TY - CHAP

T1 - Composite extrusion of thin aluminum profiles with high reinforcing volume

AU - Pietzka, Daniel

AU - Ben Khalifa, Noomane

AU - Gerke, Stephanie

AU - Tekkaya, Erman

N1 - Conference code: 16

PY - 2013

Y1 - 2013

N2 - The combination of different materials within aluminum profiles offers significant potential for increasing the mechanical properties as well as the functionality [1]. Direct extrusion using special porthole dies which feed elements in terms of continuous wires through bridges into the aluminum base material flow, was studied to manufacture continuous reinforced profiles. To achieve an essential advantage of the technology for lightweight applications a high reinforcing volume of aluminum profiles is targeted. A comparatively high reinforcing volume can be reached either by a high number of reinforcing elements or through a reduction of the profile wall thickness. A high number of reinforcing elements leads to a small distance between the single elements in the profile cross-section. The paper will show the results of an experimental and numerical analysis carried out to determine the minimum distance between the reinforcing elements as well as the minimum allowable profile thickness. In the trials different arrangements of the elements in the profile cross-section and profile thicknesses were considered. Main parameters which have an influence on the process stability were analyzed and a process window for the manufacture of thin profiles with high reinforcing volume was deduced.

AB - The combination of different materials within aluminum profiles offers significant potential for increasing the mechanical properties as well as the functionality [1]. Direct extrusion using special porthole dies which feed elements in terms of continuous wires through bridges into the aluminum base material flow, was studied to manufacture continuous reinforced profiles. To achieve an essential advantage of the technology for lightweight applications a high reinforcing volume of aluminum profiles is targeted. A comparatively high reinforcing volume can be reached either by a high number of reinforcing elements or through a reduction of the profile wall thickness. A high number of reinforcing elements leads to a small distance between the single elements in the profile cross-section. The paper will show the results of an experimental and numerical analysis carried out to determine the minimum distance between the reinforcing elements as well as the minimum allowable profile thickness. In the trials different arrangements of the elements in the profile cross-section and profile thicknesses were considered. Main parameters which have an influence on the process stability were analyzed and a process window for the manufacture of thin profiles with high reinforcing volume was deduced.

KW - Aluminum

KW - Composite extrusion

KW - Lightweight structures

KW - Reinforced profiles

KW - Thin profiles

KW - Engineering

UR - http://www.scopus.com/inward/record.url?scp=84880543109&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/KEM.554-557.801

DO - 10.4028/www.scientific.net/KEM.554-557.801

M3 - Article in conference proceedings

AN - SCOPUS:84880543109

SN - 978-3-03785-719-9

VL - 554-557

T3 - Key Engineering Materials

SP - 801

EP - 808

BT - ESAFORM Conference on Material Forming, ESAFORM 2013

A2 - Alves de Sousa, Ricardo

A2 - Valente, Robertt

PB - Trans Tech Publications

T2 - 16th Conference on Material Forming - ESAFORM 2013

Y2 - 22 April 2013 through 24 April 2013

ER -