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Cutting Demonstration

Cutting Demonstration

A group of friends met to “reenact” and compete in cutting reeds, cans, etc. using knives, swords and katanas.
We cut several canes tied, empty cans and bundles of reeds (of 4 inches), starting with a bunch, following by two, three, four and five bundles of reeds (each of 4 inches in diameter).
I took my kitchen knife and was greatly encouraged. The objective was fun.

Knife on high as to behead the enemy.
And the knife goes!
Is going through…
Finished through and the enemy still stands
Continues…
And continues standing
Still alive…
Do not want to drop…
But it begins to bend…
And… Finally drop!
Totally expired!!!

The sequence of images was taken from the film.
Is clearly seen as the knife passes through the reeds, but they do not feel the impact and stay in their place. This indicates that the bundle of reeds did not feel the impact. After all day of cuts, the sharp edge is still very good although having a hardness less than optimal (the “known” 60 Rc).

Something similar happened with the can, despite being placed on balance over the rushes, did not feel the impact, took a moment until it fell.

The knife threatening…
Going fast towards the target
Is cutting…
Has been cut and the head falls
The body doesn’t move even
Still in place, did not notice that his head was cut
Moves a little…
Continue leaning slowly…
Loses stability…
And want to fall …. when the decapitated head is reaching the floor.

All this without sharpening the knife the entire day. The objective was to test the cutting power and durability of the cutting edge.

The Knife

This is my modest kitchen knife which cut the cans, the reeds and the reeds without sharpening. And humbly returned to his daily work in the kitchen.
The blade is made of AISI 420 steel, hardened to 57-58 RC. Size: 5/32″ x 2″ x 81/4″ (4 x 50 x 210 mm, and the ergonomic handle is of Guayacan.