A study on the prizm pattern replication in injection molding

사출 도광판의 프리즘 패턴 전사성에 관한 실험적 연구

  • 김창완 (서울산업대학교 금형설계학과) ;
  • 유영은 (한국기계연구원 나노공정 장비연구센터) ;
  • 김태훈 (충남대학교 메카트로닉스공학과) ;
  • 제태진 (한국기계연구원 나노공정 장비연구센터) ;
  • 최두선 (한국기계연구원 나노공정 장비연구센터)
  • Published : 2007.05.30

Abstract

We injection molded a wedge type of plate with micro prizm patterns on its surface and investigated the fidelity of replication of the micro pattern depending on the process parameter such as mold temperature, melt temperature, injection rate or packing pressure. The size of the size of the $90^{\circ}$ prizm pattern is $50{\mu}m$ and the size of the plate is about 300㎜${\times}$200㎜. The thicknesses are 2.6㎜. and 0.7mm at each edge of the wedge type of plate. The fidelity of the replication turned out quite different according to the process parameters and location of the patterns on the plate. We measured the cavity pressure and temperature in real-time during the molding to analyze the effect of the local melt pressure and temperature on the micro pattern replication.

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