Blade Competition knife

Cobalt

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Dec 23, 1998
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Ok, So what is a competion blade. Well it is a one day use blade only. So it does not have to last more than one day of hard use. Sort of like a Dragster. It goes hard for short distances instead of long haul. The current INFI is designed for the long haul so there can be improvements made to make it go harder for 1 day and who cares of the day after.

What would it take to make an SHBM or BM-E into a Blade cutting competition knife:

1. first we cut the talon hole down until the blade is 15 inches in length.
2. We thin out the edge to where it can slice and chop equally.
3. Modif the heat treat so that it is a differential temper with an Rc of 63 at the edge and an Rc of 40 at the spine. That way the knife can bend beyond 90 degrees.

can anyone think of anything else:thumbup:
 
Cobalt said:
Ok, So what is a competion blade. Well it is a one day use blade only. So it does not have to last more than one day of hard use. Sort of like a Dragster. It goes hard for short distances instead of long haul. The current INFI is designed for the long haul so there can be improvements made to make it go harder for 1 day and who cares of the day after.

What would it take to make an SHBM or BM-E into a Blade cutting competition knife:

1. first we cut the talon hole down until the blade is 15 inches in length.
2. We thin out the edge to where it can slice and chop equally.
3. Modif the heat treat so that it is a differential temper with an Rc of 63 at the edge and an Rc of 40 at the spine. That way the knife can bend beyond 90 degrees.

can anyone think of anything else:thumbup:

Are you talking about a Cutting Competition where they chop 2x4s, cut a row of water bottles, chop marked pieces of dowel rod, etc.

OR

The ABS Bladesmith test where they do do some cutting and then put the knife in a vise and bend it 90 degrees to see if the tip breaks.

Your first two points seem to point to the former while your third points goes to the latter.

Just curious.
 
Cobalt said:
Ok, So what is a competion blade. Well it is a one day use blade only. So it does not have to last more than one day of hard use. Sort of like a Dragster. It goes hard for short distances instead of long haul. The current INFI is designed for the long haul so there can be improvements made to make it go harder for 1 day and who cares of the day after.

What would it take to make an SHBM or BM-E into a Blade cutting competition knife:

1. first we cut the talon hole down until the blade is 15 inches in length.
2. We thin out the edge to where it can slice and chop equally.
3. Modif the heat treat so that it is a differential temper with an Rc of 63 at the edge and an Rc of 40 at the spine. That way the knife can bend beyond 90 degrees.

can anyone think of anything else:thumbup:

if i recall correctly jerry stated that infi is very difficult to differentially heat treat becuase of the way heat transfers through the steel matrix of infi.

and im not sure what effect bringing infi's rc up would be as far as fracture and chip resistence.
 
I like Jerry's competition idea:

1) Chop through a 2X4

2) There is then a helium filled balloon on a string, you must cut the string and as it is rising, poke the baloon so it bursts.

3) Then, you stab a target with the tip of the knife.

Your total score is how long from start to finish it took plus you get points for how accurate you hit the target and how deep it penetrated.
 
Rich_S said:
Are you talking about a Cutting Competition where they chop 2x4s, cut a row of water bottles, chop marked pieces of dowel rod, etc.

.


this one done at Blade East/West. What would be the point of the bladesmith one:confused:
 
Cobalt said:
this one done at Blade East/West. What would be the point of the bladesmith one:confused:
The one done at Blade IS the ABS thing. Besides, the rules require that it be forged.
 
If we are talking about the same competition:

I was reading in Blade magazine that air hardening alloys were not allowed. Does anyone knows why is this? :confused:

Is that because of what you mentioned (forged)?
 
Add a penetrator tip for stabbing floating ping pong balls.

While we're on the subject, has anyone else noticed how a certain magazine editor, who denigrates chopping concrete blocks, gets all misty-eyed about chopping multiple layers of hanging rope? Which demonstrated attribute is more likely to be involved in a real-life survival scenario - "I need to chop through this wall or hack my way out of this vehicle", or "I have this length of dangling bundled rope hanging here that I absolutely must make shorter in order to survive"?
 
MikeH said:
Add a penetrator tip for stabbing floating ping pong balls.

While we're on the subject, has anyone else noticed how a certain magazine editor, who denigrates chopping concrete blocks, gets all misty-eyed about chopping multiple layers of hanging rope? Which demonstrated attribute is more likely to be involved in a real-life survival scenario - "I need to chop through this wall or hack my way out of this vehicle", or "I have this length of dangling bundled rope hanging here that I absolutely must make shorter in order to survive"?

its a different type of testing, and a different intent for the blade. busse is still in a minority who beleive that a blade should be able to withstand anything a normal healthy body can put on it. if you take it as given that the abs doesnt beleive that a blade should be able to take hard (edit: heavy shock) impacts, a lot of their testing makes sense.

does the abs require that the blades for competition be heat treated in a "traditional way"?

can you machine your lines cleaner once forged, and do a full oven heat treat with nitro quench afterwards?
 
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