Accurate welding line prediction in extrusion processes

Research output: Contributions to collected editions/worksArticle in conference proceedingsResearchpeer-review

Authors

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.

Original languageEnglish
Title of host publicationAdvances on hot extrusion and simulation of light alloys : selected, peer reviewed papers from the International Conference on Extrusion and Benchmark (ICEB)
EditorsA. Erman Tekkaya, Noomane Ben Khalifa
Number of pages9
Volume424
PublisherTrans Tech Publications
Publication date2010
Pages87-95
ISBN (print)0878493026, 9780878493029
DOIs
Publication statusPublished - 2010
Externally publishedYes
EventInternational Conference on Extrusion and Benchmark - 2009 - Dortmund, Germany
Duration: 16.09.200917.09.2009
https://www.researchgate.net/publication/287554354_ICEB_2009_Dortmund_International_conference_on_extrusion_and_3_rd_extrusion_Benchmark

    Research areas

  • Engineering - Extrusion , Finite element method , Seam weld , Welding line