ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The purpose of this work is the modeling and simulation of the material behavior of aluminumalloys during extrusion processes. In particular, attention is focused here on aluminum alloysof the 6000 series (Al-Mg-Si) and 7000 series (Al-Zn-Mg). The material behavior of these alloysduring extrusion is governed mainly by dynamic recovery and static recrystallization during cooling.The current material model is based on the role of energy stored in the material during deformation,as it acts as the driving force for microstructural development. The concept of internal variables isused to describe state quantities such as dislocation density, average grain size and average grainorientation. The focus of the current paper is on some of the numerical aspects of the extrusionprocess simulation such as contact problems and adaptive mesh refinement which should be consideredin order to obtain more accurate and robust results
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.367.117.pdf
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