A Little Crowing...

Jerry Hossom

Jerry Hossom

Joined
Aug 1, 1999
Messages
3,036
Occassionally I do one that pleases me.

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This is the prototype for a similar Espada being done in CPM-3V. The blade here is 19-1/2" ATS-34 (differentially tempered), 25-1/2" OAL, weight 19-1/2 oz., 4" sharpened spine behind point, stabilized Bocote handle. Very fast!

BTW, this blade can be easily bent about 5" by hand. Not bad for that "brittle" ATS-34, huh?
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IMO, if it isn't heat treated by Paul Bos, it just isn't ATS-34.

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Jerry Hossom
www.hossom.com
 
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WOW

That sucker would make Crocodile Dundee Proud. What's it for?

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Brandon

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I've got the schizophrenic blues
No I don't
Yes I do...
 
Holy Cow .... I don't care for fixed blades, but that bad boy makes my eyes water! VERY NICE!
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Mark
AKTI Member #A000003



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" Knife Collectors Are Sharp People - Most of the time that is! "
 
Why its obviously a turkey slicer! Now just don't call ME a turkey.

phantom4

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who dares, wins


 
First time I have seen a differential temper on an ATS-34 blade. What is the RC range from spine to edge and what is the hardness of the tip? Is that large unsharpened region a style design or is it a functional grind?

I think I am going to have to learn a knife art just so I would have a use for such blades. Not that I need a reason except for the obvious, just that I would consider it a waste to have it and not be able to use it as it was meant to be used.


-Cliff
 
This type of blade is used in a Filipino Martial Arts style, called Espada y Daga or Sword and Dagger. Both weapons are employed together.

Cliff, the edge is about Rc57-58 as is the point. The spine is drawn down by virtually annealing it, with the edge held in a stream of flowing water while the spine is heated to a dull red with a torch. This is not something Paul normally does. He just did it on this one to test the method. I understand it is very time consumming, and a once only thing.

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Jerry Hossom
www.hossom.com

[This message has been edited by GaKnife (edited 05-08-2000).]
 
Crow all you want Jerry, This is a beautiful fighter, man, you out did yourself on that one. Bet it causes a Waxy woody! That is some beautiful handle material!

Jake

[This message has been edited by Jake Evans (edited 05-08-2000).]
 
Makes the phrase, "Live by the sword, die by the sword" almost appealing.

Thanks for sharing that one, Jerry. Makes it fun to log onto the forums when you see a stunning work of art displayed like that.

--Will
 
As I've said before, Jerry, YOU ARE THE MAN!!

That's an incredible piece of work. This sword weighs only 3 oz. more than one of your ATS-34 bowies. It's gotta move faster than light! And its wicked beautiful to boot.

I'm in lust!

Outstanding work, My Friend!

Mario

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Gaucho

Tuvo muy mala suerte...se callo en mi cuchillo.


 
Jerry,

Again, beautiful...sort of understatement.
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RE:ATS34. Does mean that will be the only differentially treated one?

sing

AKTI #A000356
 
Sing, yes this is the only differentially heat treated blade I expect to get from Paul. I normally have him harden ATS-34 blades over 11" only to Rc57-58, rather than the normal Rc60-61, to diminish concern for brittleness. The differential tempering was a bonus in this case.

Frankly, having seen Gaucho's abuse of his ATS-34 Bowie, I'm pretty confident in that steel enduring a lot more than people may think. It has cut through bone that chipped and rolled the edge on A2, without any troubles.

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Jerry Hossom
www.hossom.com
 
What Phil said.

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"People sleep peaceably in their beds at night only because rough men stand ready to do violence on their behalf."
George Orwell
 
Jerry,

>>I normally have him harden ATS-34 blades over 11" only to Rc57-58, rather than the normal Rc60-61, to diminish concern for brittleness.<<

Makes sense. Hopefully, no one is expecting to run around with this as a "utility" and expecting high edge retention. Kinda of a one or two stroke type of blade.
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sing

AKTI #A000356
 
Jerry
Very Nice!
Im glad others have diff tempered the stainless knife materials. I do it because many have said it cant be done .. Good choice for a long blade.
The diff temper helps in a situation like this blade.
I diff temper my 3v fighters and camp knives. Also the Kraits where the holes are. Stress is a bad thing where there are long blades for bending ,twisting ect or in a blade where there are points of stress (krait blade holes). The fighters that have been tested by select unbiased testers of my choice have chopped cinder blocks deer bones ect with my new fighters.. IT DOES MAKE A DIFFERENCE when there is an abuse factor. Knives have to be built to withstand abuse today. The blades that were tested that were full hard and marquenched did not stand up as well at all.

Fantastic job!!! Great knife!!! great design ...Great heat treat..

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Web Site At www.infinet.com/~browzer/bldesmth.html
New Web at www.darrelralph.com



[This message has been edited by Darrel Ralph (edited 05-08-2000).]
 
Thanks Darrel, that's especially gratifying coming from a master such as yourself.

In long blades, I have Paul draw CPM-3V down to Rc57-58 as well. Otherwise it is Rc60. I think that steel is almost indestructable. It's just amazing.

Then again, Gaucho put his A2 Espada through 3" of beef leg bone and it still shaved. With the right edge and temper, lots of things are possible.

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Jerry Hossom
www.hossom.com
 
Jerry,
That's realy wild! How many steps to the side do you take when you grind a blade that long??
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That looks like at least a two stepper in each direction. So far all my grinding is done with my BUTT firmly planted on a stool. If I did a blade that long, I would have to put wheels on it and have some one push me back and forth
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You have every right to crow over that one!
Neil

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Website just updated!
Blackwood Knives
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[This message has been edited by Dr.Lathe (edited 05-08-2000).]
 
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