Analysis of Material Flow in Screw Extrusion of Aluminum

Journal Article · Tue Jun 15 00:00:00 EDT 2010 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3457646· OSTI ID:21366802

Haugen, Bjoern; Oernskar, Magnus; Welo, Torgeir; Wideroee, Fredrik ^[1]

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1. Department of Engineering Design and Materials, NTNU (Norway)

Screw extrusion of aluminum is a new process for production of aluminum profiles. The commercial potential could be large. Little experimental and numerical work has been done with respect to this process.The material flow of hot aluminum in a screw extruder has been analyzed using finite element formulations for the non-Newtonian Navier-Stokes equations. Aluminum material properties are modeled using the Zener-Holloman material model. Effects of stick-slip conditions are investigated with respect to pressure build up and mixing quality of the extrusion process.The numerical results are compared with physical experiments using an experimental screw extruder.

• OSTI ID: 21366802
• Journal Information: AIP Conference Proceedings, Vol. 1252, Issue 1; Conference: NUMIFORM 2010: 10. international conference on numerical methods in industrial forming processes dedicated to Professor O. C. Zienkiewicz (1921-2009), Pohang (Korea, Republic of), 13-17 Jun 2010; Other Information: DOI: 10.1063/1.3457646; (c) 2010 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM
ALUMINIUM ALLOYS
EXTRUSION
FINITE ELEMENT METHOD
NAVIER-STOKES EQUATIONS
SLIP
ALLOYS
CALCULATION METHODS
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
FABRICATION
MATERIALS WORKING
MATHEMATICAL SOLUTIONS
METALS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS