Machined blades

Lorien

Nose to the Grindstone
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Knifemaker / Craftsman / Service Provider
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Dec 5, 2005
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Forgive me if this has already been covered somewhere else;
Apart from the obvious visual difference, what is the purpose and reasoning behind machining marks on blades, a la Groove?
It seems to me that they create multiple stress risers, (probably not a big deal for a folding knife, but...) and that cleanability is compromised. Additionally, after many sharpenings would the machined channels cause an inconsistent and lumpy edge? And do they not create more friction while cutting?
I sell Kershaws in my bike store and am asked this question from time to time.
I don't have a good answer, 'cept that it looks cool, which for most is good enough.:jerkit:
Is there functionality, or is this simply a cool factor thing?
 
The grooves are mostly aesthetic. But they also DECREASE surface friction between the blade and cutting medium, making it easier to cut.
 
I guess removing surface area would decrease friction.
I was expecting a few more comments on this topic, as the machined blade seems fairly popular. Seems my question is for the most part answered. Thanks bud.
 
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