F.F. D2 better than INFI?

cjpgeyer

cjpgeyer

Joined
Sep 7, 2006
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Just got the new Tactical Knives, and they proclaim "the top bar for knife performance is now higher than it has ever been" with Friction Forged D2.
It cut 0.5 inch manila rope a thousand times, still able to 'shave', indicating "an edge holding performance of more than 10 times that of existing top level knives".
It was put in a vise and bent 90 degrees, then 115 degrees and did not crack, but did take a set. "To the best of my knowledge that is a blade toughness and edge holding performance never before available from any previous blade manufacturing method at any price."



So the edge has a RC of 67? It still needed sharpening after field dressing and skinning two boars. The blade has a hardness of RC 44.

I am sure this is an interesting advancement of edge technology, but I am not seeing much advancement over INFI, unless edge hardness is tantamount.
How 'bout y'all?


:confused:
 
BWhahahahaha.....
Whatever. I've learned to come to ignore the cry of "SUPERSTEEL" It's crap. Just give any steel a few years, and it won't seem any better than any of the other high quality knife out there. AFAIK, ZDP is probably better.
 
It is very well promoted technology two last Blades has articles about it.

As well as I know they apply well known friction welding technology and equipment to blades. I hope Busse will try this out too.

Thanks, Vassili.

I am wondering if Busse has their special composition steel - INFI, can they came with another one? Like with high Carbon content and little bit of Cerium or Lantan which prevent it from being brittle...
 
The friction forging only hardens a narrow strip right along the edge. The remainder of the blade is simply under-hardened D2. It is a little like the way that the kamis harden the edge of khukris by quenching the edges with poured water. Once you sharpen through that hard strip you are into 40 RC material. INFI is a better base material for a hard use blade than D2. For lighter use you might be better off with just super-hard solid D2.

In a way I think laminated blades are a better form of magic. They are tough and you can keep sharpening them until you reach the spine and never run out of hard core material. (Just be careful not to baton them using rocks because they can delaminate.)
 
Hmmm . . . friction forged you say. How is that better than . . .

FUSION FORGED IN A RAT INFESTED NUCLEAR SCRAP YARD BY SCOTCH-DRUNK, CIGAR-PUFFIN', CRAZY-A$$, STEEL-GRINDIN' HOGS​

FRICTION IS FOR FAIRIES!!!:barf::D
 
If fritioc forged D2 were better than INFI, Busse knives would be made of friction forged D2, bottom line. They aren't and that is all I have to know. I had heard at a Blade a while back how Jerry and crew heat treated D@, maybe for the Safari Skinner, and upon testing the lateral strentgh in a vise, it took a set but didn't snap. Don't know the particulars, but it was interesting.
 
Ummmm...

1. Don't believe everything you hear or read.

2. Actions speak louder than words.

:)
 
Progunner said:
If fritioc forged D2 were better than INFI, Busse knives would be made of friction forged D2, bottom line. They aren't and that is all I have to know.
Click to expand...

You are aware that it is a proprietary process, much like INFI is with Busse. Using your argument, they can claim that if INFI was as good as FF, they would be making their blades out of INFI....
 
cjpgeyer said:
It cut 0.5 inch manila rope a thousand times, still able to 'shave', . . .

:confused:
Click to expand...

Wow! They cut 1/2" manila rope a thousand times?. . . . Hmmmm. . . We did 2,771 pieces of 1" manila rope, (That's twice as thick) in a live demo and the knife was still shaving well past the 2,000 piece mark. . . I guess that would translate to 4,000 half inch cuts. . .

1,000 cuts?. . . Nice appetizer. . . What's for dinner? :D :thumbup:

Jerry :D
 
ok, so what happens with FFD2 is that it is a localized hardening process with really fine grain. The remainder of the blade is soft to give the knife a similar performance to a differentially heat treated steel. But it attains an Rc of 67 which is well above most D2 knives.

If you are asking if the edge on an FFD2 knife will outlast INFI in regular cutting of soft tissue, I would have to say yes based on hardness and overall wear resistance with an Rc of 67.

But when you start hacking into hardwoods, bone, I would say INFI would smoke it bar none. INFI is considerably tougher and will take much more abuse. Anything that would chip out D2 might not do anything but slightly roll INFI. There is no doubt that INFI would smoke it in a hard use situation.

D2 is NOT a tough steel by any means. It is not even a hard use steel. This is not uncommon knowledge. FFD2 will not be any tougher than a differentially treated version. It is still a stainless steel or semi stainless. But D2 is a great steel all it's own. I prefer it to other stainless steels.


You all know or some of you do, how Jerry takes his search of better steels and processes, seriously. I do not think there is a knifemaker out there that has tried more strange, oddball steels than Jerry. The FF process is not proprietary, it is a known process and there is no secret behind it. Anyone can do it if they have the money to buy the machinery.

I would love to see a comparison between the SwampRat D2 knife versus the FFD2.
 
Jerry Busse said:
Wow! They cut 1/2" manila rope a thousand times?. . . . Hmmmm. . . We did 2,771 pieces of 1" manila rope, (That's twice as thick) in a live demo and the knife was still shaving well past the 2,000 piece mark. . . I guess that would translate to 4,000 half inch cuts. . .

1,000 cuts?. . . Nice appetizer. . . What's for dinner? :D :thumbup:

Jerry :D
Click to expand...

INFI!!!!!! :D:D:D:D :thumbup::thumbup: ...Not knockin' D2, and I like that steel, but folks can twist words 'til the cows come home... End of the day, HOW does it hold up in "the field"? Advertisers make a living twisting the truth, and as long as it's not an out & out lie, somehow it is legal to do so. IF this new D2 was as good as the claim, then they'd have publicly tested it against INFI and another few "tried & true" top end knife steels instead of just talking (advertising) about how good it is.
Just my opinion, I could be wrong... :D
 
fur hell's sakes, now i REALLY need a drink :confused: :confused: :confused:

wait, i am drinking, ok, i'll get another one... later



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