Destructive behavior

L

LHKnives

Joined
Dec 11, 2001
Messages
312
Here we go a testing a new design, working on the perfect heat treat for a HARD use knife. I`ll give more specs on this knife once I`ve got everything figured out, I will tell you that it is for the cadets graduating from the USMA ( United States Military Academy ) and of course I`m sure you all realize that this steel is O-1. I ended up purposely breaking the blade to see the grain stucture and it was fine...VERY FINE like satin! but it still needs work, I`m not satisfied yet!

Cutting through a bolt
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Cutting through 1/8" steel
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Close up of the edge after cutting through the 1/8" steel
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YIKES! Impressive tests your doing there!:eek: I think that qualifies as hard use.:eek:
Have you taken any pics of the broken blade yet so we can see the grain? Did you edge quench or full harden it? What's the Rc at the edge? What's your HT recipe? I don't wanna wait till ya got it figured out! WAAAHHHH!!!:( :rolleyes: :D
 
I am impressed in a positive direction. That is being mild about how I feel. Now, will you share your HT receipe??

Thanks and thanks for the post.

Roger
 
etp777 kciks a rock at his feet and tries to look nonchalant.

Care to share a little bit of your HT method? LIke every step, in detail, with specfic temperatures, times and everything else. ;)
 
I'm with you etp. If you're going to show it off lets see it all. I want to learn too.

Roger
 
I'm not a knifemaker & I'm impressed with what you're doing with your O-1! Then to have knifemakers say they are impressed ...... well I'm awed! :eek: :eek:
 
I am impressed by what has been reported by him. That is sure. However, I do not recognise him from my little over a year here. If he is real he will be back with something. If not he may not. If he says it is propriatory he should not have presented his report in such short manner without being a bit more humble. We shall see.

On the other hand I may have just stepped in it. He could be a true master that all else here but me is aware of. If that be true I eat crow.

Roger
 
Well, we should always learn to look before leaping. I took the trouble to vistit his web site.

I'll go to Krogers tomorrow to see if they have fresh crow this week. Think I would like to smoke it this time. That deep fryed flavor is getting old for me.

Awful nice looking work! I like.

Roger
 
Ron has been here for a while, he also posts on CKD quite a bit. I very much like his knives. I believe he has shared his heat treat secects on the CKD before, but I could be wrong.
Kyle Fuglesten
 
I believe him now. If he shares it will be great. If he does not - well I just take back what I said - that's all. I know when I'm wrong.

Roger
 
LH,

I have visited your generous link and will study it more tommorow. Outstanding, as far as I noticed on a quick scan.

I will be particularly interested in you quenching. I do think, as I scanned over it, I noticed you are multiple quenching.

Do you see the shadows in your tool steel as it becomes critical (non-magnetic)?? I find it very difficult for me but I make a point to see them and must have all outside light off to do so. I have been told that those experienced can see them in day light. I can not imagine ever me being able to.

Thank you very much for sharing with us your HT of O1. I will most definately study it in detail tomorrow.

Roger
 
I own 3 of Ron's knives with a couple more on order. He 'crafts' a fine product & is always '...thinking outside the box.' I think you will find that a little salt & pepper & barbeque sauce will make that 'crow' more palatable. :D :D
 
Thanks,

The heat treat is still really in the R&D process, but from some testing I`m finding it is leading to a tougher blade. What I`m trying to achieve is a blade strong enough to cut steel with minimum damage, be able to bend the 90, and yet still have a hard enough spine so if a hammer or rock is used to drive the blade through wire, or bone or what have you, the spine will not mushroom to badly. This is tough to do, I`m also trying to say hey...O-1 can and will surpass your original expectations of it, regardless of what you`ve hear about it. As I said the heat treat is in the R&D stages, and although I`m close to my goal, I may not be able to reach it. Every steel has it`s limit, stay tuned to find out if I do it or not.
 
The most retentive I have been able to do so far has been with O1. I have several times posted on this particular forum my receipe, which has been taught me by Tim Zowada. However, I have never forged a blade and therefore all mine have been of the removal method. The HT, in basic theory, is same - I think. I believe strongly in when to pull the steel from the quench and when to begin temper. I also place great faith in a multiple quenching. Even on certain steels that may not benefit from a multiple quench I, so far, think it not bad. O1 is a steel I think benefits largely from this.

I believe, truely, the best thing we can do is put magnets away and not use them for testing HT. Using magnets will help cause us to be late. Watch for the shadows to finally leave and pull and quench immediately. Pull from HT within less than 10 seconds after complete austinitization.

Roger
 
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