Off Topic Grinding Carbide tools

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Skiller1nc

Joined
Jun 27, 2016
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302
Simple question here, I'm going to make a carbide straightening chisel-like HSC, Jarod Todd, etc use.

I planed to just use a 1/4"x1" c2 carbide round, they are like $6 online and are 80 Rockwell c. Can an angle grinder with a regular cutoff wheel cut this and will a cubitron or similar belt grind it to round the nose?

Combined with a $6 HF ball-peen I think this is the cheapest method if you don't already have any carbide to use and seems like it would work perfectly
 
Skiller1nc said:
Simple question here, I'm going to make a carbide straightening chisel-like HSC, Jarod Todd, etc use.

I planed to just use a 1/4"x1" c2 carbide round, they are like $6 online and are 80 Rockwell c. Can an angle grinder with a regular cutoff wheel cut this and will a cubitron or similar belt grind it to round the nose?

Combined with a $6 HF ball-peen I think this is the cheapest method if you don't already have any carbide to use and seems like it would work perfectly
Click to expand...
No !
 
What about a masonry drill bit? This has a carbide tip that's to a dull point. That should be the type of carbide that will handle shocks from hammering.
 
Ken H> said:
What about a masonry drill bit? This has a carbide tip that's to a dull point. That should be the type of carbide that will handle shocks from hammering.
Click to expand...

I think most have written that the tip will brake sooner or later. I tried using a massive 14mm bit that I already had and it works (for now). There are also carbide tipped hammers for breaking tiles. I found one that weights 150 g instead of usual 50/75g and that's what I will try next.
 
I made the one pictured below using a diamond Dremel wheel. They are cheap at Harbor Freight. I chucked the carbide in the drill press and used the diamond wheel to shape it.

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Stupid question coming in, but what about using green silicon carbide grinding wheels to shape the tungsten carbide? Such wheels are standard in bench grinders in old machine shops where they are used to shape and sharpen carbide tipped lathe tools.
 
C_Claycomb said:
Stupid question coming in, but what about using green silicon carbide grinding wheels to shape the tungsten carbide? Such wheels are standard in bench grinders in old machine shops where they are used to shape and sharpen carbide tipped lathe tools.
Click to expand...
That's what JT uses. If you have no other need for it, it's a bit expensive to buy one for making just one hammer, though. The diamond Dremel disks are about $5 for four of them and work well enough.
 
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