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Development of surface tailored metal powders for increased production efficiency at the laser powder-bed fusion additive manufacturing process (PBF-LB/M)

Contact person: Arne Lüddecke

The additive manufacturing of metals is used especially in the automotive, aircraft and medical industries. Advantages of additive processes are a possible functional integration and realization of complex structures without geometric restrictions (especially in lightweight and prototype construction). Challenges are mainly seen in the low productivity and the high costs of the process. To increase the productivity and relating thereto the speed of PBF-LB/M processes the state of the art is the use of multiple energy-intensive lasers and bigger build envelopes to increase productivity, which leads consequently to higher complexities of PBF-LB/M machines and machine prices. Therefore, the project aims at improving the efficiency of the PBF-LB/M process by modifying metal powders.
The Project is part of the DFG priority program SPP 1211 MATframe (Materials for additive manufacturing). The main objectives are the further development and modification of conventionally available metal powders with the focus on increasing the absorption of laser light, the flow properties in the deposition process and the thermal conductivity of the powder. This will be achieved by coating nanoparticles on the metal particles surface. The coating process will be executed via fluidized systems and high shear mixing and tailored particles are then manufactured and tested in PBF-LB/M process in close cooperation with the Hybrid Additive Manufacturing at the Ruhr-University Bochum.


Team Members

Current Projects

Ultra-fine grinding of multi-component systems in stirred media mills more

Future Grinding Technologies more

InnoRec – Innovative recycling processes for new lithium cell Generations more

Charge-based selective separation of submicron particles from grinding processes more

Development of surface tailored metal powders for increased production efficiency at the laser powder-bed fusion additive manufacturing process (PBF-LB/M) more

Silicon Graphite goes Industry more

Finished Projects
Nanogrinding of organic and inorganic materials more

Increase of the energy efficiency by controlling the flow properties and minimizing the agglomeration in dry fine grinding processes more