SFB 1153 Tailored Forming
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SFB 1153 – Teilprojekt A2: Wärmebehandlung für belastungsangepasste Werkstoffeigenschaften von Tailored Forming-KomponentenWithin the framework of the Collaborative Research Centre 1153 "Tailored Forming", heat treatment strategies for tailored forming components are developed in the subproject A2. The aim is a local adaptation of the material properties. In addition to this local adaptation, the heating and cooling processes over the entire process chain are also to be considered, thereby resolving conflicts of interest between forming and heat treatment parameters. Since the bond zone of the joining partners represents the main challenge, the analysis of their development (layer thickness, microstructural composition) is of particular importance in all process steps. In order to perform the heat treatment, a tempering arrangement based on induction heating and air-water spray cooling is developed (see Fig. 1). Following the hardening of the steel functional surfaces, a simultaneous heat treatment of the steel-aluminium compounds can be developed and analyzed using different process routes (Fig. 2)Year: 2015Funding: DFGDuration: 07/2015 - 06/2019
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Ressourceneffizienz/Nachhaltigkeit
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HyFunk 2.0 - Experimental and numerical investigations on locally foamable extrusions for additive manufacture of functional hybrid componentsHybrid functional structures made of metal and polymer enable the production of functionally optimized, weight-optimized components. In this project, hybrid functional structures made of aluminum foam and fiber-reinforced polymers are being developed, utilizing the open pores on the foam’s surface to achieve a secure bond with the polymer through form-fit. Openings in the struts between the individual pores are intended to facilitate deeper infiltration and increase the number of undercuts for an improved interlocking effect. The use of aluminum chips for foam production enables simultaneous savings in energy and resources, as this eliminates the need for the complex and energy-intensive production of metal powder.Year: 2026Funding: DFGDuration: 03/2026 - 02/2029
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Joint project OptiMP – Optimisation of offshore monopile structuresMonopile foundations are currently the dominant foundation structure for offshore wind turbines. Due to high static and cyclic loads as well as corrosive environmental conditions, they are exposed to considerable stress. Against this background, cur-rent research is investigating how the structural integrity and service life of mono-piles can be increased while simultaneously reducing the amount of material used. The central research question is to what extent integral optimisation along the entire process chain – from design and manufacturing to operation – can unlock light-weight construction potential and better control fatigue and corrosion mechanisms. To this end, advanced numerical simulation models, improved testing methods and process-accompanying quality assurance measures are being developed and linked together. At the IW, a sub-project is developing a testing system for the online monitoring of cracks below thermal sprayed coatings.Year: 2025Funding: BMWE - Projektträger JülichDuration: 06/2025-05/2028
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Entwicklung vielkristalliner zweiphasiger CoNiAl-Formgedächtnislegierungen mit hoher funktioneller StabilitätZiel des Projektes ist das Problem des Korngrenzenversagens in polykristalline Formgedächtnislegierungen zu überwinden. Die Strategie hierzu umfasst ein gezieltes Aufwachsen einer duktilen γ-Phase an den Korngrenzen und die Unterstützung einer reversiblen Umwandlung dieser Phase in ihre Tieftemperaturmodifikation (ε-Phase). Durch anschließende spannungsinduzierte Martensit-(SIM)-Alterung werden feinste folgende Ausscheidungen gebildet, die eine vollständige γ-ε-Umwandlung unterstützen.Year: 2021Funding: DFGDuration: 04/2021 – 03/2024
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