Durable Sharp Edge Sharpening - Impromptu Video

BluntCut MetalWorks

BluntCut MetalWorks

Knifemaker / Craftsman / Service Provider
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Apr 28, 2012
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Rambling Impromptu video when I putting edge on 2nd of 4 production knives.

My old burr/wire-edge removal technique fold burr/wire by scrape edge laterally with a piece of wood. My recent edge integrity check also fold the burr/wire by crush/compressive them against hardwood surface. I, since, switched to using this new technique because it does both burr/wire removal and integrity check at the same time.

Test knife: Niolox 65.5rc ht 2.5 ringed ridgee handle

Thanks for watching.

 
Luong,

Thanks, .....
Please don’t keep tempting with Niolox goodness :eek:

How different the burr folding using this method (push apex to wood) vs older one (push apex sideways also with wood)?

PS: The knife reminds me of Cold Steel Frenzy :)
 
Last edited:
Thanks Chris!

I probably will make a more prepared video, which would go more into anatomy and removal physics(for various methods) of &burr/wire. Short answer to your question: Laterally push/scrape apex sideways put 2-3x lateral force on apex-decorated-carbides than matrix, as consequence some carbide interfaces are fractured & removed, hence higher edge irregularity than goal.

CSF has straight profile and wharncliffe edge vs this niolox hunter blade is 1/4" up from flat point/tip (has some belly) and whole knife has relaxed-shrimp (hahaha) profile.

Chris "Anagarika" said:
Luong,

Thanks, .....
Please don’t keep tempting with Niolox goodness :eek:

How different the burr folding using this method (push apex to wood) vs older one (push apex sideways also with wood)?

PS: The knife reminds me of Cold Steel Frenzy :)
Click to expand...
 
I found flat + super hard wood worked best, it allows very little penetration. Which would expose gaps/toothiness for target apex flatness (level of toothiness). I've tried/used glass at very low pressure and cut dampened barber neck-strip when sharpen edge for hair feathering (sharper than razor to scrape-cut hair between 2 fingers, yield clean angle cut with texture look).

I didn't test for low hrc threshold whence this technique won't work, especially steels with 1+um carbide. I am gut-guessing 15dps 58rc. Then for low rc, use softer woods.

miso2 said:
BluntCut MetalWorks BluntCut MetalWorks
Thank you for posting the vid.
I would like to try it myself.
How hard the wood should be?
Would MDF plate work?
Click to expand...
 
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