this extensive effort is to a modification AG) of the biaxial tensile test. This principle Texture optimization for the improve- n Draw bead tool allows testing of materials under multi-axial ment of forming and mechanical strain states. For this purpose a special properties of Mg sheets using technical biaxial draw bead tool was designed. processing (Deutsche Forschungsge- Biaxial testing machine meinschaft) Projects Hole roller clinching of multi-mate- n of different combinations of pre- rial-lightweight joints (Deutsche Prevention of surface deflections for n and post-forming is required. To Forschungsgemeinschaft) sheet metal parts (AiF/EFB) address the experimental effort Connection optimization of progressive n Mobility for rural areas in developing n the institute acquired a universal die components (AiF/EFB) countries (BFS) sheet metal testing machine BUP Inline-Qualitycontrol in pressing tools Improving the time dependent evalua- n n 1000, funded by the German (BMW AG) tion method of tests for the determi- Research Group (DFG). Stiffening of cambered sheet metal nation of the forming limit curve and n Furthermore, designs: numeric bead optimization mapping multi-linear strain paths by a coupled algorithm considering developing of a numerical appears highly complex in practice nonlinear forming limits (Deutsche equivalent model (AiF/EFB) and involves a range of testing Forschungsgemeinschaft) Optimized risk management in press equipment, e.g. different n Intelligent lightweight design through shops for minimizing breakdown costs specimens, testing machines and n multi-component processes (Aif/Fosta) in case of facility downtime (BMW tools. One possibility to overcome Research Focus Craftformer n Industrial engineering n Core blowing machine n Tool design n Workshop n Engineering and planning processes n Competence Process chain car body sheet n Alternative metal forming processes for n small batch production and prototyping Cutting surface quality, wear, accuracy Tool technology n Molding materials n Continuous casting n Residual stress analysis and material n characterization Infrastructure Hydraulic press, high speed punching press, triple-action blanking press n 3D printer for inorganically bound core n sands Measurement instrumentation (residual stresses, surface, geometry, mechani- n cal properties, …) Various tools (cold and heated) n Stamping and bending machine n Rotational cutting n Casting equipment n
Draw bead tool Biaxial testing machine of different combinations of pre- and post-forming is required. To address the experimental effort the institute acquired a universal sheet metal testing machine BUP 1000, funded by the German Research Group (DFG). Furthermore, mapping multi-linear strain paths appears highly complex in practice and involves a range of testing equipment, e.g. different specimens, testing machines and tools. One possibility to overcome this extensive effort is to a modification of the biaxial tensile test. This principle allows testing of materials under multi-axial strain states. For this purpose a special biaxial draw bead tool was designed. Projects n Prevention of surface deflections for sheet metal parts (AiF/EFB) n Mobility for rural areas in developing countries (BFS) n Improving the time dependent evalua- tion method of tests for the determi- nation of the forming limit curve and developing of a numerical equivalent model (AiF/EFB) n Optimized risk management in press shops for minimizing breakdown costs in case of facility downtime (BMW AG) n Texture optimization for the improve- ment of forming and mechanical properties of Mg sheets using technical processing (Deutsche Forschungsge- meinschaft) n Hole roller clinching of multi-mate- rial-lightweight joints (Deutsche Forschungsgemeinschaft) n Connection optimization of progressive die components (AiF/EFB) n Inline-Qualitycontrol in pressing tools (BMW AG) n Stiffening of cambered sheet metal designs: numeric bead optimization by a coupled algorithm considering nonlinear forming limits (Deutsche Forschungsgemeinschaft) n Intelligent lightweight design through multi-component processes (Aif/Fosta) Research Focus n Industrial engineering n Tool design n Engineering and planning processes Competence n Process chain car body sheet n Alternative metal forming processes for small batch production and prototyping Cutting surface quality, wear, accuracy n Tool technology n Molding materials n Continuous casting n Residual stress analysis and material characterization Infrastructure n Hydraulic press, high speed punching press, triple-action blanking press n 3D printer for inorganically bound core sands n Measurement instrumentation (residual stresses, surface, geometry, mechani- cal properties, …) n Various tools (cold and heated) n Stamping and bending machine n Rotational cutting n Casting equipment n Craftformer n Core blowing machine n Workshop
39-Volk-Institute_of_Metal_Forming_and_Casting-2015.docx