Numerical simulation of the extrusion of hollow profiles is a particularly challenging process due to the inherent flow patterns in this type of procedure. Aluminium must flow round the central part of the die and join again prior to exit the die. The quality of this welding line is highly affected by the mechanical conditions within the die, which depend crucially on geometry. In this paper we present a review of our work on the topic, where the Natural Element Method (NEM), a meshless technique, has been applied towards an efficient analysis of the conditions necessary to give a quality welding of the flows giving rise to the final geometry of the extrudate. The use of meshless methods is precisely the novel ingredient in our analysis, since it provides with an accurate description of the position of the flow front and the mechanical conditions (stress, strain, temperature) at the interface. Numerical results are also compared with experimental measures showing the impact of die geometry on the quality of the final design.
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ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis
July 2–4, 2012
Nantes, France
Conference Sponsors:
- International
ISBN:
978-0-7918-4484-7
PROCEEDINGS PAPER
Natural Element Simulation of Extrusion of Hollow Profiles
Iciar Alfaro,
Iciar Alfaro
Universidad de Zaragoza, Zaragoza, Spain
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Francesco Gagliardi,
Francesco Gagliardi
University of Calabria, Rende, CS, Italy
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Francesco Greco,
Francesco Greco
University of Calabria, Rende, CS, Italy
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Luigino Filice,
Luigino Filice
University of Calabria, Rende, CS, Italy
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E. Cueto
E. Cueto
Universidad de Zaragoza, Zaragoza, Spain
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Iciar Alfaro
Universidad de Zaragoza, Zaragoza, Spain
Francesco Gagliardi
University of Calabria, Rende, CS, Italy
Francesco Greco
University of Calabria, Rende, CS, Italy
Luigino Filice
University of Calabria, Rende, CS, Italy
E. Cueto
Universidad de Zaragoza, Zaragoza, Spain
Paper No:
ESDA2012-82759, pp. 503-508; 6 pages
Published Online:
August 12, 2013
Citation
Alfaro, I, Gagliardi, F, Greco, F, Filice, L, & Cueto, E. "Natural Element Simulation of Extrusion of Hollow Profiles." Proceedings of the ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. Volume 1: Advanced Computational Mechanics; Advanced Simulation-Based Engineering Sciences; Virtual and Augmented Reality; Applied Solid Mechanics and Material Processing; Dynamical Systems and Control. Nantes, France. July 2–4, 2012. pp. 503-508. ASME. https://doi.org/10.1115/ESDA2012-82759
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