Finite element based determination and optimization of seam weld positions in porthole die extrusion of double hollow profile with asymmetric cross section

Publikation: Beiträge in SammelwerkenAufsätze in KonferenzbändenForschungbegutachtet

Authors

Finite elemente analysis (FEA) allows to reduce development time during the die design stage as well as costly extrusion trials with prototypes. Therefore, it is essential that FEA computation provides reliable results. Among other output quantities such as temperature, load, or die stress, the prediction of material flow is one of the most essential ones. Especially in porthole dies, the material flow can be very complex and thus the position of the seam welds in the profile may be uncertain. In this study the particle tracing method was utilized to determine and finally adjust the seam weld positions in a double hollow profile with varying wall thicknesses over the cross section. The seam weld positions resulting from the original die design were determined by Eulerian FEA computation in the first step. Subsequently, the seam weld positions were adjusted by changing the die geometry. The simulation results were verified by means of extrusion tests, which were conducted under industrial conditions. In addition, Lagrangian and Eulerian FEA was utilized to analyze the evolution of the seam weld positions by evaluation of material flow as well as pressure distribution during the transient initial stage and the steady-state stage of the extrusion process. It was demonstrated that steady state process simulation and the particle tracing method can be used for the prediction of seam weld positions in complex hollow cross sections.

OriginalspracheEnglisch
TitelAdvances in Hot Metal Extrusion and Simulation of Light Alloys
HerausgeberA. Erman Tekkaya, Andreas Jäger
Anzahl der Seiten8
Band585
VerlagTrans Tech Publications
Erscheinungsdatum2014
Seiten95-102
ISBN (Print)978-3-03785-883-7
ISBN (elektronisch)978-3-03826-264-0, 978-3-03795-582-6
DOIs
PublikationsstatusErschienen - 2014
Extern publiziertJa
VeranstaltungInternational Conference on Extrusion and Benchmark - ICEB 2013 - Dortmund, Deutschland
Dauer: 08.10.201309.10.2013

DOI

Zuletzt angesehen

Publikationen

  1. How can employment relations in global value networks be managed towards social responsibility?
  2. Reduction of capital tie up for assembly processes
  3. The Politics of (Non)Knowledge in the (Un)Making of Migration
  4. A comparison between private and public access rules to bottlenecks - experiences and expectations from telecommunication and energy
  5. Article 11 Formal Validity
  6. Toward a gecko-inspired, climbing soft robot
  7. Microstructure evolution of Mg-11Gd-4.5Y-1Nd-1.5Zn-0.5Zr (wt%) alloy during deformation and its effect on strengthening
  8. Structure and Organization of Product Development Projects
  9. Review of transit data sources
  10. Archives
  11. Development of a Questionnaire Assessing Discomfort – The Disco-Scale
  12. Great ape cognition is structured by stable cognitive abilities and predicted by developmental conditions
  13. IFIP WG 13.5 workshop on resilience, reliability, safety and human error in system development
  14. Narrative consistency across replays of pro-social interactive digital narratives
  15. Optimal control strategies for PMSM with a decoupling super twisting SMC and inductance estimation in the presence of saturation
  16. Whose Change is it, Anyway?
  17. Toward a lifespan metric of reading fluency
  18. Adaptor device for transmitting e.g. blood pressure data of human body from blood pressure measuring device of data communication system to e.g. personal computer, has controller for controlling transmission of data to communication module
  19. Discourse of ‘Self’ and ‘Other’ in Newspaper Editorials on Insecurity in Nigeria
  20. Belowground top-down and aboveground bottom-up effects structure multitrophic community relationships in a biodiverse forest
  21. Influence of ageing treatment on microstructure, mechanical and bio-corrosion properties of Mg-Dy alloys
  22. Residual stresses in continuously reinforced composite profiles with symmetric cross sections
  23. Building Scene and Cultural Memory in the Weser Hills.
  24. Developing pathways for energy storage in the UK using a coevolutionary framework
  25. Proceedings SMC 2016
  26. The efficiency of German public theaters: a stochastic frontier analysis approach
  27. An Adaptive Resonance Regulator Design for Motion Control of Intake Valves in Camless Engine Systems
  28. Supporting non-hierarchical supply chain networks in the electronics industry
  29. Report on the relative strengths and weaknesses of the United States in PISA 2012 mathematics

Presse / Medien

  1. Die Rechnung, bitte