Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)

The Korean Society for Composite Materials (한국복합재료학회)
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A Study on the Control Strategy to Minimize Voids in Resin Transfer Mold Filling Process

RTM 공정에서 기공 최소화를 위한 공정 제어에 관한 연구

  • 이도훈 (서울대학교 기계항공공학부 대학원) ;
  • 전영재 (서울대학교 기계항공공학부 대학원) ;
  • 이우일 (서울대학교 기계항공공학부) ;
  • 엄문광 (한국기계연구원 재료기술연구소 복합재료그룹) ;
  • 변준형 (한국기계연구원 재료기술연구소 복합재료그룹)
  • Published : 2004.04.01
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Abstract

In case of Resin Transfer Molding(RTM) process, 'race-track' effects and non-uniform fiber volume fraction may cause undesirable resin flow pattern and thus result in dry spots, which affect the mechanical properties of the finished parts. In this study, a real time RTM control strategy to prevent these unfavorable effects is proposed. The control strategy consists of two 'stages' depending on the extent the resin front has reached. Through numerical simulations and experiments, the validity of the proposed scheme is demonstrated. The results show that the proposed scheme is effective in reducing the void formation during RTM mold filling.

Keywords