
Germany’s Fraunhofer and Australia’s RMIT Control 3D-Printed Metal Grain Structure
German and Australian researchers have demonstrated a new method to control the internal grain structure of 3D-printed metal parts during printing. The UltraGRAIN project uses pulsed-laser excitation to reduce grain size by up to 75 percent in targeted areas. This allows manufacturers to print stronger zones exactly where loads are highest, improving part performance and extending service life.














