Journal of the Korean Society of Manufacturing Technology Engineers (한국생산제조학회지)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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Effect of Molding Conditions on Demolding Force During Injection Molding of Parts with Micro-features

미세 패턴 사출 성형에서의 이형력에 대한 성형 조건의 영향 평가

  • Park, S.H. (Mechanical Engineering, Ulsan College) ;
  • Yoo, Y.E. (Korea Institute of Machinery & Materials) ;
  • Lee, W.I. (School of Mechanical and Aerospace Engineering, Seoul National University)
  • Received : 2013.12.05
  • Accepted : 2014.03.13
  • Published : 2014.04.15
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Abstract

Micro/nano-injection molding is one of the main processing techniques for polymer micro-fabrication. Most of the difficulties encountered in polymer micro-molding are caused by the demolding, rather than the filling of molds. Therefore, studying the demolding process is vitally important for manufacturing polymer replicas. The most important parameters are the thermal stress, friction and adhesion forces, and mechanical strength of the resist. In this research, we determinedthe effects of the processing conditions on the ejection force for cases involving two common thermoplastic polymers. The results showed that the processing conditions noticeably influenced the ejection force.

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References

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