ProMi

Multi-functional high-performance profile systems in intrinsically manufactured fiber composite-metal mixed construction

Innovative manufacturing technologies for complex hollow profile structures made of fiber-thermoplastic composites were successfully advanced in the DFG transfer project "Multifunctional high-performance profile systems in intrinsically manufactured fiber composite-metal mixed construction". The Institute for Lightweight Design and Polymer Technology of the TUD Dresden University of Technology and the wbk Institute for Production Engineering of the Karlsruhe Institute of Technology (KIT) worked together on the further development of the technology for the production and intrinsic joining of curved hollow profiles made of high-temperature thermoplastics using the bladder-assisted integral molding process and the centrifugal process. The aim of the project was to adapt existing process and structure models to the requirements of the industry and to validate them on demonstrators such as sewer pipes and tension-compression struts. These application-oriented components can be subjected to impact or high tensile-compression dynamics, place tightness requirements on the additively manufactured load introduction elements, and are subject to aviation safety guidelines. The functional relationships of the processes under consideration have been optimized virtually and experimentally. To achieve the goals, a broad consortium along the entire value chain was required, which is why the application partners Boeing Deutschland GmbH with subcontractor herone GmbH, Diehl Aviation Gilching GmbH, Robert Hofmann GmbH and Teijin Carbon Europe GmbH supported the project.