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http://dx.doi.org/10.9725/kstle.2002.18.5.345

Numerical Study on The Injection-Compression Molding Characteristic of High Viscosity Plastic Fluids  

Park, Gyun-Myoung (Korea Institute of Insustrial Technology)
Kim, Chung-Kyun (Department of Mechanical & System Design Engineering, Honglk University)
Publication Information
Tribology and Lubricants / v.18, no.5, 2002 , pp. 345-350 More about this Journal
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.
Keywords
compression molding; fixed grid method; VOF equation; FEM;
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