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Examination of tailored preforms produced by rotary swaging for subsequent hydroforming

Groche, Peter ; Vogler, Falko ; Wießner, Lennart :
Examination of tailored preforms produced by rotary swaging for subsequent hydroforming.
In: Production Engineering, Research and Development, 9 pp. 585-591.
[Artikel], (2015)

Kurzbeschreibung (Abstract)

Components with large cross section differences and complex geometries are not or only hardly produceable using conventional hydroforming processes at room temperature. In order to overcome this difficulty, the combination with other forming processes is promising. In the present paper a process chain consisting of rotary swaging followed by a subsequent hydroforming is examined. Local material data such as flow stress and forming limits of the preform are characterized. Kinematic hardening is found out to be the predominant material behavior. Hence, appropriate control curves for hydroforming were designed via locally assigned material data in numerical simulations. A complex geometry is thus formed with the presented process chain. It is shown that high forming ratios of preformed areas are achievable when compressive stress is superimposed by axial feeding.

Typ des Eintrags: Artikel
Erschienen: 2015
Autor(en): Groche, Peter ; Vogler, Falko ; Wießner, Lennart
Titel: Examination of tailored preforms produced by rotary swaging for subsequent hydroforming
Sprache: Englisch
Kurzbeschreibung (Abstract):

Components with large cross section differences and complex geometries are not or only hardly produceable using conventional hydroforming processes at room temperature. In order to overcome this difficulty, the combination with other forming processes is promising. In the present paper a process chain consisting of rotary swaging followed by a subsequent hydroforming is examined. Local material data such as flow stress and forming limits of the preform are characterized. Kinematic hardening is found out to be the predominant material behavior. Hence, appropriate control curves for hydroforming were designed via locally assigned material data in numerical simulations. A complex geometry is thus formed with the presented process chain. It is shown that high forming ratios of preformed areas are achievable when compressive stress is superimposed by axial feeding.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Production Engineering, Research and Development
Band: 9
Verlag: Springer-Verlag, Heidelberg
Freie Schlagworte: Material characterization, Rotary Swaging, Hydroforming, Multi-stage forming-process
Fachbereich(e)/-gebiet(e): Fachbereich Maschinenbau
Fachbereich Maschinenbau > Produktionstechnik und Umformmaschinen
Hinterlegungsdatum: 29 Jan 2016 13:20
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