Determination of the deformability and the resulting component properties in the impact extrusion of serially arranged hybrid semi-finished parts (B03)

• Subject Area: Primary Shaping and Reshaping Technology, Additive Manufacturing
• Term: since 2015
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 252662854

In subproject B03, wear-protection measures are developed and evaluated to increase process stability in an impact extrusion process with hybrid pre-joined semi-finished products consisting of steel and aluminium. The suitability of locally adapted tool coatings and topographies is investigated through model tests and further transferred to a multi-stage forming process with locally optimised workpiece lubrication. The topography and geometry deviations of the formed components as well as the modular extrusion tools serve as evaluation criteria, which are compared to the initial state by optical measurement methods.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1153: Process Chain for Manufacturing of Hybrid High Performance Components by Tailored Forming
• Applicant Institution: Gottfried Wilhelm Leibniz Universität Hannover
• Project Heads: Professor Dr.-Ing. Bernd-Arno Behrens; Dr.-Ing. Kai Brunotte