Prediction of Deformation Field And Temperature Distribution in Extrusion of Composite AA6061-10%SiC(p)

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Goodarzi Hosseinabadi, Hossein | 2011

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 41329 (07)
University: Sharif University of Technology
Department: Material Science And Engineering
Advisor(s): Serajzadeh, Siamak
Abstract:
In this research, the extrusion of composite AA6061-SiC has been investigated and the temperature distribution field and energy required for the process has been predicted. In this regard, to predict the flow behavior of material, hot extrusion tests conformed at various ranges of temperatures and strain rates. Afterward, the finite element method coupled with the upper bound technique to calculate the temperature distribution and energy required during hot extrusion. This model has also used for wire drawing and cold extrusion processes. The present model is capable of considering various process parameters such as speed of extrusion, reduction and the initial billet/die temperature on the energy requirements and temperature distributions during the process. In order to verify the model, practical isothermal and non-isothermal extrusion tests developed and compared with the results predicted by the model which good agreement observed between them
Keywords:
Hot Extrusion ; Wire Drawing ; Finite Element Method ; Artificial Neural Network ; Upper Bound Method