Page 38 - ILK Research Report 2020
P. 38

Multifunctional Interfaces FRP

               Development of multifunctional interfaces for joining FRP with metals
               using established joining technologies



               Multi-material design with fibre reinforced plastic (FRP) and metals offers a high   Period
               potential for resource- and cost-efficient lightweight constructions. However,   01.10.2019 – 31.03.2022
               the availability of suitable joining technologies often obstructs the use of FRP
               in series production. In addition, despite the increasing diversity of materials,   Project Director
               industry demands to limit the number of different joining methods.  Prof. Dr.-Ing. habil. Maik Gude

               Together with the Laboratory for Materials and Joining Technology (LWF) at the   Contact Person
               University of Paderborn, ILK scientists are developing a new pre-competitive   Juliane Troschitz
               technology for FRP/metal joints based on established spot joining processes   Dr.-Ing. Robert Kupfer
               such as resistance spot welding or clinching. For this purpose, a metallic insert
               is embedded in a thermoplastic FRP structure during part manufacturing as a   Funding
               multifunctional interface. The technology is based on the concept of moulding   •  Federal Ministry for Economic Affairs
               holes by a pin and simultaneously placing the metallic insert in the moulded   and Energy (BMWi)
               hole without fibre damage. A counter punch located on the die side provides a   •  German Federation of Industrial
               form fit between the multifunctional interface and and the FRP. Subsequently,   Research Associations
               the FRP component can be joined to metal structures using established spot   „Otto von Guericke“ e. V. (AiF)
               joining methods. With this novel joining system, FRP structures are intended
               to be integrated economically and efficiently into modern multi-material de-
               signs by the integration into already available assembly process chains for
               classic metal constructions.
























               Multifunctional interfaces for joining FRP and metals using established spot joining technologies











                          Micrograph of a welded joint with
                                multifunctional interface
                                            © LWF
                                                                                                     Supervised by:










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