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How to grind carbide11/20/2022 ![]() ![]() Because of the speed and small diameter of the wheel, there was no heat build up and the resulting edge was polished and razor sharp.Tungsten carbide is a very hard material made from tungsten and carbon. At medium lathe speeds and holding the bit in my fingers, it was surprisingly easy to shape the carbide tip to what I needed. I held the wheel in a cheap keyless chuck mounted in the lathe to keep my fingers away from the big chuck jaws. I remembered this post so I dug through the never used stuff and came up with a package of small diamond wheels and an arbor that was less than $10 at Harbor Freight.Ī used and worn V shaped brazed carbide bit was the starting point and in just a few minutes I had my Carbide grooving bit. I needed a really sharp carbide grooving bit and I don't have one. Even after I resharpened the tool, it wouldn't cut. The tool may have been dull or high on the center and next I know, the tool rubbed and the SS rod hardened. I needed to turn a groove in a 1/4" stainless steel shaft. I read this post a few days ago and put it to use today. I'm not shure if I should leave this sharp corner, or endevour to break it a bit-on my green wheel, of course.-Brian ![]() They are cheap Chinese carbides, and were only sharpened across the end and on one side (Which I think is normal.) Of course now that I have sharpened 2 adjacent sides, they have one Hellish sharp point where the 2 egdes that were sharpened meet. Of course, I don't know if they will cut anything now, but Hey, they were dull before anyways. All of my carbide tools LOOK sharper now. I think this is in direct conflict with what somebody posted earlier. My green wheel is 3/4" wide, and so as not to rub a groove in it, I moved the carbide tools back and forth a bit while I was grinding them. Magoo-You get 10 points if you're old enough to know who Mr. Of course, this made my glasses fog up instantly, so I not only looked like an outlaw, I stumbled around a bit like Mr. ![]() ![]() I looked a bit like the Lone Ranger, and wondered what the nosy neighbours who can see into my garage were thinking. Couldn't find my expensive HEPA air mask, so I tied an old T shirt over my nose. I just sharpened all of my carbides on my new green wheel. ![]()
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