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Foto: Universität Paderborn

Dr.-Ing. Eugen Wiens

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Dr.-Ing. Eugen Wiens

Umformende und Spanende Fertigungstechnik

Oberingenieur - Akademischer Rat a. Z.

Sonderforschungsbereich Transregio 285

Mitglied - Akademischer Rat a. Z. - Teilprojekt C03

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+49 5251 60 3150
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+49 5251 60-5342
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2022


2021

Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming

E. Wiens, W. Homberg, B. Arian, K. Möhring, F. Walther, 2021



Forming of Parts with Locally Defined Mechanical and Ferromagnetic Properties by Flow-Forming

E. Wiens, W. Homberg, B. Arian, K. Möhring, F. Walther, in: Forming the Future, Springer International Publishing, 2021

DOI


2020

Some ideas for the further development of hydroforming process chains

E. Wiens, E. Djakow, W. Homberg, in: Nebu/Nehy 2020, 2020

Even though the spectrum of parts is expected to shift over the long term as a result of increasing e-mobility, there is still an extremely high demand for complex components made of high-strength materials which can only be produced by hydroforming technologies. The innovative combination of hydroforming processes with other forming processes, as well as the improvement of the processes themselves, offers considerable potential for improvement. A number of promising ways of improving the hydroforming process chain are therefore the subject of this contribution. The focus of the article is on possible approaches for combining (incremental) pre- and post-forming operations, which can permit considerable improvements in both quality and features at a reduced cost. Furthermore, a novel combination of quasi-static and high-speed forming processes is presented, leading to an improved overall forming process (with a high application potential) for the production of complex parts.


Joining with Versatile Friction-Spun Joint Connectors

T. Rostek, E. Wiens, W. Homberg, Procedia Manufacturing (2020), 47, pp. 395-399

DOI


2019

Forming analysis of tailored tubes with an internal contoured wall thickness and external axial ribs manufactured by internal flow-turning

E. Wiens, W. Homberg, in: PROCEEDINGS OF THE 22ND INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2019, 2019

DOI


2018

Internal Flow-Turning – extended manufacturing possibilities in tailored tube production

E. Wiens, W. Homberg, MATEC Web of Conferences (2018), 11002

DOI



2017

Walzen statt drehen

E. Wiens, Bänder Bleche Rohre (2017), bbr 2, pp. 59


Internal flow-turning – efficient manufacture of load-adapted tubes with a constant external diameter

E. Wiens, in: Proceedings of the International Conference on Steels in Cars and Trucks SCT 2017, 2017


2015

Internal Flow-Turning - An Innovative Technology for the Manufacture of Tailored Tubes

W. Homberg, T. Rostek, E. Wiens, in: Key Engineering Materials, Trans Tech Publications Ltd, 2015, pp. 65-70

<jats:p>In order to optimise the material utilisation and improve the lightweight design of automotive parts tailored hollow profiles are needed, especially as semi-finished parts for hydroforming. Internal Flow-Turning is an innovative incremental forming technology which enables the manufacture of tubes featuring a varying wall thickness and a constant outer diameter. These characteristics facilitate the material feed at hydroforming processes significantly. In addition, the spinning-related forming technology improves the mechanical material properties, shape and dimensional accuracy, and the surface quality of parts produced.</jats:p>


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