Manufacturing of Steel-reinforced Aluminum Products by Combining Hot Extrusion and Closed-Die Forging

authored by: Annika Foydl, Insa Pfeiffer, Matthias Kammler, Daniel Pietzka, Thorsten Matthias, Andreas Jäger, A. Erman Tekkaya, Bernd Arno Behrens
Abstract: Aluminum extrudates reinforced with steel elements represent an innovative material concept for lightweight structures. Investigations on the process chain of extrusion and subsequent die forging to produce steel-reinforced aluminum parts were carried out. For the investigation the aluminum alloys AA6060 and AA6082 were used as workpiece material. Regarding the extrusion step the position of reinforcement elements with different shapes and their adhesion to the matrix in discontinuously-reinforced, semi-finished aluminum profiles was in focus. Sometimes defects were formed near the reinforcement elements and the nature of such defects was characterized. For the investigations on the forging step extruded profiles reinforced with steel wires were used. Finite element analyses were carried out in order to predict the position of the wires in the forged parts depending on their initial position in the extrusions. Furthermore, the flow behavior of the wires inside the forging part was investigated.
Organisation(s): Institute of Metal Forming and Metal Forming Machines
External Organisation(s): TU Dortmund University
Type: Conference contribution
Pages: 481-486
No. of pages: 6
Publication date: 03.02.2012
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: General Materials Science, Mechanics of Materials, Mechanical Engineering
Electronic version(s): https://doi.org/10.4028/www.scientific.net/KEM.504-506.481 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@inproceedings{5771624f95544d9893b464fefcff7681,
title = "Manufacturing of Steel-reinforced Aluminum Products by Combining Hot Extrusion and Closed-Die Forging",
abstract = "Aluminum extrudates reinforced with steel elements represent an innovative material concept for lightweight structures. Investigations on the process chain of extrusion and subsequent die forging to produce steel-reinforced aluminum parts were carried out. For the investigation the aluminum alloys AA6060 and AA6082 were used as workpiece material. Regarding the extrusion step the position of reinforcement elements with different shapes and their adhesion to the matrix in discontinuously-reinforced, semi-finished aluminum profiles was in focus. Sometimes defects were formed near the reinforcement elements and the nature of such defects was characterized. For the investigations on the forging step extruded profiles reinforced with steel wires were used. Finite element analyses were carried out in order to predict the position of the wires in the forged parts depending on their initial position in the extrusions. Furthermore, the flow behavior of the wires inside the forging part was investigated.",
keywords = "Aluminum, Hot extrusion, Hot forging, Metal-matrix composites",
author = "Annika Foydl and Insa Pfeiffer and Matthias Kammler and Daniel Pietzka and Thorsten Matthias and Andreas J{\"a}ger and Tekkaya, {A. Erman} and Behrens, {Bernd Arno}",
year = "2012",
month = feb,
day = "3",
doi = "10.4028/www.scientific.net/KEM.504-506.481",
language = "English",
isbn = "9783037853665",
series = "Key Engineering Materials",
pages = "481--486",
booktitle = "Material Forming ESAFORM 2012",
note = "15th Conference of the European Scientific Association on Material Forming, ESAFORM 2012 ; Conference date: 14-03-2012 Through 16-03-2012",
}