…Most cutting edges are straight, but if the hole has a keyway or oil groove, or is deep, a twisted edge is appropriate. Solid reamers, with both the cutting edge and shank made of high-speed steel, are common, but there are also adjustable reamers, which allow the cutting edge to be replaced or the diameter to be adjusted, and shell reamers, which have a hollow head that is fitted into the shank. Some reamers also use carbide alloy cutting edges. For deep holes, uneven pitch cutting edges may be used to prevent chatter vibration. … *Some of the terminology that refers to "adjustable reamer" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…切刃は直線刃のものが多いが,穴にキーみぞや油みぞがある場合,あるいは深い穴の場合はねじれ刃が適当である。刃部,シャンクとも高速度鋼で一体に作られたソリッドリーマーがふつうであるが,刃の取替えや直径の調節が可能なアジャスタブルリーマー,中空の頭部をシャンクにはめて使用するシェルリーマーなどもあり,また刃部に超硬合金を用いるものも利用されている。深い穴に対しては,びびり振動を防止するため不等ピッチの切刃とすることもある。… ※「アジャスタブルリーマー」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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