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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 ...
The use of wood with rounded edges prevents any cutting injury when sparring but because wooden weapons typically are typically thicker bladed (compared to flat steel training swords like feders) while being of similar weight to steel weapons, they impact much harder than the thin blades of steel training swords (whose weight is concentrated at ...
The Chinese swords had edges made of crucible steel similar to the metal found in Damascus swords, which were welded to a back of soft iron, to give both a hard and strong cutting edge but keeping the rest of the sword soft to prevent breakage. These produced a very hard and visible patterned-edge with a very visible transition at the weld, due ...
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.