Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Numerical Study on The Injection-Compression Molding Characteristic of High Viscosity Plastic Fluids

고점도 유동장이 사출-압축 성형에 미치는 영향

  • 박균명 (한국생산기술연구원) ;
  • 김청균 (홍익대학교 기계,시스템디자인 공학과)
  • Published : 2002.10.01
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Abstract

Recently, as the development of manufacturing technique on SMC(sheet molding compound), various numerical and experimental approaches to injection and compression molding have been investigated. Injection and compression molding, however, has so various cases with complicated boundary condition that it is difficult to analyze mold characteristics precisely. In addition, since a slight change in process variables can significantly change the resulting mold thickness, a proper design is important to compression molding process. Therefore, in this study, the effects of various parameters on compression molding process have been investigated using FEM(finite element method) to formulate the melt front advancement during the mold filling process. To verify the results of present analysis, they are compared with those of reference. The results show a strong effect of initial charge volume, injection time and pressure as a result of variations in the rectangular charge shape.

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References

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