On 07/04/2020 04:23 PM, andy pugh wrote:
On Sat, 4 Jul 2020 at 22:08, Eric Keller <keller...@gmail.com> wrote:
Steel bonds to diamond, and then you are cutting with steel.
My understanding of the problem was that it is due to carbon being
soluble in steel. And diamonds are just expensive carbon.
This is likely to be much more of a problem with single-point turning
than with grinding, however,
Yes, but you have to get the diamond hot for the iron to be
able to dissolve into it.
Since the wheel has a bit of time to cool off as it turns
around, the diamond is always
cooler than the thing you are grinding. Either
water-cooling the diamond or just keeping the surface speed
down will allow the diamond to last a long time. Of course,
that also slows the cutting rate.
Jon
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