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Quenching and Distortion Conference


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Three papers AND chairing a section? B)

Going by the titles, I wonder do you also have to present the papers in German, or am I just looking at the German program guide?

Way to Abschreck them Ritzels, Dude!

 

The first sentence of the scope sounds great from a knifemaker's perspective until I remembered we have no control over the "function of the component" part, which is why we have to anticipate occasional use as a prybar or screwdriver or hammer in our knives...

 

"Heat treatment aims at establishing within a component a microstructure that is able to withstand any loading conditions that arise from the function of the component."

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Three papers AND chairing a section? B)

Going by the titles, I wonder do you also have to present the papers in German, or am I just looking at the German program guide?

Way to Abschreck them Ritzels, Dude!

 

The first sentence of the scope sounds great from a knifemaker's perspective until I remembered we have no control over the "function of the component" part, which is why we have to anticipate occasional use as a prybar or screwdriver or hammer in our knives...

 

"Heat treatment aims at establishing within a component a microstructure that is able to withstand any loading conditions that arise from the function of the component."

 

The conference is in English....You can get the paper titles in English...the papers I am presenting deal with the use of modeling to effect low residual stress and distortion. Using computational fluid dynamics to establish boundary conditions for finite element analysis to predict microstructure and distortion. This is the first time that some one has gone after an actual heat treating load, and modeled the complete load, predicted the distortion as a function of load position, and come up with proper answers, with the right direction and size of distortion. Hopefully it will be fairly ground breaking. The other paper determines the quench sensitivity of a specific aluminum alloy using the jominy end quench - very effective and simple way to predict properties. This ought to be a really fun and learning experience.

 

I can post the papers here, or at another location if any one is interested....It should be fun - how often do you get to do international travel on someone else's nickel and present papers to a very high-level audience? I am really looking forward to it - I missed the last one in Beigjing because it was over Thanksgiving, and I had already made plans with the family to go to Paris. I will let everyone know how it goes!

 

Scott

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The conference is in English....You can get the paper titles in English...the papers I am presenting deal with the use of modeling to effect low residual stress and distortion. Using computational fluid dynamics to establish boundary conditions for finite element analysis to predict microstructure and distortion. This is the first time that some one has gone after an actual heat treating load, and modeled the complete load, predicted the distortion as a function of load position, and come up with proper answers, with the right direction and size of distortion. Hopefully it will be fairly ground breaking. The other paper determines the quench sensitivity of a specific aluminum alloy using the jominy end quench - very effective and simple way to predict properties. This ought to be a really fun and learning experience.

 

I can post the papers here, or at another location if any one is interested....It should be fun - how often do you get to do international travel on someone else's nickel and present papers to a very high-level audience? I am really looking forward to it - I missed the last one in Beigjing because it was over Thanksgiving, and I had already made plans with the family to go to Paris. I will let everyone know how it goes!

 

Scott

 

Hi Scott,

I would love to read those papers. If you can link or post them that would be great.

Thanks

Patrick Hastings

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Hi Scott,

I would love to read those papers. If you can link or post them that would be great.

Thanks

Patrick Hastings

 

 

Scott,

 

Ditto, please post; that would be great!

 

Thanks!

 

Byron

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I'd love to see the papers, too!

 

 

 

 

 

The first sentence of the scope sounds great from a knifemaker's perspective until I remembered we have no control over the "function of the component" part, which is why we have to anticipate occasional use as a prybar or screwdriver or hammer in our knives...

 

"Heat treatment aims at establishing within a component a microstructure that is able to withstand any loading conditions that arise from the function of the component."

 

 

I've never gotten the prybar argument, though... why is it that a knife is expected to perform tasks outside of it's 'function'? I mean, I've never seen a sharpened hammer. That's called an axe, and as such isn't a hammer anymore, right?

 

I get into this discussion with one of my best friends all the time. He asked me about whether or not a particular wooden handle would be better than another for a shovel, because twice a year he breaks them... using it as a prybar to pull big stones out of the ground! The response from him as to why he can't go back and get the 6' prybar he has sitting in the shed is always the same, too - "I meant to bring it." or "I didn't want to walk back." Is this really a failure attributable to the shovel?

 

I know this is a hot topic, and I'm not trying to start a fight... in fact, I'm questioning this on Don's forum because there's a lot more level heads and reasonable people present here than in many other places, and maybe someone HERE has the response or insight that I'm missing!

 

If this is too far off-topic, tell me and I'll start another thread... or I'll shut the heck up, whichever general consensus prefers, as this has been hashed and rehashed forever.

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It used to be that humans were considered different from the other animals on the planet because we used language, but then they noticed quite a few animal types using language. It also seemed for a while that we were different because we used tools, but again observation showed us several other animals making and using tools...science has finally determined that the one thing that really makes humans different from the other animals on the planet is that we will design a tool for one purpose, then use it for a purpose that it was not designed for [often breaking it or the object it was used on in the process] :blink::lol:

 

This is the first time that some one has gone after an actual heat treating load, and modeled the complete load, predicted the distortion as a function of load position, and come up with proper answers, with the right direction and size of distortion. Hopefully it will be fairly ground breaking.

 

That really does sound like an amazing feat, being able to predict the distortion - a huge number of variables to model/account for, especially since you are talking about doing this for shapes a wee bit more complex than the average knife. We get to qualitatively predict the amount and direction of curvature induced by oil or water quench in our differentially hardened blades, but even with alot of practice my predictions are usually off by a significant amount - even when my estimate isn't very exact to begin with!

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