Sharp and Durable Japanese Sword: Katana

In the 10th century in Japan, Katana, a sword uncovered as a result of the services of Japanese fighters against the feudals, has remained the sharpest sword in the world ever since. We look at Katana, one of the most important parts of Japanese culture.
In the times when the samurai establishment was active, only the daimony, or those allowed by the feudal lord, could carry these swords. The transport of katana and short sword wakizashi was the symbol of being an important person.
What makes katana different from other swords is its construction and usage. It is the product of an art dating back 1000 years. this sword is made of steel at three different carbon ratios and has an aerodynamic cross-section. the sides are made of medium carbon steel while the inner part is made of the lowest carbon steel. the sharp portion and the three parts are made of steel with the highest carbon content. This is the reason why the sword is inclined when given the sword.
Katana is a very tough sword. not to be based on long fights, but to bring the exact death in a single stroke. On the katana there is no blood trough like other swords, because it is mower only. no strokes are used. Katana's only knife part of the work does not end. each piece is a separate craft, for the tsuka, sheath, protection (tsuba) is poured for separate sweat.

Katana's sharpening is a separate art. this sword is both polished and sharpened. and this master does not make the sword, but different masters.

In katana use, the aim is to kill the enemy with a single blow. therefore, the one side of the katana is rather sharp, prone to skid and slightly inclined to give the user the force of movement during impact. this curve is not preferred, but is also used for stabbing.
katana was originally a samurai sword. The production of a catana lasts for 1 to 1.5 years. of course, with new techniques shorten the event I do not know, but this is the ideal time for a true katana master. Since the katana will be held with two hands, it is usually made of shark skin in order to protect the handle against slipping and sweating.
length is made proportional to the owner of the sword. When the average Japanese size is calculated, it starts from 1.40 to 1.60-70. and if I do not remember it wrong, 3 types of steel are created at different points. if the desired sword cannot be obtained, then that labor is completely wasted, the master will do it again.

Katana is known as the world's sharpest sword. The goal is to cut already. can even split the bullet in two. but no matter how perfect a master the sword is, there is no soul. gives the soul its owner. in soulless hands, but only to make one cut himself out. katana owner is effective as a whole.
How is Katana made?
Today, we can catch fire with a single move, in the past there are more easy methods, but the iron and iron masters in Japan and the Far East, the chop of an iron and make the flesh of fire.
The quality of a katana passes through its total beatings. Although it is very easy with hydraulic systems in the past, it took quite a long time in the past, just in terms of hand power.
the tamahagane is heated in fire until it becomes a core, and then it is beaten and the ore is removed. This is quite a long and difficult process, even if the parts of the quotes are so important, "aman how much of this, let me throw it" so no. then the pieces are separated as kawagani and shingani, shingani is called the heart of the sword and kawagani is called the body of the sword. these parts are broken into pieces with a hammer and divided into pieces and sword pieces that will form.

The fractured parts (kawagani) are properly aligned on a higher melting point. on the top of the increasing foamy from the tamahagane iron, covered with a wet paper on the clay is poured. This prevents the clay parts from falling. In addition, it prevents the oxygen in the environment from interacting with carbon, ie it prevents the formation of carbon dioxide. it also accelerates heating / burning / cooking / cooling.
the steel parts are removed from the oven and flattened with the help of a hammer and re-introduced into the oven by paper / clay processes. this process is done repeatedly, until the steel is flat. it's over, it's not over.
the piece of steel in the middle is divided and folded into the clay water. When it comes to the chorus, it is removed, beaten, divided into two, folded back into the oven. this makes the steel more dense. This process continues several times until the carbon emission ends. The kawagani is set aside and moved to shingani.
shingani pieces are also arranged in the same way, covered with wet paper, soiled in clay water and put into the oven. shingani is also folded over and over again. until the carbon emission is over.
The kawagani is beaten in a long way and placed in the folded shingani. this combination consists of "3 million layers" as a result of folding. then it is started to be formed and formed into a shape. The sword is beaten to the shape we know. When it comes to the image of a long sword, its tip is cut off.
After that fine workmanship. the heated sword is angled. the forging process further refines the sword. then hard iron is sharpened with the help of an abrasive. but still not the level we want, it's still blind. cut it.
clay A more dense layer is applied to the back of the sword, which is harder and a thinner layer is applied to the face. after the slurry has dried, it goes back into the oven. Furnace about 1000 degrees Celsius.

the sword is removed from the oven when it comes to a certain temperature. so the sword is hardened. Our sword is ready. detail from here. where the sword ends and the handle begins to be hammered from the copper and a symbol that defines the owner is added. (usually the dragon is made of) the wooden handle is wrapped in a special knit leather, all the parts are combined with the hatori hanzo comes out.

More than 50 kilos of coal is spent in this work, for months to work. I did so it was not done. Since the use of swords is a very slim, special and talented job, in ancient times every swordsman was expected to make his own sword.

A culture older than 2000 years, a human being is surprised to think so. men have developed such a technology 2000 years ago, have made such accumulation and passed it on from generation to generation. still doing this system with katana masters.

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