Paper Title:
Numerical Material Flow Optimization of a Multi-Hole Extrusion Process
  Abstract

The decrease of the bearing length in the aluminum extrusion processes results in an increase of the material flow and offers, through this, the possibility for correction and optimization. This study presents a simulation-based optimization technique which uses this effect for optimizing the material flow in a direct multi-hole extrusion process. First the extrusion process was numerically calculated to simulate the production of three rectangular profiles with equal cross sections. Here, the die orifices were arranged at various distances to the die centre, which lead to different profile exit speeds. Based on the initial numerical calculation, an automated optimization of the bearing length with the adaptive-response-surface-method was set up to achieve uniform exit speeds for all profiles. Finally, an experimental verification carried out to show the influence of the optimized die design.

  Info
Periodical
Advanced Materials Research (Volumes 83-86)
Edited by
M. S. J. Hashmi, B. S. Yilbas and S. Naher
Pages
826-833
DOI
10.4028/www.scientific.net/AMR.83-86.826
Citation
T. Kloppenborg, A. Brosius, A. E. Tekkaya, "Numerical Material Flow Optimization of a Multi-Hole Extrusion Process", Advanced Materials Research, Vols. 83-86, pp. 826-833, 2010
Online since
December 2009
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Price
$32.00
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