소성∙가공 (Transactions of Materials Processing)

  • 제11권5호
  • /
  • Pages.414-422
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  • 2002
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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3차원 입체요소를 사용한 정밀 전자부품의 사출성형 해석

Numerical Analysis for Injection Molding of Precision Electronics Parts Using Three-Dimensional Solid Elements

  • 박근 (서울산업대학교 기계설계 자동화공학부, 정밀기계기술연구소) ;
  • 박제현 (삼성전기㈜ 생산기술연구소 금형팀) ;
  • 최상련 (에스알테크㈜)
  • 발행 : 2002.09.01
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초록

Most of numerical analyses for injection molding have been based on the Hele Shaw's approximation: two-dimensional flow analysis. In some cases, that approximation causes significant errors due to loss of geometrical information as well as simplification of the flow characteristics along the thickness direction. The present work covers numerical analyses of injection molding using three-dimensional solid elements. The accuracy of the analysis results has been verified through some numerical examples in comparison with the classical shell-based approach. The Proposed approach is then applied to predict product defects and to improve flow characteristics for a precision electronics part. In addition, design of experiment has been utilized in order to find the optimal process conditions for better product quality.

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참고문헌

  1. Hieber, C. A. and Shen, S. F., 1980, 'A finite element/ finite difference simulation of the injection molding filling process', J. Non-Newt. Fluid Mech. Vol. 7, pp. 1-32. https://doi.org/10.1016/0377-0257(80)85012-9
  2. Wang, V. W., Heiber, C. A., and Wang, K. K., 1987, 'C-F1ow: A CAE package with high-level interactive graphics', Appl, Comp. Aided Engng. In Injection Molding, pp, 230-246.
  3. Chiang, H. H., Hieber, C. A., and Wang, K. K., 1991, 'A unified simulation of the filling and post-filling stages in injection molding, Part I: Formulation ', Polym Eng. Sci. Vol. 31, pp. 116-124. https://doi.org/10.1002/pen.760310210
  4. Kennedy, P., 1993, Flow analysis reference manual, Moldflow Pty. Ltd.
  5. Pillai, K. M., Tucker III, C. L., and Phelan, F. R., 2000, 'Numerical simulation of injection/ compression liquid composite molding', Composites: Part A, Vol. 31, pp. 87-94. https://doi.org/10.1016/S1359-835X(99)00052-4
  6. Moldflow Co., 2000, MPI/Flow3D Training Manual: Release 2.0, Moldflow Pty, Ltd.
  7. Krottmaier, J., 1993, Optimizing engineering designs, McGraw-Hill, New York.
  8. Schmidt, S. R. and Launsby, R. G., 1997, Understanding industrial designed experiments, Air Academy Press, Colorado.
  9. 김홍석, 조명상, 손중식, 서태수, 김태웅, 2001, '박막요소를 이용한 스피커 그릴 일체형 맵 포켓의 사출성형 해석', 대한기계학회논문집 (A), 제25권 제8호, pp. 1294-1301.
  10. 김종범, 2001, 'CAE 모델링에 따른 유동 패턴 변화 - TV Ventilation Hole 형상 modeling', Moldflow Korea User Group Conference, Seoul, CD-ROM
  11. Park, K., Ahn, J. H., and Choi, S. R., 2200, 'Optimal design for injection molding process using design of experiments and finite element analysis', CAE and Related Innovations for Polymer Processing, IMECE 2000, Orlando, USA, pp. 63-74.
  12. Lu, X. and Khim, L. S., 2001, 'A statistical experimental study of the injection molding of optical lenses', J. Mat. Proc. Tech., Vol. 113, pp. 189-195. https://doi.org/10.1016/S0924-0136(01)00606-9