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Sensitivity analysis of a finite element model for the simulation of stainless steel tube extrusion
Dalarna University, School of Technology and Business Studies, Material Science. Sandvik Mat Technol, R&D Ctr, SE-81181 Sandviken.
2010 (English)In: Journal of Materials Processing Technology, ISSN 0924-0136, Vol. 210, no 10, 1386-1396 p.Article in journal (Refereed) Published
Abstract [en]

In this work, a sensitivity analysis has been performed on a finite element model of glass-lubricated extrusion of stainless steel tubes. Fifteen model parameters, including ram speed, billet and tool temperatures, friction coefficients and heat transfer coefficients, were considered. The aim of the study was to determine the parameters that are most important for the response of the extrusion force. The relationship between the model parameters and the responses was analyzed by a calculation of two different regression models: one linear polynomial model and one model that includes interaction terms. Additional simulations were then carried out to validate the regression models. The results show that the initial billet temperature is the factor that has the strongest impact on the extrusion force within the parameter ranges studied in this work. The goodness of prediction and goodness of fit are very good for both regression models.

Place, publisher, year, edition, pages
Elsevier , 2010. Vol. 210, no 10, 1386-1396 p.
Keyword [en]
Extrusion, Stainless steel, Finite element method, Sensitivity analysis, Design of experiments
National Category
Materials Engineering
Research subject
Stålformning och ytteknik
Identifiers
URN: urn:nbn:se:du-4899DOI: 10.1016/j.jmatprotec.2010.03.028ISI: 000279547000015OAI: oai:dalea.du.se:4899DiVA: diva2:520221
Available from: 2010-08-19 Created: 2010-08-19 Last updated: 2015-09-14Bibliographically approved

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • chicago-author-date
  • chicago-note-bibliography
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf