Development of a Profile Bending Process with Compressive Stress Superposition by Rolling

Funding: LeitmarktAgentur.NRW
Project: EFRE-0400139
Contact: Juri Martschin M.Sc.
Status: Completed

When bending profiles made of high-strength steel, bending stresses of more than 1000 MPa may occur.

Freeform Bending of Aviation-Relevant Tubular Parts

Funding: BMWi/DLR
Project: 20W1514B
Contact: Dr.-Ing. Rickmer Meya
Status: Completed

The aim of the research project was the development and qualification of manufacturing technologies for the production of bent tubes with minimum setup work for use in the aviation industry.

Damage in Sheet Metal Bending of Lightweight Profiles

Funding: German Research Foundation (DFG)
Project: SFB/TRR188 • Subproject A05
Contact: Dr.-Ing. Rickmer Meya

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

Granular Media-Based Tube Press Hardening

Funding German Research Foundation (DFG)
Project TE 508/52-1 • SP 714/12-1 • BO 4174/2-
Contact Eike Hoffmann M. Sc. • Sigrid Hess M. Sc.
Status Completed

The process combination of press hardening and tube hydroforming enables the production of high-strength hollow profiles exhibiting high stiffness.

Kinematic Profile Bending with Partial Cross-Sectional Heating

Funding: Deutsche Forschungsgemeinschaft (DFG)
Project: TE 508/74-1
Contact: Eike Hoffmann M. Sc.

In this project, the suitability of tailoring the mechanical properties and the reduction of geometrical deviations through partially heat-treating profiles in bending processes is examined.

Method for Producing Bent Profiles with Small Bending Radii and Closed Contours

Funding: BMWi/ZIM-ZF
Project: ZF4101104US6
Contact: Johannes Gebhard M. Sc.
Status: Completed

Bending of CNC-stamped sheets into profiles is a flexible and economical possibility for the production of frame structures.

Evaluation of Global and Local Ductility of AHSS and Stainless Steels

Funding: ReCIMP
Contact: Dr.-Ing. Christian Löbbe

The ability of a metal to withstand uniformly distributed strains is termed as global formability and, conversely, the ability to resist fracture under highly localized strains defines its local formability (see Figure a).

Shear Cutting and Hardening of Gears in Multi-Stage Tools

Funding: ReCIMP
Contact: Dr.-Ing. Christian Löbbe

In automotive engineering there is a conflict between the lightweight design and the maintenance of crash safety.