Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Effect of Material Flow Direction on the Replication Characteristics of the Ultrasonic Patterning Process

초음파 패턴성형시 유동방향 구속에 따른 미세패턴의 성형특성 고찰

  • 서영수 (서울과학기술대학교 NID 융합기술대학원) ;
  • 이기연 (서울과학기술대학교 NID 융합기술대학원) ;
  • 박근 (서울과학기술대학교 기계시스템디자인공학과)
  • Received : 2011.11.25
  • Accepted : 2012.01.06
  • Published : 2012.04.01
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Abstract

The present study addresses a direct patterning process on a plastic film using ultrasonic vibration energy. In this process, a tool horn containing micro-patterns is attached to an ultrasonic power supply, and is used with ultrasonic vibration to replicate micro-patterns on the surface of a plastic film. To improve the replication characteristics of the micro-patterns, the effect of the die shape of the ultrasonic patterning process was investigated with respect to the flow direction control. Finite element analyses were performed to predict the flow characteristics of the polymer with variations in die design parameters. Experiments were conducted using the optimally-designed die, from which it was possible to attain much improved pattern replication.

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References

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Cited by

  1. Replication Characteristics of Micro-Patterns according to the Vibration Transmission Direction in the Ultrasonic Imprinting Process vol.29, pp.11, 2012, https://doi.org/10.7736/KSPE.2012.29.11.1256
  2. Optimization of Ultrasonic Imprinting Using the Response Surface Method vol.22, pp.1, 2013, https://doi.org/10.5228/KSTP.2013.22.1.36