Department of Profile and Sheet Metal Forming

Head     Dr.-Ing. Rickmer Meya

The department primarily focuses on the development of new processes for the forming of profiles, tubes, and sheets as well as on the research of fundamentals for known forming processes and on the characterization of materials at elevated temperatures and strains (see picture).

This year, for example, active media-based profile forming and simultaneous kinematic bending in a continuous process using a graded temperature field was developed as a new process. In the field of fundamental research, the influence of forming-induced damage on the performance of bent components is revealed. Further investigations deal with temperature-assisted forming for improved process and product properties. Here, the focus is on controlling product properties in hot stamping and by the use of additively manufactured press hardening tools as well as profile bending with partial heating. Furthermore, a conventional rotary draw bending machine was prepared as a teleoperative test laboratory for the application in teaching (see figure).

The pictures show the rotary draw bending machine lab and the conduction of a hot tensile test.

Damage in Sheet Metal Bending of Lightweight Profiles

Funding: German Research Foundation (DFG)
Project: CRC/TRR 188 • Subproject A05
Contact: Dr.-Ing. Rickmer Meya

Bent parts made of high-strength steel materials are often produced by processes such as air or die bending.

Property-Controlled Multi-Stage Hot Sheet Metal Forming

Funding: German Research Foundation (DFG)
Project: 424334660 (SPP2183)
Contact: Juri Martschin M. Sc.

To enable a robust and versatile production, a method for the manufacturing of complex sheet metal components using a controlled, multi-stage, heatassisted forming process is being developed in this project.

Novel In-Plane Torsion Specimen for the Characterization of Damage and Hardening

Funding: German Research Foundation (DFG)
Project: 327544970
Contact: Dr.-Ing. Heinrich Traphöner
Status: Completed

One advantage of the in-plane torsion test is the efficient characterization of the kinematic hardening by evaluating the specimen at different radii.

Preparing the Standardization of the In-Plane Torsion Test

Funding: AiF/FOSTA
Project: 21137 N/P1320
Contact: Fabian Stiebert M. Sc.

The in-plane torsion test (IPTT) is a material characterization method which can determine flow curves under pure shearing up to high degrees of deformation.

Analysis of the Application Potential of Roll-Clad MnB-CrSteel Composites for Press Hardening

Funding: German Research Foundation (DFG)
Project: 444548865
Contact: Markus Stennei M. Sc.

Press hardening is used for the production of high-strength components which are, for example, installed in safety-relevant areas of the automobile.

Kinematic Profile Bending with Partial Cross-Sectional Heating

Funding: German Research Foundation (DFG)
Project: 408302329
Contact: Eike Hoffmann M. Sc.

In this project the suitability of partial heating of asymmetric profiles for the reduction of geometrical deviations in bending processes is examined.

Functionalization of Additively Manufactured Hot Stamping Tools Using Ball Burnishing

Funding: German Research Foundation (DFG)
Project: 417202720
Contact: Anna Komodromos M. Sc.

Hot stamping is used in sheet metal forming in order to use the increased forming capacity due to high temperatures and the increase in strength due to quenching.

Characterization of Fracture Resistance of Optimized Ferritic and Bainitic Steel Grades with Special Focus on Shear Loading

Funding: ReCIMP
Contact: Dr.-Ing. Rickmer Meya

Car seat components are often subjected to shear loads.

Media-Based Profile Shaping and Kinematic Bending in a Continuous Process Using a Graded Temperature Field

Funding: BMWi/ZIM-ZF
Project: ZF4101119US9
Contact: Mike Kamaliev M. Sc.

The production of thin-walled, load-adapted, and cuved profiles has a high potential for safety-relevant structures in automotive applications.