@inproceedings{972a5d2e6aab4c4590d6e869f014e0ab,
title = "Tool design induced anisotropic flow behavior of hot extruded aluminum profiles",
abstract = "The hot extrusion process may lead to frequently observed textures in the profiles, like fiber structures in longitudinal direction. Aluminum profiles (AA6060) were extruded with different tool types (flat-face dies and modified porthole dies). Compression tests of cylindrical specimens, which were machined out of these profiles likewise in extrusion direction, were conducted to examine possible effects of the in-plane anisotropy in lateral direction. A hardness distribution over the cross section of the specimens was measured. It was found that dependent on tool design and profile geometry, the specimens developed preferred lateral flow directions during upsetting. Simulations of the upsetting test, with assigned Hill parameters to consider anisotropy of the material, showed, that this anisotropy, not the local hardness nonuniformity, is the main reason for the detected plastic flow properties.",
keywords = "Aluminum, Anisotropy, Cold forging, Flow behavior, Hot extrusion",
author = "Stefan Ossenkemper and Matthias Haase and Celal Soyarslan and Andreas J{\"a}ger and Tekkaya, {A. Erman}",
year = "2014",
doi = "10.4028/www.scientific.net/KEM.585.131",
language = "English",
isbn = "9783037858837",
series = "Key Engineering Materials",
publisher = "Trans Tech Publications Ltd",
pages = "131--138",
editor = "Tekkaya, {A. Erman} and Andreas J{\"a}ger",
booktitle = "Advances in Hot Metal Extrusion and Simulation of Light Alloys",
address = "Switzerland",
note = "International Conference on Extrusion and Benchmark, ICEB 2013 ; Conference date: 08-10-2013 Through 09-10-2013",
}