한국기계가공학회지 (Journal of the Korean Society of Manufacturing Process Engineers)

  • 제14권6호
  • /
  • Pages.136-141
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  • 2015
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  • 1598-6721(pISSN)
  • /
  • 2288-0771(eISSN)
한국기계가공학회 (The Korean Society of Manufacturing Process Engineers)
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펄스레이저에 의한 NAK80 금형강 표면연마의 해석적 연구

Analytic Study on Pulsed-Laser Polishing on Surface of NAK80 Die Steel

  • 김관우 (충북대학교 기계공학부) ;
  • 김승환 (충북대학교 대학원 기계공학과) ;
  • 조해용 (충북대학교 기계공학부)
  • Kim, Kwan-Woo (School of Mechanical Engineering, Chungbuk National University) ;
  • Kim, Seung-Hwan (Graduate School of Mechanical Engineering, Chungbuk National University) ;
  • Cho, Hae-Yong (School of Mechanical Engineering, Chungbuk National University)
  • 투고 : 2015.12.05
  • 심사 : 2015.12.11
  • 발행 : 2015.12.31
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초록

Laser surface polishing is a polishing method for improving surface roughness using an integrated laser beam. Using a laser for surface polishing can improve the surface condition without physical contact or chemical action. Laser polishing has mainly been used to polish the surface of diamond or optical articles, such as lenses and glasses. Recently, diverse studies on laser polishing for metals have been conducted. The analytic study of laser surface polishing has been conducted with experimental trials for comparison, so that the proper conditions for laser polishing can be recommended. In this study, laser surface polishing was simulated in order to predict the heat-affected zone on the die steel depending on the power of the pulsed laser. The simulated results were verified by comparing them to those of the experimental trials. Through this study, therefore, the application of FEM to the selection of appropriate laser conditions could be possible.

키워드

참고문헌

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  3. Shin, D. S., Lee, J. H., Kim, Y. P., and Park, J. K., "Latest Trend of Laser Selective Polishing of Molds", Proc. KSMTE Autumn Conf., pp. 222, 2011.
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  7. Lee, J. H., Oh, J. Y., Park, S. H. and Shin, B. S.,"Computational Analysis of 355 nm UV Laser Single-Pulsed Machining of Copper Material Considering the Strain Rate Effect", J. Korean Soc. Manuf. Process Eng., Vol. 9, No. 3, pp 56-61, 2010.
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