Kershaw Composite Blades

hunter s thompson said:
Autoopen your original question was not ridiculous, it is a valid question but the whole destruction test thing just sets me off. Thats why my response was so venomous. It really was not helped along by a fairly infamous troll who really enjoys stirring the pot. So i probably should have stepped away from my keyboard and let it go If you were serious then I apologize if you were trolling it will all come out in the wash. Time will tell.
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Only one? :confused: I spotted two! :D
 
I'm sorry if my post aggravated people, but I hate people complaining about a technology they don't like.

If you don't like it, don't buy it.

Rather than attacking the technology and questioning Kershaw's methods, move on. Disregard it, and stick to what you are comfortable with.

The whole torture test thing is a bit rediculous to me. It's a knife, for cutting, not a survival tool for the apacolypse. Kershaw CB are EDC folders, not Busses, don't expect them to be comparable in the strength test.
 
I have not seen or heard of any instance of a Kershaw CB breaking along the weld.

I own four Kershaw CB and have had only good results using them, in addition, getting CPM-D2 and ZDP-189 at low price points is great.

So until I see any evidence to the contrary, I'll keep purchasing them.
 
AAaaahhhhhh. Its good to be back.
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Here is my favorite Composite Blade!

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Eight Trigrams said:
Well, you and nozh have a point, inasmuch as I doubt that added strength has anything to do with Kershaw's decision to manufacture laminate folder blades. I do believe that a properly laminated blade can be quite tough. (Fallkniven, anyone?) However I cannot see any task that would make a CPM-D2 folder blade fail before the locking mechanism or pivot on said knife failed first, even if run at very high hardness. No matter how much you wanna wish otherwise, folders are not fixed blades and can't use that much strength in the blade.

Besides, if Kershaw's D2 is so fragile that it can't be put in a FOLDER without laminate protection, then they better start recalling those Outcasts post-haste! They're not even CPM steel! They'll explode like hand-grenades if you try to whittle with them! OMG PLEASE THINK OF THE CHILDREN!!! :eek:

I will say, though, that I loved the blade on the one composite Kershaw I owned, the JYD II. Holy crap that knife was awesome. Probably the best liner lock I've ever owned, and the lamination did provide SOME rust protection to the blade, besides making it look cool as all hell. If only the clip didn't suck and wasn't bendy enough to cause the knife to fall out of my pocket, I'd still be using it today. :grumpy:

But yeah... decoration and a modicum of rust protection seem to be what it's for, at least on the folders, but I'm willing to pay the small premium for it just because I assume it's what KAI has laying around and so would only save a couple bucks if it WASN'T laminated. Plus it really does look swell. :D

Now if we saw a Galyean-designed composite FIXED-blade.... then we might see some real benefits...
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There is a difference between a laminated blade and a Composite blade (a least as far as Kershaw is concerned).

A laminated blade has layers of steel arranged like a sandwich, with the edge of the middle layer being exposed as the blade is ground.
Kershaw examples would be the Ti SG2 Junkyard Dog II or the SG2 Blur.

A composite blade would be more like assembling two puzzle pieces.
The edge where the two steels meet is welded, there are no "layers" as in the laminated blade. The Tyrade, ZDP Shallot, and Composite JYD II are examples.
 
This technology is indeed very cool, it has huge potential but is currently limited. first off a zdp edge is nice, but most problems with zdp com from micro chipping, and tip breakage not the blade simply snapping in half

I wonder if (or probably when) it is possible to use this composite technology with a soft steel back, and a tungsten carbide edge. I imagine that if the spine steel were differentially quenched so as to be harder next to the carbide, and softer next to the spine it would prove to be a gradual change in hardness, and flexibility, and thus reducing stress on the weld. it could be amazing.
 
Nebulae said:
This technology is indeed very cool, it has huge potential but is currently limited. first off a zdp edge is nice, but most problems with zdp com from micro chipping, and tip breakage not the blade simply snapping in half

I wonder if (or probably when) it is possible to use this composite technology with a soft steel back, and a tungsten carbide edge. I imagine that if the spine steel were differentially quenched so as to be harder next to the carbide, and softer next to the spine it would prove to be a gradual change in hardness, and flexibility, and thus reducing stress on the weld. it could be amazing.
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Any good welder worth his salt will tell you the welded area will have a higher tensile strength than the two pieces that were joined. In short, the weld is stronger than the sum of the pieces.

I've been using ZDP almost exclusively for several years now, and I've had zero issues with chipping. One ZDP blade I have has a Krein regrind. No chips.


And just out of curiosity, why did you resurrect a 9 month old thread?
 
orthogonal1 said:
See bold added text.
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You said this "Sharpening a stick, to make a peg or such, is a common outdoor practice that puts a transvers load on a blade when you bite into the stick. If the bond is weak, this could result in delamination."

I wish I knew the number of CB knives Kershaw has sold. It is safe to say they have sold a bunch. Show me one that has broken. It is perfectly understandable to question how strong two different pieces of metal are after being joined. There has been plenty of explanation provided as to why CB blades are more than strong enough. If the blades are really that weak, surely someone would have broken one by now. Have you tried one yet?

I ask because I have a Kershaw CB Blur with a ZDP-189 edge I'll gladly send you to test and form your own opinion. Yes...I want it back. :)
 
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Like make titanium base and steel edge? Titanuim base with steel edge and carbide glass breaker on the tip..
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yes see this could make it truely special. I agree it seems kinda pointless to use two premium blade steels, but this technology could enable a whole nother generation of ceramic or carbide knives. it has so much potential.
 
morrowj_98 said:
You said this "Sharpening a stick, to make a peg or such, is a common outdoor practice that puts a transvers load on a blade when you bite into the stick. If the bond is weak, this could result in delamination."

I wish I knew the number of CB knives Kershaw has sold. It is safe to say they have sold a bunch. Show me one that has broken. It is perfectly understandable to question how strong two different pieces of metal are after being joined. There has been plenty of explanation provided as to why CB blades are more than strong enough. If the blades are really that weak, surely someone would have broken one by now. Have you tried one yet?

I ask because I have a Kershaw CB Blur with a ZDP-189 edge I'll gladly send you to test and form your own opinion. Yes...I want it back. :)
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Now there is a generous offer !! I will send you the ten dollars to join the forum if you want as well, not a problem for me to support a fine Forum such as this and to support my favorite knife company as well. You are a class act Morrow !

Dave
 
I was so close to joining in on the troll-smashing frenzy here, but then I looked at the date of the posts. It's not worth it to beat a dead horse. If someone wants to hate on the CB idea, fine. Both basic metalworking knowledge and real-world applications are proving them wrong already, so why argue with them directly?

Besides, that's less people you have to worry about getting the last available knife of a limited run before you.
 
This might be the dumbest thread ever (besides some of mine)...no idea why this was revived.

The japanese made swords of laminated, blended, and folded steel, some of them with several different steel formulae in the same blade for over a thousand years. They are still renown for their blend of toughness and hardness and cutting properties.

-Freq
 
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