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Reusing Broken Carbide
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Gunner Asch[_6_]
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Reusing Broken Carbide
On Sun, 10 Sep 2017 13:10:43 -0700,
wrote:
On Fri, 8 Sep 2017 16:51:22 -0700, "Bob La Londe"
wrote:
I was thinking about picking up a silicone carbide "green stone" for
grinding carbide. In my milling operations I do generate a bit of broken
carbide. I was thinking if I could grind it to fit specialty tools made to
clamp or hold on the shaft sizes I might never need to buy another insert
again.
Will a standard star wheel dressing tool square up a green stone when it
gets worn?
A standard star wheel will dress a green stone. But If I was you I
wouldn't even consider using a green stone for grinding carbide. Use a
diamond wheel. They can be had cheap from China, will way outlast
silicon carbide, and they grind carbide to a much finer edge. Much,
much finer. Much, much, much finer. And much betterer too. Really. I
grind a lot of custom carbide tooling for use in my shop. I use
diamond abrasives exclusively for this.
Eric
Green wheels are typically used to rough the cutter to shape and
size..and then diamond is used for the finish and size.
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