한국금형공학회:학술대회논문집

Korean Society of Die & Mold Engineering (한국금형공학회)
권호 표지

A study on the measurement of cavity pressure and computer simulation

성형조건에 따른 캐비티 내압 측정 및 컴퓨터 모사

  • Kim, D.W. (Department of Mold & Die Engineering, Seoul National University of Technology) ;
  • Kim, S.Y. (Department of Mold & Die Engineering, Seoul National University of Technology) ;
  • Shin, K.S. (Department of Mold & Die Engineering, Seoul National University of Technology) ;
  • Kim, D.W. (Department of Mold & Die Engineering, Seoul National University of Technology) ;
  • Kim, K.Y. (Department of Mold & Die Engineering, Seoul National University of Technology) ;
  • Lyu, M.Y. (Department of Mold & Die Engineering, Seoul National University of Technology)
  • 김동우 (서울산업대학교 정밀기계공학과) ;
  • 김수영 (서울산업대학교 정밀기계공학과) ;
  • 신광수 (서울산업대학교 정밀기계공학과) ;
  • 김도운 (서울산업대학교 정밀기계공학과) ;
  • 김기윤 (서울산업대학교 정밀기계공학과) ;
  • 류민영 (서울산업대학교 정밀기계공학과)
  • Published : 2008.06.24
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Abstract

Injection molding operation consists of filling, packing, and cooling phase. The highest pressure is involved during the packing phase among the operation phases. Cavity pressure depends upon velocity to pressure switchover time and magnitude of packing pressure. The cavity pressure is directly related to stress concentration in the cavity of mold. Thus the observation and control of cavity pressure is very important to prevent mold cracking. In this study, cavity pressures were observed for operational conditions using the commercial CAE software,Moldflow. Operational conditions were velocity to pressure switchover time and packing pressure. Cavity pressures were also measured directly during injection molding. Simulation and experimental results showed good agreement.

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