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Heat Treating and Metallurgy Discussion of heat treatment and metallurgy in knife making.

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  #1  
Old 03-18-2016, 08:56 PM
jimmontg jimmontg is offline
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Jantz supply D2 bubble.

I had made a nice skinner from some "mill finish" D2 I bought at Jantz Supply and I put the handle on and started the final polish with a small buff with 1500 grit diamond compound and was just polishing it lightly to just "brighten" the blade and a small pit appeared. I stopped and rubbed it to see if it was a piece of grit stuck in the metal. It felt like a pit and wasn't sticking up. I kept polishing and the pit became a hole. I've never had this happen, has anyone ever found a small bubble in their metal? It was about 0.025 big.

Ruined the blade as it was down near the base. My skinner is now an experimental oyster shucker.
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Old 03-21-2016, 05:40 PM
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WynnKnives WynnKnives is offline
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I would consider contacting them and seeing what they are willing to do about it... To me a good business will stand behind the product they sell.
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Old 03-22-2016, 04:35 PM
jimmontg jimmontg is offline
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Kind of hard too after I ground the bubble out. In all my years as a welder and sheet metal mechanic as well as some machining I have never once seen a bubble in base metal. I know it was sheared mill finish and probably from China, but I've never had a problem before with their D2 as even the company I worked for bought it from them as they actually have some of the best prices around for it. Just watch for the shear warp and compensate and it is good stuff.

I was just wondering if anybody has ever seen this before. I've seen bubbles in welds, but never in base metal.

Last edited by jimmontg; 03-22-2016 at 04:43 PM.
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blade, diamond, handle, knife, made, metal, mill, polish, problem, sell, skinner, small, supply


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