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Sharpness refers to the ability of a blade, point, or cutting implement to cut through materials with minimal force, and can more specifically be defined as the capacity of a surface to initiate the cut. [1] Sharpness depends on factors such as the edge angle, edge width, and the fineness of the cutting edge, and is aided by material hardness.
Wazamono (Japanese: 業 （ わざ ） 物 （ もの ）) is a Japanese term that, in a literal sense, refers to an instrument that plays as it should; in the context of Japanese swords and sword collecting, wazamono denotes any sword with a sharp edge that has been tested to cut well, usually by professional sword appraisers via the art of tameshigiri (test cutting).
A blade's sharpness may be tested by checking if it "bites"—begins to cut by being drawn across an object without pressure. Specialized sticks exist to check bite, though one can also use a soft ballpoint pen, such as the common white Bic Stic. A thumbnail may be used [5] at the risk of a cut, or the edge of a sheet of paper. For kitchen ...
1060, used in swords or Axes. It has a carbon content of 0.55-0.65% [7] 1055, used in swords and machetes often heat-treated to a spring temper to reduce breakage. It has a carbon content of 0.48-0.55% [7] 1045, used in Axes. It has a carbon content of 0.45%; V-x series. V-1/V-2 Chrome is added to improve quenching performance.
For an extremely durable edge, a machete, chisel, drawknife or ax should be sharpened down to 30° – 40° providing even more ruggedness and longer lasting sharpness. The sharpness is measured at the microscopic level where the face of your implement may have an angle however at the convergence of the two angles is a joining point called the ...
This is a list of historical pre-modern weapons grouped according to their uses, with rough classes set aside for very similar weapons. Some weapons may fit more than one category (e.g. the spear may be used either as a polearm or as a projectile), and the earliest gunpowder weapons which fit within the period are also included.
Early swords were made of copper [citation needed], which bends easily. Bronze swords were stronger; by varying the amount of tin in the alloy, a smith could make various parts of the sword harder or tougher to suit the demands of combat service. The Roman gladius was an early example of swords forged from blooms of steel.
A drawing from the Catalog of the Royal Armoury of Madrid by the medievalist Achille Jubinal in the 19th century. The original specimen was destroyed by a fire in 1884. The maquahuitl (Classical Nahuatl: māccuahuitl, other orthographic variants include mākkwawitl and mācquahuitl; plural māccuahuimeh), [4] a type of macana, was a common weapon used by the Aztec military forces and other ...