Carbon steel Japanese style command knife Katana

Description

Crafting process
Forging: The cutlers heat the carbon steel billet and forge it repeatedly, and remove the impurities in the steel by constantly hammering and folding, so that the internal structure is more dense and uniform, forming a unique forging texture, and improving the strength and toughness of the blade.
Heat treatment: including quenching, tempering and other processes. Quenching makes the cutting edge obtain high hardness, and tempering eliminates the internal stress caused by quenching, improves the toughness of the tool, and makes the tool rigid and flexible. Some of them will also use the clay burning process, which coats the surface of the blade with special clay, retains the thickness of different parts as needed, and then heats and quenches to make the blade and back of the knife achieve different hardness and toughness effects.
Grinding: After multiple grinding processes, grinding stones with different mesh numbers are used to polish the surface of the blade smoothly from coarse grinding to fine grinding, making the blade sharper, and showing the forging texture and burnt edge pattern of the blade at the same time.
Design
Blade: Usually has a graceful curvature, the blade length is generally around 60 cm to 80 cm, it gradually narrows radially from the blade to the tip, the axial direction is thinning, the cross-section is diamond-shaped or similar, and the blade has a natural forged texture or burnt edge pattern.
Shank: Usually cylindrical or slightly oval in shape, generally around 20 cm to 30 cm in length, to accommodate one- or two-handed holding. Silk threads are wound to form a handle roll, and some shanks have metal fittings such as shanks at the end.
Scabbard: The shape is long, matching the blade, the surface may be delicately decorated, such as painting, engraving, etc., the sheath and sheath tail may have metal edging, and the scabbard will also be equipped with hanging rings or other accessories for easy wearing and carrying.
Performance characteristics:
Sharpness: After carbon steel is well forged and heat treated, the blade can be sharpened to a very sharp point, which can easily cut all kinds of items, and is a knife with high sharpness in cold weapons.
Toughness: Reasonable technology makes the tool have a certain toughness, can withstand a certain degree of bending and vibration, and is not easy to break or break when impacted by external forces.
Sense of balance: The design and production pay attention to the distribution of the center of gravity, and the center of gravity is generally close to the position of the knife, so that the knife is more balanced and stable when holding and using, and it is convenient for the user to exert strength and skill.
Cultural Significance and Use
Cultural significance: It has an important place in Japanese culture, is a symbol of the samurai class, embodies the spirit of bushido, and carries the history and cultural traditions of Japan.
Collection use: Because of its exquisite production technology, unique artistic value and historical and cultural significance, it is favored by collectors and has a certain investment collection value.
Decoration and display: It is often used for home decoration, office display or display in museums, exhibition halls and other places, adding a unique artistic atmosphere and cultural atmosphere to the space.