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  2. San mai - Wikipedia

    en.wikipedia.org/wiki/San_Mai

    Technically, it is a style of lamination used for blade construction, commonly used on blades that have a symmetrical grind (i.e. the edges are ground down from both sides to expose the edge, which is composed of the inner core material. In Japan, traditionally the steel used for the outer layer is Gukunan-tetsu [4]

  3. Sword - Wikipedia

    en.wikipedia.org/wiki/Sword

    Dedicated cutting blades are wide and thin, and often have grooves known as fullers which lighten the blade at the cost of some of the blade's stiffness. The edges of a cutting sword are almost parallel. Blades oriented for the thrust have thicker blades, sometimes with a distinct midrib for increased stiffness, with a strong taper and an acute ...

  4. Sword making - Wikipedia

    en.wikipedia.org/wiki/Sword_making

    In some techniques, notably the traditional folded steel blades of China, Korea, and Japan, the billet might be drawn, folded and welded back on itself creating layers of steel of different types. In others longer bars or rods of steel and iron might be welded together, edge to edge, to create the basic billet placing the softer iron inside ...

  5. Blade - Wikipedia

    en.wikipedia.org/wiki/Blade

    The bare blade of a Japanese sword without the handle or hilt. A blade is the sharp, cutting portion of a tool, weapon, or machine, specifically designed to puncture, chop, slice, or scrape surfaces or materials. Blades are typically made from materials that are harder than those they are intended to cut.

  6. Katana - Wikipedia

    en.wikipedia.org/wiki/Katana

    The slurry causes only the blade's edge to be hardened and also causes the blade to curve due to the difference in densities of the micro-structures in the steel. [29] When steel with a carbon content of 0.7% is heated beyond 750 °C (1,380 °F), it enters the austenite phase.

  7. Cold saw - Wikipedia

    en.wikipedia.org/wiki/Cold_saw

    The first type of cold saw blade, solid HSS, may be made from either M2 tool steel or M35 tool steel, alloyed with additional cobalt.Solid HSS saw blades are heat treated and hardened to 64/65 HRC for ferrous cutting applications and 58/60 HRC for non-ferrous cutting applications.