Chiba, Japan
Chiba, Japan

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Chang L.-Y.,CoreTech System Moldex3D Co. | Chang Y.-J.,CoreTech System Moldex3D Co. | Hsu C.-H.,CoreTech System Moldex3D Co. | Tanaka H.,Saeilo Japan Inc. | Ohshima M.,Kyoto University
Annual Technical Conference - ANTEC, Conference Proceedings | Year: 2015

This study presents the recent development of three-dimensional prediction of microcellular foam injection molding with core-back operation by supercritical fluids (SCFs) nitrogen. In addition to the filling behavior in whole core-back process, the effects of nitrogen gas concentration, core-back distance, and dwell time on cell morphology are also numerically investigated. As a consequence, the final bubble size and bubble number density show good agreement with experimental cellular structure probed by scanning electron microscope. The validation of simulation results with experimental data proves the capability in 3D simulation of core-back foam injection molding, Moreover, it provides foam morphological insights and design guideline to economically manufacture products.

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