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Thyssen-Krupp names their steels using standard convention, i. e. removing .1 from w-Nr 1.4116. Under the DIN system, this steel is described as X50CrMoV15, with the X indicating stainless steel, the 50 referring to the carbon content in hundredths of a percent, and the 15 referring to the percentage of chromium rounded to the nearest whole number.
The steel is then forged into a single plate, and the pieces of cast-iron are piled on top, and the whole thing is forge welded into a single billet, which is called the age-kitae process. The billet is then elongated, cut, folded, and forge welded again. The steel can be folded transversely (from front to back), or longitudinally (from side to ...
When cutting a straw target that is standing vertically, the easiest cut is the downward diagonal. This is due to a combination of the angle of impact of the cut against the grain (approximately 30-50 degrees from the surface), the downward diagonal angle of the swing, and the ability to use many of the major muscle groups and rotation of the ...
Tamahagane. Tamahagane (玉鋼) is a type of steel made in the Japanese tradition. The word tama means 'precious', and the word hagane means 'steel'. [1] Tamahagane is used to make Japanese swords, daggers, knives, and other kinds of tools.
These handles are often heavier, but are smaller in volume and surface area than most Japanese handles. The scale materials are often synthetic or resin-cured wood and are non-porous. Chefs who prefer the feel of a Western handle enjoy a more handle-heavy balance and grip the handle closer to the blade. This allows for more weight in the cut.
Katana, showing the hamon as the outline of the yakiba. The nioi appears faintly as the bright line following the hamon; especially visible at the tip ( kissaki ). In swordsmithing , hamon ( 刃文 ) (from Japanese , literally "edge pattern") is a visible effect created on the blade by the hardening process.
Pattern welding dates to the first millennium BC, with Celtic, and later Germanic swords exhibiting the technique, [5] with the Romans describing the blade patternation. [6] [7] By the 2nd and 3rd century AD, the Celts commonly used pattern welding for decoration in addition to structural reasons.
Diagram of a cross section of a katana, showing the typical arrangement of the harder and softer zones. Differential hardening (also called differential quenching, selective quenching, selective hardening, or local hardening) is most commonly used in bladesmithing to increase the toughness of a blade while keeping very high hardness and strength at the edge.
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