TU Darmstadt / ULB / TUbiblio

Advanced Friction Model for Cold Forging Processes

Ludwig, Manuel ; Stahlmann, Jörg ; Groche, Peter :
Advanced Friction Model for Cold Forging Processes.
In: Metal Forming 2012, Krakow, Poland. Wiley-VCH Verlag GmbH & Co., Weinheim
[ Konferenzveröffentlichung] , (2012)

Kurzbeschreibung (Abstract)

To enhance the quality of finite-element-simulations the dependency of field variables significantly influencing friction behavior has to be taken into account. Therefore a new model was developed to optimize friction in the simulation of cold forging processes. The friction coefficient depends on contact normal stress and surface enlargement and accounts for the load dependent surface state. It was developed within experiments in the compression-sliding-test (CST). Due to surface evolutions the gradient of the friction coefficient was implemented in the FE-model. The surface parameter Sq describing the surface flattening during the process was additionally integrated as a field parameter in the FE-simulation. This paper describes the experimentally developed friction model and the implementation in FE-codes. The generality of the friction model is investigated by using implicit and explicit calculation schemes.

Typ des Eintrags: Konferenzveröffentlichung
Erschienen: 2012
Autor(en): Ludwig, Manuel ; Stahlmann, Jörg ; Groche, Peter
Titel: Advanced Friction Model for Cold Forging Processes
Sprache: Englisch
Kurzbeschreibung (Abstract):

To enhance the quality of finite-element-simulations the dependency of field variables significantly influencing friction behavior has to be taken into account. Therefore a new model was developed to optimize friction in the simulation of cold forging processes. The friction coefficient depends on contact normal stress and surface enlargement and accounts for the load dependent surface state. It was developed within experiments in the compression-sliding-test (CST). Due to surface evolutions the gradient of the friction coefficient was implemented in the FE-model. The surface parameter Sq describing the surface flattening during the process was additionally integrated as a field parameter in the FE-simulation. This paper describes the experimentally developed friction model and the implementation in FE-codes. The generality of the friction model is investigated by using implicit and explicit calculation schemes.

Verlag: Wiley-VCH Verlag GmbH & Co., Weinheim
Freie Schlagworte: Cold Forging, Friction model, FE-simulation
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Institut für Produktionstechnik und Umformmaschinen (PtU)
Veranstaltungstitel: Metal Forming 2012
Veranstaltungsort: Krakow, Poland
Hinterlegungsdatum: 01 Nov 2012 12:09
Export:

Optionen (nur für Redakteure)

Eintrag anzeigen Eintrag anzeigen