Numerical analysis of the Temperature Distribution in Centrifugal Casting

Abstract

This paper entails the mathematical modelling of the conductive heat transfer in horizontal centrifugal casting. The model was then used to analyse the temperature distribution in centrifugal casting. The Finite Element Method was used to discretize and analyse the temperature distribution. Four quadratic element was used to represent the entire domain of the casting and mould region respectively. The result obtained shows the temperature distribution both in the liquid cast region and the mould region. The liquid cast was poured into the prepared mould at the temperature of 1500⁰C and the mould was preheated to a temperature of 250⁰C to prevent thermal shock. After about 20 secs when the liquid cast has been poured into the mould, the result obtained shows a decrease in temperature from 1388.7295⁰C at a distance of 4.5cm to 1032.8636⁰C at a distance of 6.5cm from the centre of the mould. Also in the mould region, after about 20 secs, the temperature drops from 755.8252⁰C at 6.5cm to 350.6205⁰C at 15.5cm from the centre of the mould. The maximum percentage error was 1.6627% and the minimum percentage error was 0.0069%. This comparison was made for the temperature distribution in the cast region and the mold region after about 20 secs when the molten metal has been poured into the mold cavity. This shows that the result obtained from this research is in agreement with the result obtained from finite difference method.

Keywords

• Centrifugal Casting,Finite Element Method,Heat Transfer,Discretization,Conduction

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