回転中心測定による定盤面の平たんさの検査法

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書誌事項

タイトル別名
  • Flatness Inspection Method of Surface Plates by Measuring Pivoting Center
  • カイテン チュウシン ソクテイ ニ ヨル ジョウバンメン ノ ヘイタン サ ノ ケンサホウ

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説明

When a completely polished surface plate is placed face down on the completely leveled plane and a slight force is applied at a corner point of it in a direction parallel to the side continuous thereto, the theoretical pivoting center of the surface plate is unique to a given shape thereof. The present method proposes to judge the flatness of a surface plate by a deviation between its theoretical pivoting center and an actual measurement. The theoretical pivoting center was calculated for surface plates of various shapes for this study. In the experiment an appropriate amount of grease was sandwiched between a surface plate and the level plate to create as completely flat planes as possible. In this condition the pivoting centers of surface plates nearly coincided with the calculated points. In the case of semi-polished surface plates, approximate wavy shapes of surface could be predicted from measurements of their pivoting points.

収録刊行物

  • 精密機械

    精密機械 39 (465), 1036-1041, 1973

    公益社団法人 精密工学会

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