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Design Optimization for Minimizing Warpage in Injection Molding Parts with Numerical Noise

수치적 노이즈가 존재하는 사출 성형품 휨의 최적설계

  • 박창현 (한양대학교 기계설계학과) ;
  • 김성룡 (LG전자 CTO 디지털 어플라이언스 연구소) ;
  • 최동훈 (한양대학교 기계공학부) ;
  • 표병기 ((주)VMTech 기술연구소)
  • Published : 2005.11.01

Abstract

In order to minimize warping deformation which is an essential factor in the failure of injection molding parts, this study proposes an optimization design method fer determining design variables of injection molding parts. First, using a commercial package program for injection molding analysis, namely, Computer Aided Plastics Application(CAPA), we investigate the effects of parameters of injection molding process. Next, an optimum design process is established by interfacing CAPA to PQRSM embedded in EMD10S, a design framework developed by the conte. of innovative Design Optimization Technology(iDOT). PQRSM is a very efficient sequential approximate optimization algorithm. Optimum design results demonstrate the effectiveness of the design method suggested in this study by showing that the results of the optimum design is better than those of the initial design. It is believed that the proposed methodology can be applied to other injection molding design applications.

Keywords

Injection Molding;Optimization;PQRSM;Warpage

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