Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Study on the Experimental Identification of Surface Roughness Using Laser Scattering Image

레이저 산란 영상을 이용한 표면거칠기의 실험적 규명에 관한 연구

  • Hong, Yeon-Ki (Aeronautical&Mechanical Design Engineering Chungju National Univ) ;
  • Kim, Gyung-Bum (Aeronautical&Mechanical Design Engineering Chungju National Univ)
  • 홍연기 (충주대학교 항공 . 기계설계학과) ;
  • 김경범 (충주대학교 항공 . 기계설계학과)
  • Published : 2010.01.01
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Abstract

In this paper, surface roughness has been experimentally identified using laser scattering images. The parameters and optical deflected rays of laser scattering are investigated on laser scattering system, and then their optimum parameters on grinding surfaces are selected using design of experiment. The application of the optimum parameters results in featured laser scattering images, in which the mean of vertical scattering distributions is regarded as a feature. It is shown that the feature of laser scattering distributions is linearly increased according to grinding surface roughness and so the information can be used as important factor for the measurement and evaluation of various surface roughness. In the future, the performance of the proposed laser scattering method will be evaluated using AFM.

본 논문에서는 레이저 산란 영상을 이용하여 표면거칠기를 실험적으로 규명하였다. 우선, 레이저 산란 매개변수들과 표면형상에 따라 나타나는 광로의 편향성에 대해 고찰하였고, 이를 이용하여 레이저 산란 검사 시스템을 구성하였다. 연삭표면에서 획득한 레이저 산란 영상을 분석한 결과 영상에서 수직방향으로 나타나는 산란광 분포영역이 증가와 감소를 반복하는 특징이 나타났다. 이러한 차별적 특징을 표현하는 레이저 산란 영상을 획득하기 위해 실험계획법을 이용하여 레이저 산란변수들의 최적조건을 선정하였고, 연삭표면에서 표면거칠기가 증가함에 따라 레이저 산란 영상 내에서 수직방향으로 나타나는 산란광 분포 영역이 선형적으로 증가함을 알 수 있었다. 이러한 정보는 마이크로 표면의 평가 및 거칠기 측정 시 주요한 인자로 사용될 수 있을 것이다.

Keywords

References

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