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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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초록· 키워드
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In this study, the solidification characteristics inside the AC7A casting material was analyzed using the numerical analysis method and was verified using the experimental method by the pre-heated temperature conditions of metal casting device. For the numerical analysis, "COMSOL Multiphysics", the commercial code based on the finite element analysis(FEA), was used in order to predict the thermal deformation of the AC7A casting material including temperature, displacement and stress distribution. Also, in order to verify the results calculated by the numerical analysis, the experiment for temperature measurement inside the AC7A casting material was performed using the K-type thermocouple under the same condition of numerical analysis method. In the numerical results, thermal deformation inside AC7A casting material was well-suited for manufacturing products when the pre-heated temperatures of the metal casting device was $250^{\circ}C$. When the results of the temperature distribution were experimentally measured and were compared with those of the numerical result, it appeared that there was some temperature difference because of the latent heat by phase change heat transfer. However, the result of cooling temperature and patterns were almost similar except for the latent heat interval. The solidification characteristics was closely related to the temperature difference between the surface and inside of the casting.
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참고문헌 (13)
참고문헌 신청
E.G. Yoh / 2003 / Analyses on the High Temperature Fatigue and Brittle Damage of the Casting Mould due to Thermal Stress / Proceedings of the KSAE 2003 Autumn Annual Meeting :1563~1568
Y.B. Kim / 2007 / Investigations of Thermal Characteristics of Aluminum Alloy Mold for Precision Casting of Automobile Tire Mold / Proceedings of the KSAE 2007 Spring Annual Meeting :1596~1600
L.D.J. Sully / 1976 / The Thermal Interfaces Between Casting and Chill Molds / Transactions of AFS 84:735
H.P. Wang / 1991 / An interactive parametric analysis tool for thin-walled investment casting, In Welding and advanced solidification procsss / TMS :595~602
Van Tol, R. / 1994 / CFD study of the mould filling of a horizontal thin wall aluminum casting / HTD-Vol. 284 / AMD-Vol. 182, Transport Phenomena in Solidification, ASME
Y.B. Kim / 2007 / Investigations of Thermal Characteristics of Aluminum Alloy Mold for Precision Casting of Automobile Tire Mold / Proceedings of the KSAE 2007 Spring Annual Meeting :1596~1600
L.D.J. Sully / 1976 / The Thermal Interfaces Between Casting and Chill Molds / Transactions of AFS 84:735
H.P. Wang / 1991 / An interactive parametric analysis tool for thin-walled investment casting, In Welding and advanced solidification procsss / TMS :595~602
Van Tol, R. / 1994 / CFD study of the mould filling of a horizontal thin wall aluminum casting / HTD-Vol. 284 / AMD-Vol. 182, Transport Phenomena in Solidification, ASME
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