TY - GEN A1 - Köhler, Marcel A1 - Nikitin, Alexander A1 - Sonnenfeld, Peter A1 - Ossenbrink, Ralf A1 - Jüttner, Sven T1 - Wire arc additive manufacturing of aluminum foams using TiH2-Laced Welding Wires T2 - Materials N2 - Composite materials made from aluminum foam are increasingly used in aerospace and automotive industries due to their low density, high energy absorption capacity, and corrosion resistance. Additive manufacturing processes offer several advantages over conventional manufacturing methods, such as the ability to produce significantly more geometrically complex components without the need for expensive tooling. Direct Energy Deposition processes like Wire Arc Additive Manufacturing (WAAM) enable the additive production of near-net-shape components at high build rates. This paper presents a technology for producing aluminum foam structures using WAAM. This paper’s focus is on the development of welding wires that are mixed with a foaming agent (TiH2) and produce a foamed weld metal as well as their processing using MIG welding technology. KW - MIG welding KW - wire arc additive manufacturing KW - direct energy deposition KW - aluminum foam KW - titanium hydride KW - foaming agent KW - metal-cored wires KW - continuous powder extrusion KW - energy absorption Y1 - 2024 U6 - https://doi.org/10.3390/ma17133176 SN - 1996-1944 VL - 17 IS - 13 PB - MDPI AG ER -