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Benefits of stress superposition in combined bending-linear flow splitting process

Groche, Peter ; Taplick, Christoph ; Özel, Mahmut ; Mahajan, Pushkar ; Stahl, Simon :
Benefits of stress superposition in combined bending-linear flow splitting process.
[Online-Edition: http://link.springer.com/10.1007/s12289-016-1325-4]
In: International Journal of Material Forming S. 1-11. ISSN 1960-6206
[Artikel] , (2016)

Offizielle URL: http://link.springer.com/10.1007/s12289-016-1325-4

Kurzbeschreibung (Abstract)

Linear flow splitting is a multi-station sheet-bulk metal forming process which allows continuous production of bifurcated profiles without joining, lamination or external heating of sheet metal. This process induces high hydrostatic stresses in the forming zone which leads to an elevated formability of the workpiece material. The aim of this research is to bend linear flow split profiles in transverse direction in a continuous manner. This is achieved by combining the linear flow splitting process with a continuous bending process. An analytical and a numer- ical model are described in this paper which predict bending moments for different radii. Results from both models are vali- dated with experimental results. It is found that combining the linear flow splitting with a bending process leads to a severe reduction in the bending moments due to superposition of stress- es in the forming zone. The superposition maintains the cross sectional shape of the bent profiles. Keywords

Typ des Eintrags: Artikel
Erschienen: 2016
Autor(en): Groche, Peter ; Taplick, Christoph ; Özel, Mahmut ; Mahajan, Pushkar ; Stahl, Simon
Titel: Benefits of stress superposition in combined bending-linear flow splitting process
Sprache: Englisch
Kurzbeschreibung (Abstract):

Linear flow splitting is a multi-station sheet-bulk metal forming process which allows continuous production of bifurcated profiles without joining, lamination or external heating of sheet metal. This process induces high hydrostatic stresses in the forming zone which leads to an elevated formability of the workpiece material. The aim of this research is to bend linear flow split profiles in transverse direction in a continuous manner. This is achieved by combining the linear flow splitting process with a continuous bending process. An analytical and a numer- ical model are described in this paper which predict bending moments for different radii. Results from both models are vali- dated with experimental results. It is found that combining the linear flow splitting with a bending process leads to a severe reduction in the bending moments due to superposition of stress- es in the forming zone. The superposition maintains the cross sectional shape of the bent profiles. Keywords

Titel der Zeitschrift, Zeitung oder Schriftenreihe: International Journal of Material Forming
Freie Schlagworte: Linear flowsplitting, Finite element analysis, Bending, Springback
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau > Institut für Produktionstechnik und Umformmaschinen (PtU)
DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche > SFB 666: Integrale Blechbauweisen höherer Verzweigungsordnung
DFG-Sonderforschungsbereiche (inkl. Transregio) > Sonderforschungsbereiche
16 Fachbereich Maschinenbau
DFG-Sonderforschungsbereiche (inkl. Transregio)
Hinterlegungsdatum: 29 Jun 2017 06:04
DOI: 10.1007/s12289-016-1325-4
Offizielle URL: http://link.springer.com/10.1007/s12289-016-1325-4
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