Multimaterial arc-based additive manufacturing for a load-orientated component design

• Applicant: Dr.-Ing. Kai Treutler
• Subject Area: Joining and Separation Technology
• Term: since 2025
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 563325659

The project deals with the creation of the material-side basis for the realisation of a multi-material, load-dependent component design. Multimaterial means the use of different materials (filler metals) in one component. An example of this is a component in which a different material with specific toughness or strength properties is used in the area subject to high mechanical stress (e.g. notch base) than in the surrounding, less stressed component area. This procedure enables the targeted production of materials reinforced in the load direction, especially in the additive manufacturing of metallic components. The targeted adjustment of the local properties under quasi-static and sudden dynamic loads is at the centre of the investigations. One focus of the sub-project is the modification, further development and validation of structural-mechanical relationships, e.g. according to Voigt-Reuss. The focus is on the special boundary conditions in multi-material arc-based additive manufacturing (mixing and anisotropy). This is realised through the development of correlations between welding process parameters and the metallurgical and mechanical properties.

• DFG Programme: Research Grants
• Co-Investigator: Professor Dr.-Ing. Volker Wesling