Accurate welding line prediction in extrusion processes
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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Advances on hot extrusion and simulation of light alloys: selected, peer reviewed papers from the International Conference on Extrusion and Benchmark (ICEB). ed. / A. Erman Tekkaya; Noomane Ben Khalifa. Vol. 424 Trans Tech Publications, 2010. p. 87-95 (Key Engineering Materials; Vol. 424).
Research output: Contributions to collected editions/works › Article in conference proceedings › Research › peer-review
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RIS
TY - CHAP
T1 - Accurate welding line prediction in extrusion processes
AU - Kloppenborg, Thomas
AU - Ben Khalifa, N.
AU - Tekkaya, A. Erman
PY - 2010
Y1 - 2010
N2 - In contrast to conventional extrusion processes, where a lot of research is done on in the welding quality, in composite extrusion, research is investigated into the welding line positioning. As a result of the process principle, the reinforcing elements are embedded into the longitudinal welding line. Hence, an undefined material flow inside the welding chamber induces reinforcement deflection, which can lead to reduced mechanical properties, as momentum of inertia. Therefore and to reduce costly experimental investigations, a new method of an automated numerical welding line prediction was developed. The results form HyperXtrude finite element calculations are used for special particle tracing simulations to predict the welding line in the profile cross section accurately. The procedures of segmentation and characteristic extraction are presented to approximate the welding line by cubic spline functions. The method was fully programmed in the Java program language, and works well for all HyperXtrude process models consisting of tetrahedral elements.
AB - In contrast to conventional extrusion processes, where a lot of research is done on in the welding quality, in composite extrusion, research is investigated into the welding line positioning. As a result of the process principle, the reinforcing elements are embedded into the longitudinal welding line. Hence, an undefined material flow inside the welding chamber induces reinforcement deflection, which can lead to reduced mechanical properties, as momentum of inertia. Therefore and to reduce costly experimental investigations, a new method of an automated numerical welding line prediction was developed. The results form HyperXtrude finite element calculations are used for special particle tracing simulations to predict the welding line in the profile cross section accurately. The procedures of segmentation and characteristic extraction are presented to approximate the welding line by cubic spline functions. The method was fully programmed in the Java program language, and works well for all HyperXtrude process models consisting of tetrahedral elements.
KW - Engineering
KW - Extrusion
KW - Finite element method
KW - Seam weld
KW - Welding line
UR - http://www.scopus.com/inward/record.url?scp=75749112590&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/KEM.424.87
DO - 10.4028/www.scientific.net/KEM.424.87
M3 - Article in conference proceedings
AN - SCOPUS:75749112590
SN - 0878493026
SN - 9780878493029
VL - 424
T3 - Key Engineering Materials
SP - 87
EP - 95
BT - Advances on hot extrusion and simulation of light alloys
A2 - Tekkaya, A. Erman
A2 - Ben Khalifa, Noomane
PB - Trans Tech Publications
T2 - International Conference on Extrusion and Benchmark - 2009
Y2 - 16 September 2009 through 17 September 2009
ER -