한국소성가공학회:학술대회논문집 (Proceedings of the Korean Society for Technology of Plasticity Conference)
- 한국소성가공학회 2003년도 춘계학술대회논문집
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- Pages.474-480
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- 2003
사출성형 공정 중 물결 무늬에 대한 유한요소 해석
Finite Element Analysis for Wave-like Flow Marks in Injection Molding
- S. Y Kang (School of Mechanical And Aerospace Engineering) ;
- Lee, W. I. (School of Mechanical And Aerospace Engineering)
- 발행 : 2003.05.01
초록
The wavelike flow mark phenomenon is one of the surface defects that can arise during the injection stage of the injection molding process. We have performed a numerical analysis using a finite element method for the injection molding to verify the validity of “Go-over” hypothesis. Also, we have compared the results of numerical analysis with available experimental data. Numerical analysis results of the flow marks are qualitatively in good agreement with experimental data of reference, but are quantitatively deviated from experimental data in a consistent manner. A parametric study has been performed to examine the correlative effects of various injection molding processing parameters and material properties on the flow mark size.