Pouring mould during centrifugal casting process

• Autorzy: Zagórski R. , Śleziona J.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper presents the model and the example simulations of the centrifugal casting of metal matrix composite reinforced with SiC, especially the distribution of the velocity of liquid composite for the initial stage of pouring the mould (up to 1s). Design/methodology/approach: Numerical simulations have been performed using the CFD program FLUENT 6.1.To simulate pouring the mould, axisymmetric swirl model has been applied. To model the air-matrix free surface (and also volume fraction of particular continuous phases) and dispersed phase, Volume of Fluid approach (VOF) and Discrete Phase Model (DPM) have been used, respectively. The turbulent flow of the fluid has been simulated by the standard k-ε model of turbulence. Findings: The results show that the behaviour of composite in pouring process depends strongly on the existence of reinforcement and process parameters and the initial stage of the casting can probably have an influence on the segregation and various final distribution of reinforcement particles. Research limitations/implications: The implemented simulational scheme can be used to study the behaviour of liquid composite during casting and the final simulational structure of composite should be verified experimentally. Practical implications: The simulation by CFD program (Fluent) can be treated as an attractive and useful tool for modelling centrifugal casting process of metal matrix composite reinforced by ceramic particles. The created model and procedures can be come the basis for more advanced researches. Originality/value: The development of CFD program and the computer technology allow to study even complicated problems. Hence, we have implemented the CFD program to simulate the centrifugal casing of composite.

Słowa kluczowe

EN

casting; centrifugal casting process; metal matrix composite; CFD simulations

PL

odlew; odlewanie odśrodkowe; kompozyty metalowe

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2007
• Tom: Vol. 28, nr 7
• Strony: 441--444
• Opis fizyczny: Bibliogr. 15 poz., il., wykr.

Twórcy

autor

Zagórski R.

autor

Śleziona J.

• Department of Electrotechnology, Faculty of Materials Science and Metallurgy, Silesian University of Technology, ul. Krasińskiego 8, 40-019, Katowice, Poland,

Bibliografia

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