Cbt

high desert

high desert

Gold Member
Joined
May 20, 2009
Messages
3,488
What exactly are the benefits of corrugated bevel technology? My searches don't reveal much.
 
The CBTs helps reinforce the pressure with a thinner blade so the knife itself is lighter but stronger, that's what it's meant for in a nutshell...
 
sweet thanks for asking that i had been wondering about that. thanks liu for the info, there needs to be a busse jeopardy , you would win lots of money :)
 
They are like a bunch of mini fullers.

You get a lighter overall blade, without loosing too much weight.


I think they look awesome! Especially when stripped.

Lot of people find the FBM to be their favorite big chopper, so they must work fine!
 
I don't think it really makes it stronger, it stiffens the blade while lightening it a small amount. By adding ridges it will take more force to get it to bend, but I don't think it will increase the amount of force needed to make it take a set or break it. Theoretically it reduces the amount of surface an object touches when the knife passes through it, reducing drag. ymmv.
 
Last Visible Canary said:
... Theoretically it reduces the amount of surface an object touches when the knife passes through it, reducing drag. ymmv.
Click to expand...

RedbeAR15 said:
I'm wondering about that...I always thought edges and corners created more resistance than a smooth surface
Click to expand...

I tend to agree with LVC on this. :thumbup: The CGFBM has a lot less drag when splitting wood than the B11 at the same thickness in my experience. That's the only real method of testing the friction I have found I could feel a difference as I haven't tried slicing cheese with them. :p
 
The CBT's won't make the knife stronger or more rigid.

A solid knife without the CBT should take more lateral force to bend. (I am not a physicist.....so take this with a grain of salt). But it seems like removing metal wont ever make an object stronger. Steel I beams are not used because they are stronger than a solid steel beam would be. They are, however enormously lighter! So the strength to weight ratio is great.

Same on the CBT.

What it does do is make it lighter without sacrificing strength.
 
Jerry Busse said:
Here it is boys!!! One of the meanest models to ever escape the Busse Combat Shop!!! This is one of two new models that will be going up within the next ten days!!!!

Blade length = 6 3/4"
Blade Thickness = 3/16"
SF Handles

This pic clearly shows our patent pending Corrugated Bevel Technology (CBT). The corrugated bevel not only greatly strengthens the blade but reduces the overall weight of the blade while reducing the cutting friction along the entire height of the bevel.

Please give the pic a moment to load.

Jerry
Click to expand...

:thumbup:
 
Bigfattyt said:
The CBT's won't make the knife stronger or more rigid.

A solid knife without the CBT should take more lateral force to bend. (I am not a physicist.....so take this with a grain of salt). But it seems like removing metal wont ever make an object stronger. Steel I beams are not used because they are stronger than a solid steel beam would be. They are, however enormously lighter! So the strength to weight ratio is great.

Same on the CBT.

What it does do is make it lighter without sacrificing strength.
Click to expand...

:thumbup: +1
 
AZTimT said:
I tend to agree with LVC on this. :thumbup: The CGFBM has a lot less drag when splitting wood than the B11 at the same thickness in my experience. That's the only real method of testing the friction I have found I could feel a difference as I haven't tried slicing cheese with them. :p
Click to expand...

Ah yes and no doubt the CGFBM is heavier than the B11, which may also have an effect on the physics
 
RedbeAR15 said:
I'm wondering about that...I always thought edges and corners created more resistance than a smooth surface
Click to expand...

it's always been a weird idea for me as well. The best examples I can think of are cheese and potato's. If you try to cut a potato that's really sticky like a yellow potato, you'll find that the knife sticks to the sides like glue. the more surface area that touches the potato as you slice, the more resistance you feel. Now try scraping the edge of your blade across the surface of the cut potato - you'll find that, while there is resistance, there is considerably less resistance than if you run the flat across it. The same can be said of cheese. By reducing surface space you reduce frictional drag resistance.

As far as strength added by cbt, I don't think it does. If you take a 3/16" plate of steel and bend it, it will take less force than it takes to bend a 1/4" plate. If you add perpendicular flanges to the plate (like an ibeam), the force required to bend it is significantly higher, putting it closer to whats required to bend the 1/4" plate. It will also increase the amount of force required to cause rotational deflection. It may not increase it to the level of the 1/4" plate, but it will get it closer and not be as heavy as the 1/4" plate.

So, rather than thinking of it as "is it as strong as the same thickness knife without it?" think of it as "is it stronger than the same knife that is as thick as the center of the webbing?". In this light, a 1/4" fbm will take more force to bend than a 1/4" cbt version - but a 1/4" cbt will take more force than a flat 3/16" fbm without adding the full weight penalty.


:confused::confused::confused:
I don't even know what I'm talking about.
 
but yeah, I have no idea. I'm trying to think of it as an easy analogy in my head without any physics backround and I'm not sure whats right or wrong.

I think this is the key to understanding the core principle: "For the same amount of material, an I-beam has greater rigidity and strength than does a simple beam" which is what I was trying to explain with my explanation in the last post. If you remelted a cbt fbm and reformed it to be flat, the cbt version would be stronger and more rigid than it's counterpart, because the flanges of it's I-beam like structure are wider, helping it to act like a thicker knife. But if you just take a 1/4" knife and compair it to a 1/4" thick cbt version, I don't think it will take more force to get it to take a set because you are just removing material.

weight to strength ratio, however, would go to the cbt.
 
RedbeAR15 said:
Ah yes and no doubt the CGFBM is heavier than the B11, which may also have an effect on the physics
Click to expand...

If we were talking about the same method of splitting wood I would agree. By your statement I am deducing that your version of splitting wood with a knife is mentally pictured like splitting wood with an axe as in chopping where differences in weight would play in as a factor.

My method is intended to remove weight differences as a factor. I place the blade on the end of the log and pound it through with a baton where the weight difference has little if any effect if using the same chunk of wood to baton the blades through. ;)

The bottom line is all science and technical talk aside, the results speak for them selves and it is what it is, fun with INFI. :D
 
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