Dust indeed!
So surprising how "apparently soft" green wheels are compared to grey Al
oxide "rock wheels", yet, the grey wheels just get the carbide hot, while
the green wheel really takes the carbide--and itself!--down.

Surprising also what is making the "hazardous" list. M42 (cobalt steel), is
on there, wrt to grinding. Ditto chromium, etc.

Yeah, diamond wheels....
Open yer wallet....

You can have diamond tools custom made, for actually less than you might
think. We do a repeat specialized facing jobby using custom-made diamond
cup wheels on a surface grinder, from a company in NJ--nice to deal with.
Iffin anyone needs this type of stuff, email me and I'll dig up the partics.

Now the question is, how does one make *diamond tools*?? Abrasive jets &
crazy glue, I guess.
----------------------------
Mr. P.V.'d
formerly Droll Troll
"Harold and Susan Vordos" wrote in message
...

"Proctologically Violated©®" wrote in message
...
Ahm no 'spert, but...
I think you gotta *grind* carbide. Fwiu, that's how cutters/drills are
made
to begin with.
"Green wheels" are what we use to make lathe tools out of carbide blanks.
They wear very fast, but remove carbide relatively rapidly.

Folks use green wheels, but smart ones use diamond wheels. :-)

The problem with the "green wheels" is that they're not all that much
harder
than the carbide, so it's tough on the wheels, the dust from which
(silicon
carbide) is very bad for your health, to say nothing of the carbide dust.
The wheels tend to chip the carbide instead of cut it, so the end product
(your lathe tool) leaves a great deal to be desired.

For the OP------turning carbide isn't something that you'd do with
success.
It's far too brittle and would chip instead of cut, leaving the trailing
edge a mess, assuming you could come up with a medium that would machine
it
at all. It really should be ground with diamond or CBN wheels.

Harold