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Post by pellius on Mar 14, 2023 1:07:59 GMT
I thought this video was mildly interesting.
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Post by carbon on Mar 15, 2023 17:28:24 GMT
I thought this video was mildly interesting. At least mildly interesting and somewhat informative. They did leave out one important aspect of sharpness however, namely edge refinement or polish. For example two identical blades and geometries, one finished to a high or mirror polish vs one finished to 600 grit will cut very differently. Which will cut best depends on the material being cut and the type of cutting e.g. draw cutting vs push or chopping.
Thanks for the video.
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Post by RufusScorpius on Mar 15, 2023 20:31:04 GMT
Meh. Katanas were sharp like that. It's the reason why they can cut through hot gun barrels.
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pgandy
Moderator
Senior Forumite
Posts: 10,296
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Post by pgandy on Mar 16, 2023 0:15:03 GMT
That video supports my thinking in some ways, but makes it more complicated. I have long thought the material being cut reflects the edge needed. That is, one type of edge, one grind, is not universally the best for all things. What works best in one case may not be the best in another scenario.
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Post by larason2 on Mar 16, 2023 20:16:48 GMT
I like a website I've mentioned on here before: scienceofsharp.comIn my opinion a much more interesting treatment of the subject.
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Post by RufusScorpius on Mar 16, 2023 21:26:49 GMT
That video supports my thinking in some ways, but makes it more complicated. I have long thought the material being cut reflects the edge needed. That is, one type of edge, one grind, is not universally the best for all things. What works best in one case may not be the best in another scenario. Yes, one edge doesn't do everything. A razor sharp ax for example would get stuck in the wood, so it needs a slightly rounded edge for it to work properly. Its all about the edge angles and geometry. I am thinking that I remember that calvary sabers had duller edges than infantry sabers for the same reason as the ax. You don't want your sword to get stuck in bone when you're at full gallop.
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Post by treeslicer on Mar 17, 2023 5:30:17 GMT
I like a website I've mentioned on here before: scienceofsharp.comIn my opinion a much more interesting treatment of the subject. Yup. That one's my favorite.
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Post by rannh1 on Mar 19, 2023 0:53:05 GMT
Meh. Katanas were sharp like that. It's the reason why they can cut through hot gun barrels. What's this then ?
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Post by AndiTheBarvarian on Mar 19, 2023 13:47:04 GMT
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