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Location & approach

By car

From highway “A1”

At intersection “Dortmund/Unna” change to highway “A44” in the direction of Dortmund, which becomes the B1. Take the exit “Dortmund-Dorstfeld”, in the direction of “Universität”. Turn right onto “Planetenfeldstraße”, after 850 meters turn left onto “Otto-Hahn-Straße”. After 1 km turn right onto “Marie-Curie-Allee”, after 550 meters keep slightly right to stay on “Baroper Straße”.

From highway “A45”

Take the exit “Dortmund-Eichlinghofen”, in the direction of “Universität”. Turn right onto “Stockumer Straße”, after 800 meters turn left onto “Baroper Straße”.

Please use parking lot entrances 40 or 41 for access to the “Maschinenbau III” building or entrance 42 for access to the Experimental Hall.

By bus and train

Arrival with DB to Dortmund or Bochum central station.
From Dortmund central station take the interurban train line S1 in the direction of Düsseldorf and get off at the stop “Dortmund Universität S”.
From Bochum central station with the interurban train line S1 in the direction of Dortmund and get off at the stop “Dortmund Universität S”
From the interurban stop “Dortmund Universität S”, take the elevated railway (“H-Bahn” stop “Universität S”) to the stop “Campus Süd”.

By plane

From Dortmund Airport

Take a cab to the TU Dortmund University, South Campus (“Campus Süd”) or take the AirportExpress in 20 min. to Dortmund central station. From there take the interurban train line S1 line in the direction of Düsseldorf to the stop “Dortmund Universität S” and from there the elevated railway (“H-Bahn”) to “Campus Süd”.

From Düsseldorf Airport

Take the interurban train line S1 in the direction of Dortmund and get off at the stop “Dortmund Universität S”. From here, take the elevated railway (“H-Bahn”) in the direction of “Campus Süd”.

Plan of site & interactive map

The facilities of TU Dortmund University are spread over two campuses, the larger Campus North and the smaller Campus South. Additionally, some areas of the university are located in the adjacent "Technologiepark".

> Go to interactive map

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Calendar

Cafeteria menus

To overview

Location & approach

By car

From highway “A1”

At intersection “Dortmund/Unna” change to highway “A44” in the direction of Dortmund, which becomes the B1. Take the exit “Dortmund-Dorstfeld”, in the direction of “Universität”. Turn right onto “Planetenfeldstraße”, after 850 meters turn left onto “Otto-Hahn-Straße”. After 1 km turn right onto “Marie-Curie-Allee”, after 550 meters keep slightly right to stay on “Baroper Straße”.

From highway “A45”

Take the exit “Dortmund-Eichlinghofen”, in the direction of “Universität”. Turn right onto “Stockumer Straße”, after 800 meters turn left onto “Baroper Straße”.

Please use parking lot entrances 40 or 41 for access to the “Maschinenbau III” building or entrance 42 for access to the Experimental Hall.

By bus and train

Arrival with DB to Dortmund or Bochum central station.
From Dortmund central station take the interurban train line S1 in the direction of Düsseldorf and get off at the stop “Dortmund Universität S”.
From Bochum central station with the interurban train line S1 in the direction of Dortmund and get off at the stop “Dortmund Universität S”
From the interurban stop “Dortmund Universität S”, take the elevated railway (“H-Bahn” stop “Universität S”) to the stop “Campus Süd”.

By plane

From Dortmund Airport

Take a cab to the TU Dortmund University, South Campus (“Campus Süd”) or take the AirportExpress in 20 min. to Dortmund central station. From there take the interurban train line S1 line in the direction of Düsseldorf to the stop “Dortmund Universität S” and from there the elevated railway (“H-Bahn”) to “Campus Süd”.

From Düsseldorf Airport

Take the interurban train line S1 in the direction of Dortmund and get off at the stop “Dortmund Universität S”. From here, take the elevated railway (“H-Bahn”) in the direction of “Campus Süd”.

Plan of site & interactive map

The facilities of TU Dortmund University are spread over two campuses, the larger Campus North and the smaller Campus South. Additionally, some areas of the university are located in the adjacent "Technologiepark".

> Go to interactive map

ServicePortal UniMail

Development of a Model to Predict Geometry Changes in Spring Manufacturing Based on Plasticity Theory Considering Heat Treatment

12/01/2020 -

in

Profil- und Blechumformung
Umformtechnische Grundlagenforschung
Materialcharakterisierung
Industrienahe Forschung

a) Process chain for the production of compression springs, b) Residual stresses in the wire cross section

Funding	AiF / IGF
Project	IGF 21490 N
Contact	Philipp Rethmann M. Sc.

Helical compression springs are manufactured in a process chain consisting of coiling, heat treatment, and pre-setting (see Figure a). Residual stresses are generated during the forming of the spring wire in the coiling machine (see Figure b). A thermally induced reduction of the yield stress during the subsequent heat treatment ensures a partial reduction of these residual stresses and a change in the spring dimensions. In the final step of pre-setting, the spring is subjected to plastic loading so that the length decreases and torsional residual stresses are introduced. The material properties of the spring wires, which are determined close to the process by tensile and torsion tests, have a major influence on the residual stresses and the resulting changes in shape. On the basis of experimental and numerical investigations of the sub-processes, a (semi-) analytical process model is developed by which the description of the geometry changes is possible. The model can, thus, be used to support the setup process of automatic spring coiling machines.