Project B01

Laser Directed Energy Deposition of functionally graded materials on porous metals

In B01, the additive manufacturing technology Laser Directed Energy Deposition (DED-LB) is used to manufacture graded material layers on porous metals. Grading allows the material properties to be varied in a targeted manner. The systematic variation of the material properties is achieved by the local variation of the material composition. For this purpose, different powder compositions are supplied to the melting zone for individual layers or within a layer. In this way, the properties of different materials can be combined in one component. Two specific material combinations are initially considered: a combination of the stainless steels 316L and 17-4 PH and a combination of the aluminum alloy AlSi10Mg and 17-4 PH. The deposited material layers are examined with regard to their surface topography, microstructure, microhardness, chemical composition and bonding. On this basis, manufacturing strategies for the production of graded material layers on porous metals are developed, which form the basis for the DED-LB production of hybrid porous components.

Project leader
Prof. Dr.-Ing. Jan C. Aurich

Doctoral researchers
Dipl.-Ing. Lars Bachert
Jacques Platz, M.Sc.

Non-research staff
Jan-Luka Neubert

Publications

Peer-reviewed articles and books

J. Platz, J. Steiner-Stark, B. Kirsch, J.C. Aurich: Investigation on different laser-powder alignments and their influence on part properties in high-speed Directed Energy Deposition. Procedia CIRP 124 (2024): S. 190-193. 10.1016/j.procir.2024.08.097

J. Platz, J. Steiner-Stark, B. Kirsch, J.C. Aurich: Fertigung funktional gradierter Materialien auf porösen Metallen durch Laserauftragschweißen. Zeitschrift für wirtschaftlichen Fabrikbetrieb 119/7-8 (2024): S. 515-519. 10.1515/zwf-2024-1092