Mirror grinding finish

Japanese: 鏡面研削仕上げ - きょうめんけんさくしあげ
Mirror grinding finish

...Because the numerous abrasive grains on the surface of the grinding wheel perform minute cuts on the workpiece, it is possible to obtain a machining precision of the order of 1/1000 of a mm, and it is also possible to achieve a finished surface with a roughness of the order of 1/10,000 of a mm in terms of the height of the surface irregularities. In particular, the process of reducing the roughness of the finished surface to a mirror-like finish is sometimes called mirror grinding. In addition, during machining, grinding fluid is often used to remove chips and fallen abrasive grains and to cool the workpiece, and most grinding machines are equipped with a device for this purpose. ...

*Some of the terminology used to describe "mirror grinding finish" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…といし車の表面にある多数の砥粒(とりゆう)が工作物に微少な切削を施すため,1000分の1mmオーダーの加工精度を得ることができ,その仕上面を表面の凹凸の高さで1万分の1mmオーダーの粗さにすることも可能である。とくに仕上面の粗さを小さくして鏡のようにする加工のことを鏡面研削仕上げと呼ぶことがある。なお,加工の際には切りくずや脱落した砥粒を除去し,かつ工作物を冷却するため研削液がしばしば用いられ,そのための装置がたいていの研削盤に備え付けられている。…

※「鏡面研削仕上げ」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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