tech 🔬 New aluminum powder for foamable WAAM wire
Researchers at Leibniz University Hannover in Germany created a custom AlMg2Si1.2 aluminum alloy powder for metallic foams. The study focused on making an alloy with a suitable melting range for foam production and wire workability. They successfully produced spherical powder particles, with the 63–90 µm fraction showing the best flow properties. Testing showed the powder created foams with porosities between 64.1 per cent and 67.7 per cent. The next goal is extruding this powder into foamable wire for the Wire Arc Additive Manufacturing (WAAM) process.