The Proposal of Measuring Method of Machined Surface Roughness Using Transparent Replica

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  • YOKOTA Osamu
    Department of Mechanical Engineering, College of Engineering, Nihon University
  • 谷田部 幸太郎
    日本大学大学院工学研究科機械工学専攻
  • NAGAO Mitsuo
    Department of Mechanical Engineering, College of Engineering, Nihon University
  • 神馬 洋司
    日本大学工学部総合教育
  • SAITO Akinori
    Department of Mechanical Engineering, College of Engineering, Nihon University

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Other Title
  • 透明レプリカ法による加工表面の粗さ測定方法の提案

Abstract

In this study, the replica of the metal processing surface was produced using the transparent silicone. The new measuring method which examined the transmission image was proposed with a scattering of the spot light in the replica. The result was summarized in the following. It was able to be classified to four patterns of the transmission image from the replica reflection plane, that is to say, point pattern, circular pattern , elliptic pattern, diffractionpattern. It is possible that these patterns estimate the shape of the reflection plane, namely shape and processing method of the machined surface. The surface roughness by the diffraction was equal to the maximum height roughness by the tracer. In circular pattern and elliptic pattern, the empirical formula which showed the relationship between maximum height roughness and radius of gyration was obtained. In the point pattern, it was not possible to show surface roughness in the measuring range of this experiment.

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