Hello everyone!
I was cruising around on the internet, and I found these amazing videos. Its a series of 10 videos, where they do everything from cut through a steel pipe, to cut through a cinder block, and try to break this blade! Its a shame it was done to such a cool knife, but its amazing to see what it can do at the same time.
However, it does raise some interesting questions. If you look at video 6, they do a flex test of the blade, by sticking it up in a vice and pulling on the handle. Interestingly, the blade just bends. It doesn't come back to neutral (It has almost no springy-ness). I mean yes, it does look like it took a fair amount of force to bend it, and as he says its very stiff, but other knifes tested on the site bend up to 35 degrees and return to normal.
If these are forged out of leaf springs, wouldnt they be pretty flexible? What I think has happend is this. When the blade was forged, it was heated. This ruined the temper on the original leaf spring, and annealed the blade (Made it soft). This effect can be seen in other of these videos, where hammering on the back of the blade begins to mushroom it over. However, the blade was then selectively hardened along the 'sweet' spot of the blade, allowing it to cut through steel pipes and concrete blocks.
Another thing i have seen from these videos is an issue with the tang. When they stand on it, it bends. Other knifes tested by this guy was able to bear his full weight, without bending or snapping or even deforming. Again, I think that this is due to the Ang Khola not having any heat treat on the body of the blade, and only on the cutting edge. A possible solution could be to offer the AK with a full tang?
Anyways, what are your thoughts on these videos, or qustions I have raised?
Also, heres video 1 of 10. You might want to skip it and move on, as the first video is pretty dull:
http://www.youtube.com/profile?user=noss4#p/u/71/REb0WUDoxHo
I was cruising around on the internet, and I found these amazing videos. Its a series of 10 videos, where they do everything from cut through a steel pipe, to cut through a cinder block, and try to break this blade! Its a shame it was done to such a cool knife, but its amazing to see what it can do at the same time.
However, it does raise some interesting questions. If you look at video 6, they do a flex test of the blade, by sticking it up in a vice and pulling on the handle. Interestingly, the blade just bends. It doesn't come back to neutral (It has almost no springy-ness). I mean yes, it does look like it took a fair amount of force to bend it, and as he says its very stiff, but other knifes tested on the site bend up to 35 degrees and return to normal.
If these are forged out of leaf springs, wouldnt they be pretty flexible? What I think has happend is this. When the blade was forged, it was heated. This ruined the temper on the original leaf spring, and annealed the blade (Made it soft). This effect can be seen in other of these videos, where hammering on the back of the blade begins to mushroom it over. However, the blade was then selectively hardened along the 'sweet' spot of the blade, allowing it to cut through steel pipes and concrete blocks.
Another thing i have seen from these videos is an issue with the tang. When they stand on it, it bends. Other knifes tested by this guy was able to bear his full weight, without bending or snapping or even deforming. Again, I think that this is due to the Ang Khola not having any heat treat on the body of the blade, and only on the cutting edge. A possible solution could be to offer the AK with a full tang?
Anyways, what are your thoughts on these videos, or qustions I have raised?
Also, heres video 1 of 10. You might want to skip it and move on, as the first video is pretty dull:
http://www.youtube.com/profile?user=noss4#p/u/71/REb0WUDoxHo
