All Titanium knife?

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Karen
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All Titanium knife?

#1

Post by Karen »

I have never seen a true TI folding knife. Does Titanium hold a cutting edge? Is it too expensive to use as a blade? It's my understanding that TI does not rust, only tarnish. I know that there are Titanium knives out there. I saw multi blade tools made of TI that the Special Forces use. I think they use them because they will not become magnetised.

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Th232
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#2

Post by Th232 »

IIRC, pure titanium is very soft (40 on the Rockwell scale, can't remember which one), but I'm not sure about alloys though. I think it comes down to pure economics on this one, very expensive, and a very small market.
Will

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#3

Post by 224477 »

Th232 wrote:IIRC, pure titanium is very soft (40 on the Rockwell scale, can't remember which one), but I'm not sure about alloys though. I think it comes down to pure economics on this one, very expensive, and a very small market.
Grade 6 titanium alloy?
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Th232
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#4

Post by Th232 »

224477 wrote:Grade 6 titanium alloy?
Sounds about right, link

Further link on the use of titanium as a sword blade here. Some of it doesn't apply, but still some good info there. Most ti alloys can't be hardened past the mid-40s.

Edit: Coatings are still an option for ti knives though.
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#5

Post by The Deacon »

It is used for very special purpose knives. Dive knives for military personnel working around underwater mines is one example, since anything magnetic "may be hazardous to your health" if used around them. Granted, those fall more into the category of "sharpened prybars" than "real" knives, but it is one place that a ti blade is more appropriate than a steel one.
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#6

Post by recoil »

3 of my all titanium folders from Warren Thomas.
Very lightweight, the edge is coated in tungsten Carbide to help in edge holding.
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#7

Post by Piet.S »

Mission knives is known for these.
http://www.missionknives.com/
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#8

Post by swede »

Also, Benchmade produced an Emerson folder with a Ti blade, and just like Dave's beauties above, it had a tungsten carbide edge.
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STR
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#9

Post by STR »

I've seen them cut pretty well when they were serrated partially. These cut softer materials pretty good but they never got the kind of biting edge most guys are used to. However, for most daily tasks I'm sure one could fit into your pocket and work just fine. I like those all titanium knives posted above. I'd never seen those before. Nice.

Anyone that has had to grind titanium can appreciate the work that went into those. Titanium is the hardest stuff to grind of anything I've ever messed with. When I make a folder of all titanium handles in .100 or more thickness its a lot of hard grinding to get it all cleaned up for those final pictures. Grinding a blade out of it is a whole different league though.

I made my nephew a small titanium key ring type knife just to keep him happy because he always wants his uncle Steve to make him a knife. It isn't much bigger than a key, but believe me it was hard as all get out to just grind that edge down to a nice thinness on something that small and its only on one side like a chisel. I didn't start out to do that one side grind concept. Its just what I did after working on one side for over an hour to get it where I wanted it. I really have a new appreciation for the durability of this metal.

If you just wanted a semi sharp pry bar type tool for opening boxes, or maybe cutting rags and rope or needed a salt water environment tool with total corrosion resistance an all titanium knife is the ticket..

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Ed Schempp
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Titainium

#10

Post by Ed Schempp »

There are many Ti alloys, some heat treatable some not. Beta C-2 can approach RC 50. 6-4 will reach the low forties, commercial pure will not. As a constant use knife it is probably not going to meet your expectations...Take Care...Ed
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#11

Post by severedthumbs »

Here is the nicest all titanium folder ever made, the blade is beta c-2 and has been heat treated. Image
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#12

Post by Senate »

i have an all Ti neck knife from W. Thomas and all i can say is that Ti doesn't make a very good cutting steel.
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jaislandboy
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maybe a Spork?

#13

Post by jaislandboy »

Not to hijack your thread Karen.....just thought I'd post a pic of my TAD Gear Spork I got today! :D

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Karen
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nice pics

#14

Post by Karen »

recoil... i'm so jelous. those knives are beautiful.
severed thumbs...that looks like a very solid knife. is it heavy?
jaislandboy i want one of those little spoon/fork combos. that would be great for my flightpack. under $20.00??
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#15

Post by jaislandboy »

yeah Karen just check out :
http://www.tadgear.com/edged%20tools/ta ... _spork.htm
but one caveat: lube the new spork Before opening it..... ;) Mine was Unlubricated and was quit gritty (hate the sound of Ti on Ti in the morning! :p )on its 1st opening....pretty cool little slipjoint......weighs nothing....! :cool:
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Karen
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#16

Post by Karen »

Thanks for the link. very nice.

hmmmmm....if it only had a blade... :-)
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The Mastiff
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#17

Post by The Mastiff »

Karen, the Mission brand Beta Ti Titanium Ti knives are first rate in every way if you don't mind dropping that kind of money. I have a thing for Ti knives, amongst other things. Quality control. grinds are excellent.

The problem is what real purpose do I put mine to. It's ended up being a safe queen. I used to think metal detectors wouldn't pick them up but I know better. They make a very nice model that has an A2 carbon steel blade and all titanium everything else.

For aroung $50 dollars the knifecenter of the internet has some Titanium bladed diving knives with rubber like handles. They're about as good as you'll get fot your money.

Sometime are you going to tell me why you left NC? Regards, Joe
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Boker Culinary

#18

Post by JD Spydo »

It seems like I recall that Boker was marketing some Titanium kitchen knives. One of the big selling points that they claimed was the fact that bacteria could not grow on the blade. But I don't recall them claiming that it had any great cutting ability.

However if you are only cutting veggies and lean meats I would imagine your edge would hold up very well.

With the newer technologies being discovered in the field of metallurgy I think it will be just a matter of time before we see Titanium blades that will be usable under rough conditions.
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#19

Post by stonyman »

Recoil, that W.T. design karambit is NICE! Can you share some more information about it. A titanium knife model that I would not mind havig is Emersons Legriffe model. Now this Thomas design that recoil just posted for our viewing pleasure.
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#20

Post by Havatoo »

Won't the existence of H1 steel make the need for titanium knives, largely, unnecessary?
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