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All About The Katana Sword And Other FAQs

From the battlefields of feudal Japan to the silver screens of this generation’s reenactment of epic warriors and wielders of this legendary weapon, this weapon is as alive in memory as it was in kind during its time. And now, replicas of the same, as well as preserved artefacts from that period of Japan’s narrative, have garnered a growing following of none other than the Katana Swords.

History Of The Katana

The same year the first Minikata Katana was forged is still being determined. But one thing is carved in stone, and it was meant to improve what was then one of the most popular and feared blades, the Samurai sword.

It’s said to have been around 734 A.D. that the curved design of the Katana was fashioned differently from its former predecessor, which was of a perpendicular-blade make. Some variations of these blades were double-edged and took their inspiration from Chinese swords.

But after the Japanese took it upon themselves to be liberated from any foreign government, they cut their ties with the Chinese and decided to devise their own weapons. Weapons that would be just as, if not more, formidable than all others.

Due to Japanese society being divided according to classes, more muscular, wealthier clans warred against each other over influence, power, and riches. They hired militant warriors to be their personal guards, the samurai.

Clans grew in number, and so did their need for more samurai to ensure their protection against enemy tribes. Since then, samurais have been feared and venerated for their fighting skills. And their swords were approached in the same way. 

The Renowned Swordsmith Himself: The Age Of Amakuni

Amakuni remade the samurai sword so that another blade would emerge as a warrior’s weapon. He did so in the Yamato Province and possibly during the Heian Period. According to legend, he became concerned about the samurai’s weak armaments that would often be damaged after being utilised in only a handful of battles (although this was still quite the accomplishment, as not many swords had the resilience to face competition, if at all).

When he saw that this had become something incessant, he decided to enhance the samurai sword and make it truly powerful. More robust than its predecessor. Deadlier in the hands of a skilled samurai. Thus, Amakuni created the Katana. 


The Katana’s Form

Translated in its literal translation, “Katana” means “a curved, one-sided blade”. And that’s precisely what this sword is. The master swordsmith forged a metal blade with its sharp end outward-facing. He shortened its length to 2.5 shaku, or close to that score. Its diversifications are somewhere between 23 and 29 inches. Some deem it the shorter version of a wazikazu as long as it falls within the 2-shaku length. And its weight is within the 750 to 1000-gram border.

The reason behind creating a significantly shorter blade is that Amakuni wanted it to strike even more lethal blades, as it’s best used in close combat. Its fast build and lightweight characteristics make it a precise cutting tool. Or when wielded in battle, wounding and ultimately lethally injuring the enemy.

Manufacturing The Katana

Slag is a glass-like remnant formed by separating metal from its raw ore source. It starts with portions of tamahagane that are pieced together with clay. After, it is speckled with ash. Clay and ash are prerequisites for the first part of the Katana-making process because they remove slag.

Heat is constantly applied to ensure that the pieces remain intact and bonded to each other. This heating method produces a metal block reshaped with a hammer. It’s then put under a repeated cycle of folding and flattening until its width is doubled or thickened. As this goes on, the carbon in the steel becomes equitably distributed throughout the piece, accounting for equal blade strength on every section of it.

A softer type of steel is added to the tamahagane block, which is now thickened and strengthened. It might sound counterintuitive, pouring a more delicate material to improve its durability. But this has to be done so that the steel doesn’t become vulnerable to breaking or shattering when exposed to intense dynamic force, friction, and load.

The block is pulled to its desired length several days into its manufacturing. This will even take another set of days because careful pulling is needed to guarantee that its weight is evenly spread out to each portion of it.

Next, overheating and oxidation are prevented by pouring soft clay on the elongated block. This will also allow it to harden naturally. In parallel to this step, specifics such as the yaki and the Shirazi are formed—the hard part and the softer, flexible part, consecutively.

The Hamon line usually reveals itself here, appearing as a wave-like pattern resulting from the heating and hardening processes. Once this occurs, the swordsmith will know that the procedure is about halfway through. This is immediately followed by quenching--- a heating technique wherein the temperature of the heat itself differs according to the types of metals. It’s said that this complicated method can only be executed by highly skilled and experienced swordsmiths.

Subsequently, it’s promptly cooled to intensify the level of hardness of the blade. Here is where crystal lattices permeate the martensite. Its final form will appear through a series of sharpening and polishing using stones that vary in granulation. Extra attention and care are given to this part of the process because it concerns what the swordsmith wants the blade to look like. Every chiselled angle and the flattened surface will manifest itself permanently. Hence, the master will complete this step cautiously and with painstaking meticulousness.

With engravings to customise the blade, and the addition of the tsuka (hilt), the Katana sword is, in the beautiful sense of the word, “perfect” and is ready to be given to its owner.

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