The Japanese Katana aka The Sword of the Samurai

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The Legendary Sword of the Samurai

In here, I hope I can bring you a little information, and a few great opportunities. Now, a little about the Katana.....Katana is the word for "sword" in the Japanese language. It is also used specifically for a type of Japanese backsword or longsword in use after the 1400s: a curved, single-edged sword traditionally used by the samurai. Pronounced [kah-tah-nah] in the kun'yomi (Japanese reading) of the kanji, the word has been adopted as a loan word by the English language; as Japanese does not have separate plural and singular forms, both "katanas" and "katana" are considered acceptable plural forms in English.

The katana was typically paired with the wakizashi or shoto, a similarly made but shorter sword, both worn by the members of the warrior class. It could also be worn with the tanto, an even smaller similarly shaped blade. The two weapons together were called the daisho, and represented the social power and personal honor of the samurai. The long blade was used for open combat, while the shorter blade was considered a side arm, more suited for stabbing, close quarters combat, and seppuku, a form of ritual suicide.

The katana was primarily used for cutting, and intended for use with a two-handed grip. While the practical arts for using the sword for its original purpose are now obsolete, kenjutsu and iaijutsu have become modern martial arts. The art of drawing the katana and attacking one's enemies is iaido.

Authentic Japanese swords are fairly uncommon today, although genuine antiques and even modern forged swords can still be found and purchased. Modern nihonto are only made by the few licensed practitioners that still practice making these beautiful works of art.

Traditional katana are still made in Japan and occasionally elsewhere; they are termed "shinsakuto", and can be very expensive. These are not considered reproductions as they are made by traditional techniques and from traditional materials. Swordsmiths in Japan are licensed; acquiring this license requires a long apprenticeship. Outside of Japan there are a couple of smiths working by traditional or mostly-traditional techniques, and occasional short courses taught in Japanese swordmithing. The only Japanese-licensed smith outside of Japan, Keith Austin (art-name Nobuhira or Nobuyoshi) died in 1997.

A very large number of low-quality reproduction katana are available; their prices usually range between $20 to about $200. These cheap blades are machine made and machine sharpened. Usually they are minimally hardened or heat-treated and the hamon pattern (if any) on the blade is applied by scuffing, etching or otherwise marking the surface; there is no difference in hardness or temper of the edge. The metal used to make low-quality blades is mostly cheap stainless steel, and typically is much softer than true katana. Finally, cheap reproduction katana usually have fancy designs on them since they are just for show. Better-quality reproduction katana typically range from $200-300 to about $1000, and high-quality or custom-made reproductions can go up to $2000-3000. These blades are made to be used for cutting, and are usually heat-treated. High-quality reproductions made from carbon steel will often have a differential hardness or temper similar to traditionally-made katana, and will show a hamon; they won't show a hada (grain), since they're not often made from folded steel. A wide range of steels are used in reproductions, ranging from straight carbon steels such as 1070 to full stainless steels such as 440C or 5160, and specialty steels such as L6 or D2. Most cheap reproductions are made from inexpensive stainless steels such as 440A (often just termed "440").



For a fabulous selection of authentic reproduction and fantasy swords and armour, please be sure and visit Reliks Swords and Collectibles

The making of a Japanese sword 

This is a fantastic video. It gives you a brief but in depth look at what goes in to the creation of one of these magnificent weapons.

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Katana Anatomy 

Each blade has a unique profile, mostly dependent on the smith and the construction method. The most prominent is the middle ridge, or shinogi. In the earlier picture, the examples were flat to the shinogi, then tapering to the blade. However, swords could narrow down to the shinogi, then narrow further to the blade, or even expand outward towards the shinogi then shrink to the blade (producing a trapezoidal shape). A flat or narrowing shinogi is called shinogi-hikushi, whereas a fat blade is called a shinogi-takushi.

The shinogi can be placed near the back of the blade for a longer, sharper, more fragile tip or a more moderate shinogi near the center of the blade.

The sword also has an exact tip shape, which is considered an extremely important characteristic: the tip can be long (%u014Dkissaki), medium (ch%u016Bkissaki), short (kokissaki), or even hooked backwards (ikuri-%u014Dkissaki). In addition, whether the front edge of the tip is more curved (fukura-tsuku) or (relatively) straight (fukura-kareru) is also important.

The kissaki (point) is not a "chisel-like" point, nor is the Western knife interpretation of a "tanto point" found on true Japanese swords; a straight, linearly-sloped point has the advantage of being easy to grind, but it bears only a superficial similarity to traditional Japanese kissaki. Kissaki have a curved profile, and smooth three-dimensional curvature across their surface towards the edge - though they are bounded by a straight line called the yokote and have crisp definition at all their edges.

A hole is drilled into the tang (nakago), called a mekugi-ana. It is used to anchor the blade using a mekugi, a small bamboo pin that is inserted into another cavity in the tsuka and through the mekugi-ana, thus restricting the blade from slipping out. To remove the tsuka one removes the mekugi. The swordsmith's signature (mei) is placed on the nakago.

For a fabulous selection of authentic reproduction and fantasy swords and armour, please be sure and visit Reliks Swords and Collectibles

Katana Construction 

The forging of a Japanese blade typically took hours or days, and was considered a sacred art. As with many complex endeavors, rather than a single craftsman, several artists were involved. There was a smith to forge the rough shape, often a second smith (apprentice) to fold the metal, a specialist polisher, and even a specialist for the edge itself. Often, there were sheath, hilt, and tsuba specialists as well.

The most famous part of the manufacturing process was the folding of the steel. Japanese swords and other edged weapons are manufactured by the Chinese method of repeatedly heating, folding and hammering the metal. This practice became popular due to the use of highly impure metals, stemming from the low temperature yielded in the smelting at that time and place. The folding did several things:

It eliminated any bubbles in the metal.
It homogenized the metal, spreading the elements (such as carbon) evenly throughout - increasing the effective strength by decreasing the number of potential weak points.
It burned off many impurities, helping to overcome the poor quality of the raw Japanese steel.
It created layers, by continuously decarburizing the surface and bringing it into the blade's interior, which gives the swords their grain (for comparison see pattern welding); however, the belief that the layered structure provides enhanced mechanical properties of the steel is false, as layers act as weld points which can only serve to weaken the integrity of the blade.
Contrary to popular belief, continued folding will not create a "super-strong" blade; once impurities are burnt off and the carbon content homogenized, further folding offers little benefit and will gradually burn out the carbon, leading eventually to a softer steel less able to hold an edge. More than about a dozen folds are uncommon and swords never have more than two dozen folds. A blade folded 12 times will have more than 4,000 'layers' underneath the initial blade to begin with. Even before this point, more layers does not equal a better sword; an even and clean composition is obtained early in the folding process, and control of carbon content has a much greater effect on the blade's functionality. Thus, the best results were usually obtained at 8-10 folds.

For a fabulous selection of authentic reproduction and fantasy swords and armour, please be sure and visit Reliks Swords and Collectibles

Kendo: The Way of the Sword 

Kendo (%u5263%u9053), or "way of the sword", is the Japanese martial art of fencing. Kendo developed from traditional techniques of Japanese swordsmanship known as kenjutsu.
Kendo is a physically and mentally challenging activity that combines strong martial arts values with sporting-like physical elements.
Practitioners of kendo are called kend%u014Dka (%u5263%u9053%u5BB6), meaning "one who practices kendo", or kenshi (%u5263%u58EB), meaning "swordsman".

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Check Amazon out for any and all books related to Japanese swords.

Great Links to check out! 

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Lensmaster

GreenCar wrote

I know tatara which was watched in the japanese anime movie Mononoke Princess as the Takadono.But I can not prospect the strength of steel as soon as I see it.I think the action require high skillfull specialty.

Reply Posted January 19, 2009

Lensmaster

Dick wrote

I hear that raw steel of authentic japanese sword is only made by Hitachi Metals and Nittoho in Japan.Hitachi Metals is one of the famous high-tech steel company in Japan.But raw steel which is called "Tamahagane" is made by ancient steel making method.Tamahagane is made from iron sand and chacorl in tatara furnece which is located in yasugi izumo shimane prefecture.I want to see it once.

Reply Posted December 24, 2008

Lensmaster

halihalam

Quite interesting !I am giving 5 stars for your valuable lens and great information.Check out my the weldingquest blog

ReplyPosted November 27, 2008

thymes wrote...

I loved the lens why don't you check out these swords from arashi forge specifically designed for kenjustsu practitioners I think you'll love them:
http://theswordguys.ecrater.com/category.php?cid=604491

ReplyPosted September 26, 2008

Bacony wrote...

Really its a lovely lens to read and get collective informations of sword. Its a fabulous site. Your travell in to metal carports must gives you a sound knowledge of portable building too.

ReplyPosted April 16, 2008

Lensmaster

jon wrote

Very nice lense!

Tai Chi, Wudang, Marketing In China

Reply Posted April 09, 2008

 
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