Simulation of shrinkage cavity formation during solidification of binary alloy

• Autorzy: Skrzypczak T. , Węgrzyn-Skrzypczak E.
• Języki publikacji: EN

Abstrakty

EN

Presented paper is focused on numerical modeling of binary alloy solidification process with connection to shrinkage cavity formation phenomenon. Appropriate matching of cooling parameters during solidification process of the cast with raiser is essential to obtain suitable properties of the manufactured part. Localization, structure and depth of the shrinkage cavity is connected to these parameters. The raiser is removed after process, so defect localization in the top part of the manufactured element is of great importance. Mathematical model of solidification process is presented in the paper. The main focus is put on the algorithm of shrinkage cavity creation process. On the basis of mathematical model the numerical approach using finite element method is proposed. On the base of mathematical and numerical model computer program is made. It is able to perform simulation of the shrinkage cavity formation in 2D region. Shape and localization of shrinkage cavity obtained from simulation is compared to defect which was created during experiment.

Słowa kluczowe

EN

shrinkage cavity; solidification process; finite element method; numerical modelling

PL

jama skurczowa; krzepnięcie; metoda elementów skończonych; modelowanie numeryczne

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2010
• Tom: Vol. 10, iss. 1
• Strony: 147--152
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Skrzypczak T.

autor

Węgrzyn-Skrzypczak E.

• Institute of Mechanics and Machine Design, Technical University of Częstochowa, st. Dąbrowskiego 73, 42-200 Częstochowa, Poland,

Bibliografia

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• [3] M. C. Flemings, The solidification processing, Mc Graw-Hill, New York, 1974.
• [4] A. Gierek, T. Mikuszewski, Forming of primary structure of metals and alloys, Publishers of the Silesian University of Technology, Gliwice, 1998 (in Polish).
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• [7] R. Parkitny, T. Skrzypczak, Simulation of solidification of two component alloys with solute distribution, Archives of Foundry, Vol. 2, No. 4 (2002), 198-203 (in Polish).
• [8] L. Sowa, Numerical simulation of the shrinkage cavity within solidifying steel casting, Archives of Foundry, Vol. 2, No. 4 (2002), 245-250 (in Polish).
• [9] R. Parkitny, L. Sowa, Numerical Modelling of the shrinkage cavity within steel castings, Acta Metallurgica Slovaca, Vol. 8, No. 1 (2002), 250-254 (in Polish).
• [11] B. Mochnacki, S. J. Suchy, Numerical methods in computations of foundry processes, Polish Foundrymen's Technical Association, Kraków, 1995.
• [12] K. J. Bathe, Finite element procedures in engineering analysis, Prentice-Hall, 1982.
• [13] O. C. Zienkiewicz, The finite element method, Mc Graw-Hill, London, 1977.