If you whacked 2 blades together

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Nov 8, 2000
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Edge against edge, would the harder blade nick the softer one or would edge geometry decide the issue?

:confused:
 
Both are a factor, which ever one is more different is likely to be the greatest influence. It should be mentioned that along with the hardness allowing the edge to resist compaction, if it is so hard that it is brittle is may in fact chip out and the softer knife take less damage if the impact is very violent. If the knives are pressed together in a vice with no lateral snaps it can be pretty much all hardness.

-Cliff
 
Six of one, half dozen of the other. Alot would go into it, including the type of steel that was used for each blade.
 
that question being asked makes me wonder what some swords that saw action looked like after being blocked a few times. iron and steel wasn't then what it is now so would a nice sword be worthless after a battle?
 
mlawson.....don't REMIND me. I....sold.... an old wakizashi with battle cuts. It was still just fine. Nice black rust on tang...oh hell.

:grumpy:
 
"If you wacked two blades together", you would prove to the world that you are a moron.
 
There's a reveiw here somewhere in which this was actually done, I think the knives were a Gurkha House khukuri and a bowie. I could be wrong, I'm just sure that one was a khukuri. I just remember the result wasn't very pretty on either of them. In short, it's not something I would try myself. I don't think edge geometry would have as big an effect as hardness, because no matter how thick either edge is, relatively speaking it's still extremely thin and hard as a cutting medium.
 
Busse did this was a couple of knives to show how much of an effect geometry can be as opposed to hardness. Ref :

http://www.bladeforums.com/forums/showthread.php?s=&threadid=136448

If the geometries are similar but the hardness levels really different then hardness will dominate. You can for example cut large chunks out of the 45 HRC fantasy knives with ~60 HRC quality cutlery steels.

A number of knifemaker so things similar to this to show the quality of their knives. Phil Hartsfield has cut the edges off other knives with his. As noted there is a lot more to this than just the quality of the steel. So care needs to be taken when interpreting the results.

A number of posters on the HI forum have whacked the khukuris into very objects including at times other knives.

-Cliff
 
Originally posted by mlawson
that question being asked makes me wonder what some swords that saw action looked like after being blocked a few times. iron and steel wasn't then what it is now so would a nice sword be worthless after a battle?

A proper saber parry is done with the side of the blade
 
MelancholyMutt, It depends on the type of parry whether you use the edge or the side. If your opponent uses a straight down cut to the head you will often hold your blade edge-up horizontally to protect your head (I forget my parry numbers). If you held the blade with the side up you would probably have it knocked out of your hand.
 
Does anyone else remember the guy that computer designed the blade steel and made a few demos, looking for financing last I heard? The demo I am remembering had his blade suspended over some damascas or possibly an old quality Japanese layered blade, huge notch cut into the edge of the other blade, his blade looking pristine, mainly because they swapped out his blade after the destructive test?

Had a pair of fairly nice kitchen shears that had detachable halves for cleaning. They cut well. One side was fairly obtuse and normal scissors like, the other blade almost had a knife edge. Loved those scissors. My 3 or 4 yearold got ahold of them, disassembled them and rather enjoyed banging and clanging them together briefly, but not briefly enough. I miss those scissors....
 
Just strap a couple of knives to two opposing clay-pidgeon throwers and let 'em rip!! yeee haawww.
:D
 
My father collects swords, he has a WWII Samurai sword with some interesting rectangular nicks in it, it looks like something even thinner than the samurai blade sank into the samurai steel about 3/32", a few times. I'm not sure of the edge hardness of WWII-era mass-produced smaurai swords, but I thought they were pretty darn hard.
 
A good analogy to Cliff's statment, "wood is a lot softer than glass, but I bet I can break your windshield with a 2x4."

So many variables.
 
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