Authors: Lüchinger, Marco
Velkavrh, Igor
Kern, Kerstin
Baumgartner, Michael
Klien, Stefan
Diem, Alexander
Schreiner, Michael
Tillmann, Wolfgang
Title: Development of a constitutive model for friction in bulk metal forming
Language (ISO): en
Abstract: This paper presents a systematic procedure for the development of a constitutive model of friction with focus on the application in bulk metal forming simulations. The empirically based friction model describes friction as a function of sliding distance and the most relevant friction influencing parameters. The latter were determined by means of designed experiments. An optimal friction model is obtained as a trade-off between model accuracy and complexity by using stepwise nonlinear regression and a modified version of the Akaike information criterion. Within this study, the procedure is applied to determine a friction model for tube drawing. However, the same approach can also be used for modeling friction of any other bulk metal forming process.
Subject Headings: Friction
Bulk metal forming
Mathematical modeling
Design of experiments
Stepwise regression
Akaike information criterion
Subject Headings (RSWK): Reibung
Mathematische Modellierung
Issue Date: 2018-04-28
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Appears in Collections:Lehrstuhl für Werkstofftechnologie

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