Modeling approach for the determination of material flow and welding conditions in porthole die extrusion with gas pocket formation
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Modeling approach for the determination of material flow and welding conditions in porthole die extrusion with gas pocket formation. / Schwane, M.; Gagliardi, F.; Jäger, A. et al.
The Current State-of-the-Art on Material Forming. ed. / Ricardo Alves de Sousa; Robertt Valente. Vol. 554-557 Scientific.Net , 2013. p. 787-793 (Key Engineering Materials; Vol. 554-557).Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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TY - CHAP
T1 - Modeling approach for the determination of material flow and welding conditions in porthole die extrusion with gas pocket formation
AU - Schwane, M.
AU - Gagliardi, F.
AU - Jäger, A.
AU - Ben Khalifa, Noomane
AU - Tekkaya, A. E.
N1 - Conference code: 16
PY - 2013
Y1 - 2013
N2 - The material flow in porthole dies is of crucial importance with regard to the seam weld quality in aluminum extrusion. Thus, experimental as well as numerical investigations on the effect of die geometry on the material flow were conducted. The experimental tests were performed on a 10 MN laboratory extrusion press. During the experimental trials, the extrusion ratio was varied by means of exchangeable die plates. Since the modular die allows removal of the aluminum in the welding chamber as well as in the feeders after the process, the material flow could be inspected in detail. The experimental results were used to improve the accuracy of FEA simulations, which were also conducted by commercial software. An attempt was made to improve the result quality of Eulerian FEA model regarding the simulation of an extrusion process with a gas pocket in the welding chamber. The influence of the modeling approach on the predicted material flow and on the contact pressure was analyzed and finally linked to the seam weld quality.
AB - The material flow in porthole dies is of crucial importance with regard to the seam weld quality in aluminum extrusion. Thus, experimental as well as numerical investigations on the effect of die geometry on the material flow were conducted. The experimental tests were performed on a 10 MN laboratory extrusion press. During the experimental trials, the extrusion ratio was varied by means of exchangeable die plates. Since the modular die allows removal of the aluminum in the welding chamber as well as in the feeders after the process, the material flow could be inspected in detail. The experimental results were used to improve the accuracy of FEA simulations, which were also conducted by commercial software. An attempt was made to improve the result quality of Eulerian FEA model regarding the simulation of an extrusion process with a gas pocket in the welding chamber. The influence of the modeling approach on the predicted material flow and on the contact pressure was analyzed and finally linked to the seam weld quality.
KW - Engineering
KW - Extrusion
KW - FEA
KW - Gas pocket
KW - Porthole die
KW - Seam weld
UR - http://www.scopus.com/inward/record.url?scp=84880524292&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.554-557.787
DO - 10.4028/www.scientific.net/KEM.554-557.787
M3 - Article in conference proceedings
AN - SCOPUS:84880524292
SN - 978-3-03785-719-9
VL - 554-557
T3 - Key Engineering Materials
SP - 787
EP - 793
BT - The Current State-of-the-Art on Material Forming
A2 - de Sousa, Ricardo Alves
A2 - Valente, Robertt
PB - Scientific.Net
T2 - 16th Conference on Material Forming - ESAFORM 2013
Y2 - 22 April 2013 through 24 April 2013
ER -