Steel and diamond

Use a CBN tool instead?

Regards, Tony

If you are referring to diamond impregnated resin wheels, keep the pressure very low to avoid tearing up the resin, and clean the steel powder off the wheel frequently. I use meths for the latter.

Cliff Coggin.

No, it's metal bonded. I was more concerned about the diamond dissolving in the steel. Presumably it should be kept cool, so a slowish speed and coolant - suds or perhaps water.

I thought about using graphite as a lubricant - would that do anything? Any other ideas?

Ta,

-- Peter Fairbrother

The main diamond attrition process is chemical and temperature sensitive. It's no longer a problem at hand honing surface speeds. Run the wheel at the lowest surface speed that removes metal an acceptable rate.

Darex drill sharpeners use a single low speed diamond wheel for sharpening both carbide and HSS drills.

Jim

The following is quoted from a email sent by Greg Brookes of Eternal Tools. It refers to diamond drills, but I daresay the same priciples apply to your tool.

"Remember that like all diamond drills pressure must remain light and have plenty of water circulating in and around the work."

Cliff.

1. First of all, you should ensure that the adhesive for diamond tools is good enough, because the steel being ground may also absorb diamond particles. Here I recommend the adhesive made of alloy powder:
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2. There should be enough good cooling devices. Common water cooling may affect the steel material, which you need to pay attention to;
3. Select the appropriate diamond particle size. Select the appropriate particle size according to the grinding effect you want to achieve. Generally, the life of diamond tools with large particle size will be longer.