Simulation on Inclusion Movement and its Remaining in Mold During Casting

• Published in: Imono Vol. 67; no. 1; pp. 9 - 15
• Main Authors: Maru, Tatsuhiko, Nomura, Hiroyuki, Wang, Chengchi, Terashima, Kazuhiko
• Format: Journal Article
• Language: Japanese
• Published: Tokyo Japan Foundry Engineering Society 25.01.1995; Nippon Imono Kyokai
• ISSN: 0021-4396; 2186-0335
• DOI: 10.11279/imono.67.1_9

It is necessary to avoid entrapment of air and inclusions during metal casting in order to prevent formation of casting defects. Large-size inclusions, in particular, yield serious problems concerning casting quality. To solve the problem of inclusion defect in the products, it is quite important to know movement and trajectory of inclusion from which information can be given on the countermeasure for inclusion entrapment. With the above point of view, this study dealt with the model experiments and the computer simulation on inclusion movement during melt filling in mold cavity. In the experiments, inclusion trajectory in the mold cavity was obtained under the various conditions of timing and location at the gate of inclusion inflow. The experimental results were explained reasonably by the model of fluid dynamics. Furthermore finally entrapped position of inclusions in castings was predicted by the model combined with solidification anlaysis. The present study affords a basic idea to CAE (Computer Aided Engineering) on inclusion-free casting production.