The Katana sword is an iconic weapon that represents both strength and beauty. Its curved shape is perfect for both the slashing movements needed in mounted warfare and the thrusting techniques of on-foot combat. In fact, it is the only sword that combines these two fighting styles.
The most important part of a katana is its blade, and the way that it is crafted has been refined over 1,000 years to ensure its effectiveness in battle. It starts with a specialized steel called tamahagane, which is forged using iron sand and charcoal in a clay tatara furnace to create a steel that has different levels of carbon content, creating a hard, tough spring temper along the edge while the rest of the blade remains softer and more resilient.
Once the tamahagane is forged, it goes through the critical process of heat treatment known as yaki-ire. This involves applying a layer of clay slurry to the blade, with thicker layers on the body and spine and thinner ones along the edge. The sword is then heated and quickly quenched in water, which separates the two zones and allows for a hard, sharp edge. After the sword is tempered, it is sent to be polished. This is a highly complex process, and it can take up to nine steps to achieve the desired result.
When done correctly, a polished katana will display a beautiful shine that is almost as reflective as the mirror itself. This makes it an ideal sword for use in training, as well as a stunning weapon for display in the home or dojo. buy a katana here