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What is a burr? - part 3
10 years ago, I wrote a pair of articles - What is a burr? part 1 and part 2. These were based on results from straight razor honing experiments, where the sharpening angle is typically 8 degrees per side. More recently, I have been studying burr formatio
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High Impact Ceramic
In 2018 I wrote an article about ceramic blades where I showed that the brittleness of the material (Yttria-Stabilized Zirconia - YSZ) makes it difficult to produce a refined, keen edge and that there is little value in doing so as it will microchip quick
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Seven Misconceptions About Knife Burrs
The title is provocative, but these 7 statements are too often made without reservation. As with most things, the reality is nuanced and depends on multiple factors. My intent with this article to demonstrate that knife burrs can take a variety of forms a
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Carbides in 15V
In December 2022, I purchased one of the Spyderco Manix 2 sprint run knives in 15V steel produced with the heat treatment developed by Shawn Houston (Triple B Handmade knives) that produces an impressive Rockwell hardness of 65 HRC. CPM 15V steel from Cru
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Carbides in S110V - Part 3/3
I will describe four methods which lead to different outcomes for sharpening this S110V knife. Many other approaches exist, but there are a finite number of final outcomes for microstructure and geometry of the cutting edge. Beyond geometry, the amount of
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