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What's the strongest a fixed blade can be without weighing too much?
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NJBillK
Custom Leather and Fixed Blade modifications.
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Oh Yea! Well, Your post is full of speculation too!
Harumph...
He might own one of each knife made within the last 5 years, and we would have no idea. I doubt it, but they all Could be his.
It seems like the majority of the topics he opens in general is just to get a rise from folks and, albeit subtly, have an aire of antagonism to them.
Aside from the following, I am just going to refrain from posting in his future threads unless I can succinctly offer information pertinent to resolving his quandry.
While he may not be a troll, he seems to have some trollish tendencies.
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If you will notice in the photos, plenty of knives have design flaws, a hole drilled above a finger choil, a hole drilled above the indentation for the stick tang, and others that I will not be bothered to go back and look at.
If you cannot see that these are obvious flaws in the design of that knife in particular then I don't know what to tell you aside from "Read more, post less.".
If you are planning on buying any one of these knivee, please specify which one and why. If not, then just chalk them up to your equivalent of a "do not buy" list.
What are you wanting to do with the knife? Are you wanting and actual knife you can use or something just to take out in the backyard and hack at a junk pile and try to break it.
Tool for the job. I've heard every knife maker ever say there's always a trade off in knife making . The same knife that you can beat car hoods or chop down trees is not going to be a knife you want to use for finner cutting tasks.
Sure a big thick sharpened prybar can say for example peel an apple but it won't do it as a thinner knife designed for cutting.
Theres no magic steel or heat treat to get a blade that will stand up heavy abuse or whatever you want to do with a huge blade,that won't break no matter what and still slice like the thinnest slip joint . It doesn't work like that.
Now of course you can make thick blades sharp and I've seen folks do kitchen prep with these thick busses for instance.
Be realistic in your expectations is all I'm saying. If you want something so you can make youtube videos smashing old cars or bricks or whatever it is get the tool for the job.
If you want to hack stuff and break stuff get one of these...pics coming
Tool for the job. I've heard every knife maker ever say there's always a trade off in knife making . The same knife that you can beat car hoods or chop down trees is not going to be a knife you want to use for finner cutting tasks.
Sure a big thick sharpened prybar can say for example peel an apple but it won't do it as a thinner knife designed for cutting.
Theres no magic steel or heat treat to get a blade that will stand up heavy abuse or whatever you want to do with a huge blade,that won't break no matter what and still slice like the thinnest slip joint . It doesn't work like that.
Now of course you can make thick blades sharp and I've seen folks do kitchen prep with these thick busses for instance.
Be realistic in your expectations is all I'm saying. If you want something so you can make youtube videos smashing old cars or bricks or whatever it is get the tool for the job.
If you want to hack stuff and break stuff get one of these...pics coming
NJBillK
Custom Leather and Fixed Blade modifications.
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beat you to the punch buddy. He just chooses to not respond since it defeats his argument.
If you are up at 4 am thinking of topics like this, do yourself a favor and buy one of these and be done with it...
Ok, hopefully that is the last post of mine...
I just wanted an excuse to hack somethING with my winkler lol. Got my fix moving along
Knives usually break at the tip, then somewhere along the edge, then in the first inch of the handle. Usually the break goes along with a stress riser that is part of the design.
It isn't common, but why did this happen?
QUOTE]
I guess I can't say 100% that your knife is, but my G.E. Chen Duty has 3D Micarta scales, not G10...but, he did make several Duty knives that had some variations, so could be. Actually, this picture looked so familiar to me, as I really became a big fan of Mr. Chen when this knife came out a couple years ago. I'm not going to accuse you of anything, but I do feel pretty confident saying that this knife (pictured here) is the same blade that G.E. Chen broke himself in testing, and posted pictures of in another knife forum (EDCfo.....com). The break is in the exact same place, the blade has "CPM 35VN" stamped on it, instead of the "CPM S35VN L" that just about all of the knives he released for sale had....so, I must say that my previous post in this thread is incorrect, as I thought I was looking at a knife that the OP had purchased & then broke, but it's actually G.E. Chen's test knife.
So, as I'm writing this, I keep looking back at his knife & your post OP, & I'm coming to the conclusion that you're not saying that YOU broke this knife, you're simply showing us a broken knife & hoping to create some dialogue about why it, and others, break....do I have it right now?? In any case, Chen learned from his testing & changed the design of his tang to make it much stronger, so this is the original design, not the one he released, and he tested it/broke it by throwing it at a masonry wall over and over again until it broke, so he could study where & why it broke & make the corrections....not the most scientific method perhaps, but you can't say he didn't put his heart into it!
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NJBillK
Custom Leather and Fixed Blade modifications.
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And here is displayed the problem with discussing random pictures taken off the internet. The context is completely lost. Turns out the maker broke that knife on purpose. It wasn't some unexpected catastrophic failure.
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OK. Taking another long look at the begiining...when the OP says he could post more than one line...
He is presenting examples he found on the internet of other people's broken knives, then asking "Why did this knife break?", and then he proceeds to tell us.
Got that, and they are plausible, and unstartling, theories of for why the knives broke, I guess. "Knives can break at stress risers."
So...thanks for those theories.
Still not getting the "What's the strongest a fixed blade can be without weighing too much?" question has to do with it, though.
He is presenting examples he found on the internet of other people's broken knives, then asking "Why did this knife break?", and then he proceeds to tell us.
Got that, and they are plausible, and unstartling, theories of for why the knives broke, I guess. "Knives can break at stress risers."
So...thanks for those theories.
Still not getting the "What's the strongest a fixed blade can be without weighing too much?" question has to do with it, though.
Hack up your wallet then send that axe to me...
Nice piece.
Thank You. Sure the cost is high ,but I like Daniel. A lot of things go on behind the scenes and Daniel puts tools in hands of people that need them when or if he can. Some people buy but some people don't if that makes sense either way Daniel delivers, figured I'd support him and his efforts. Back on topic and my apologies
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OK. Taking another long look at the begiining...when the OP says he could post more than one line...
He is presenting examples he found on the internet of other people's broken knives, then asking "Why did this knife break?", and then he proceeds to tell us.
Got that, and they are plausible, and unstartling, theories of for why the knives broke, I guess. "Knives can break at stress risers."
So...thanks for those theories.
Still not getting the "What's the strongest a fixed blade can be without weighing too much?" question has to do with it, though.
Seems like asking the people that broke the knives how they broke would be a much more effective way of answering the question. And also having the knife owners weigh the knives.
OK. Taking another long look at the begiining...when the OP says he could post more than one line...
He is presenting examples he found on the internet of other people's broken knives, then asking "Why did this knife break?", and then he proceeds to tell us.
Got that, and they are plausible, and unstartling, theories of for why the knives broke, I guess. "Knives can break at stress risers."
So...thanks for those theories.
Still not getting the "What's the strongest a fixed blade can be without weighing too much?" question has to do with it, though.
Maybe he's wanting strength to weight ratios or some other whatever that is over my head.
Fact is and this is not related to the post I quoted ,but fact is every blade has a weak point. They can all be broken. Op take a look at some eastern style blades. They are designed to bend easier but not break.
If a knifemaker approached me with an " unbreakable indestructible " blade I'd do one of 2 things . Laugh him off or get away from him before he just steals my wallet.
Typically things break where they are weakest or where they are experiencing the most load. There are plenty of engineering books out there that can be used to find the right equations and perform the calculations. Hibbeler has plenty of info in this book: http://www.amazon.com/Mechanics-Materials-Edition-Russell-Hibbeler/dp/0133254429. Chapter 6 is useful. Shigley has information in chapter 5: http://www.amazon.com/Shigleys-Mechanical-Engineering-Design-McGraw-Hill/dp/0073398209. Alternatively you could learn to use finite element method theory and software to model the knife, plug in the appropriate materials information, apply boundary conditions and loads, and see what happens.
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Thank you both! :thumbup: It's a big, thick and heavy chunk of almost-INFI steel; what's not to like!
:thumbup:
Also, it does work quite well; even a light swing is devastating against many objects that have been put in front of it LOL.
With it's brethren:
Yeah....that those "seems likes" were never addressed convince me I got no interest in getting sucked any further into this potentially pointless morass.
Get a Ontario Ranger RD7. Good luck breaking that.
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Or better yet, the RD Signature Series; 3/8" thick S7 blade next to a becker bk2...
:thumbup:
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Thank you both! :thumbup: It's a big, thick and heavy chunk of almost-INFI steel; what's not to like!
Also, it does work quite well; even a light swing is devastating against many objects that have been put in front of it LOL.
With it's brethren:
beautiful blades. but are you saying you cut the book cleanly in half with one swing with a half inch thick blade?
KingMC
The Pun-isher
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Thank you both! :thumbup: It's a big, thick and heavy chunk of almost-INFI steel; what's not to like!
Also, it does work quite well; even a light swing is devastating against many objects that have been put in front of it LOL.
With it's brethren:
I must know how to get that Parang, it's calling my name.
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