A general term for cutting tools with a cutting edge at the end of a handle (called a shank), used as a blade on lathes, shaping machines, boring machines, planing machines, etc. Various types of cutting tools are manufactured depending on the shape, processing, and material of the workpiece. However, structurally, they can be broadly classified into (1) solid cutting tools (finished cutting tools, etc.) in which the cutting edge and shank are integrated and made of the same material, (2) tipped cutting tools in which a tip (a small piece of cutting edge) is brazed to the shank, and (3) crank cutting tools in which the tip is mechanically fixed to the shank. Because the cutting edge becomes hot, materials that are hard and wear-resistant even at high temperatures, such as carbon tool steel, alloy tool steel, high-speed steel, cemented carbide, ceramics, and diamond, are used. The term cutting tool is said to be a corruption of the Dutch word bietel.bytePlease see the "Bits" page. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
柄 (シャンクという) の先端に切刃をもった切削工具の総称で,旋盤,形削り盤,中ぐり盤,平削り盤などの刃物として用いる。工作物の形状,加工内容,材質などに応じて各種のバイトが製作されている。しかし構造的には,(1) 切刃部とシャンクが一体で,同一材料から成るむくバイト (完成バイトなど) ,(2) シャンクにチップ (切刃の小片) をろうづけしたつけ刃バイト,(3) シャンクにチップを機械的に固定したクランクバイトに大別できる。切刃部は高温になるので,材料には,高温でも硬度が高くて耐摩耗性に富む炭素工具鋼,合金工具鋼,高速度鋼,超硬合金,セラミック,ダイヤモンドなどが用いられる。なお,バイトという用語は,オランダ語のバイテル bietelから転訛したといわれている。
バイト「ビット」のページをご覧ください。 出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
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