedly harder than silicon carbide and second only to diamond."

Best, Steve

Milgil:

I've never used the stick you mention, but here's a post from a few years ago I made.

============================================================ I'm certainly not an expert in diamond wheel dressing, but I've done it. First you should get the diamond wheel running as true as you can with an indicator (actually I put a piece of thin shim stock between the indicator ball and the diamond wheel so it wouldn't flatten out my indicator ball). I then took a toolpost grinder used for our manual lathes, made a flat plate for it and put it on the surface grinder. Took a green wheel (silicon carbide), and adapted it to the toolpost grinder. Dressed the green wheel and then proceeded to crank the spinning toolpost grinding wheel under the spinning diamond wheel, taking a tenth or two at a time. It actually worked better than I thought it would. Sidewheeling the diamond wheel might pose greater difficulties. One further note; after you've dressed the diamond wheel NEVER take it off the hub. Always remove the hub AND the wheel as a unit. And to lessen the chance that anyone might remove the wheel from the hub itself write "Do Not Remove" on the wheel and then epoxy the spanner wrench holes so it can't be easily removed. ============================================================

Does it have roller bearing ways or flat ways? That slightly rippled finish can be a sign of roller bearing ways, or marginal spindle bearings

Gunner

No its not norbide, that black very hard hand dresser for touching up regular aluminum oxide & silicon carbide grit grinding wheels. It reminded me of a piece of very soft carbide, but like I said it would wear fast & remove diamond from the wheel.

BTW the Okomoto grinder is in very nice shape. It has roller way bearings & has gives a very nice finish on steel with regular wheels.

One other thing, any recommendations on grinding wheel selection for titanium? We use these green ones, probably silicon carbide 60grit. They do ok, but wheel load generating heat is a big issue. We should have water I know.

Here;

On page six you will see the Norton Brake Controlled Truing Devices and good instructions on how to properly true and dress superabrasives;

A couple of years ago, the Forman at the shop where I have some carbide form drills/tools made, sent me a slug of molybdenum to take the taper out, and reduce the radius on the leading edge of my finish wheel on my Agathon.

Matt