Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Investigation into the Fabrication of Micro-scale Winkles using Repetitive Contact-and-open Method

반복 접촉-분리 방식을 이용한 마이크로 표면주름 구조 제작

  • Kim, Seong-Jin (School of Mechanical Engineering, Pusan Nat'l Univ.) ;
  • Park, Sang-Hu (School of Mechanical Engineering, ERC/NSDM, Pusan Nat'l Univ.)
  • 김성진 (부산대학교 기계공학부 정밀가공시스템대학원) ;
  • 박상후 (부산대학교 기계공학부/정밀정형 및 금형가공연구센터)
  • Received : 2012.02.24
  • Accepted : 2012.05.14
  • Published : 2012.08.01
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Abstract

Wrinkling is a common phenomenon in nature and the shape of a wrinkle can be defined using characteristic dimensions such as pitch, length, amplitude, and density etc. Wrinkle structure can be utilized in various research fields, and especially it has special characteristics when it used in applications of heat transfer; a wrinkly surface has the effect to promote turbulent flow and increasing surface area. However, the generation of wrinkle structures in somewhat regular is not easy. Till now, there are some research works focused on realization of wrinkles in micro scale. However, most of the processes generally requires high precision equipments and high costs, and also there is a limitation to generate the wrinkles in a large area. In this study, we propose a novel method named as a RCO (repetitive contact-and-open) process to fabricate wrinkle structure with low cost and relative easy way. Using the RCO, we fabricated micro-corrugate structures successfully. From the experimental results, we found out the process parameters of RCO, and showed the possibility of RCO to be used in real applications.

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References

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