Paper Titles
Constitutive Models for AZ31 Magnesium Alloys
p.87
Insights to Extrusion from Finite Element Modeling
p.95
Study on Thixo-Extrusion of Semi-Solid Wrought Magnesium Alloy
p.103
Microstructure Prediction of Hot-Deformed Aluminium Alloys
p.107
Application of Adaptive Mesh and ALE Method in Simulation of Extrusion of Aluminum Alloys
p.117
Seam Welds Modeling and Mechanical Properties Prediction in the Extrusion of AA6082 Alloy
p.125
A Laboratory Scale Equipment to Relieve Force and Pressure in Cold Extrusion of Lead Hollow Components
p.137
Analysis of Metal Flow through a Porthole Die to Produce a Rectangular Hollow Profile with Longitudinal Weld Seams
p.145
Simulation-Based Design of Ram Speed Profile for Isothermal Extrusion
p.153

Application of Adaptive Mesh and ALE Method in Simulation of Extrusion of Aluminum Alloys

Article Preview

Abstract:

The purpose of this work is the modeling and simulation of the material behavior of aluminum alloys during extrusion processes. In particular, attention is focused here on aluminum alloys of the 6000 series (Al-Mg-Si) and 7000 series (Al-Zn-Mg). The material behavior of these alloys during 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 is used to describe state quantities such as dislocation density, average grain size and average grain orientation. The focus of the current paper is on some of the numerical aspects of the extrusion process simulation such as contact problems and adaptive mesh refinement which should be considered in order to obtain more accurate and robust results.

You might also be interested in these eBooks
Advances on Extrusion Technology and Simulation of Light Alloys View Preview

Info:

Periodical:

Key Engineering Materials (Volume 367)

Pages:

117-123

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.367.117

Citation:

Cite this paper

Online since:

February 2008

Authors:

T. Kayser, Farhad Parvizian, C. Hortig, Bob Svendsen

Keywords:

Adaptive Mesh, Aluminum (Al), Extrusion, Microstructure, Simulation

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2008 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] M. Bauser, G. Sauer and K. Siegert: Strangpressen, Aluminium-Verlag, Düsseldorf, 2nd Edition, (2001).

Google Scholar

[2] H. -J. Bargel and G. Schulze: Werkstoffkunde, Springer-Verlag, Berlin, 7th Edition, (2000).

Google Scholar

[3] Saiyi Li , Olaf Engler and Paul Van Houtte: Plastic anisotropy and texture evolution during tensile testing of extruded aluminium profiles, Modelling Simul. Mater. Sci. Eng. 13, (2005).

DOI: 10.1088/0965-0393/13/5/011

Google Scholar

[4] C. M. Sellars and Q. Zhu: Microstructural modelling of aluminium alloys during thermomechanical processing, Materials Science and Engineering A 280, no. 1, (2000).

DOI: 10.1016/s0921-5093(99)00648-6

Google Scholar

[5] T. Furu, H. R. Shercliff, G. J. Baxter, and C. M. Sellars. The influence of transient deformation conditions on recrystallization during thermomechanical processing of an Al-1% Mg alloy. Acta Materialia 47, (1999), pp.2377-2389.

DOI: 10.1016/s1359-6454(99)00113-5

Google Scholar

[6] T. Sheppard: Prediction of structure during shaped extrusion and subsequent static recrystallisation during the solution soaking operation, Journal of Materials Processing Technology, (2006).

DOI: 10.1016/j.jmatprotec.2006.04.099

Google Scholar

[7] G. J. Baxter, T. Furu, Q. Zhu, J. A. Whiteman and C. M. Sellars: The influence of transient strain rate deformation conditions on the deformed microstructure of aluminium alloy Al-1% Mg. Acta Metallurgica, 47, (1999), pp.2367-2376.

DOI: 10.1016/s1359-6454(99)00112-3

Google Scholar