Tungsten Fabricated by Laser Powder Bed Fusion

Abstract Additive Manufacturing (AM) is the process that allows production of complex geometry and lightweight components. Thanks to high density refractory metals, AM could be a possible solution for their application in aerospace field biomedical or future nuclear fusion devices. Yet, Laser Powder Bed Fusion (LPBF) metals as Ta, Mo, W faces some challenges due main properties: melting point, heat conductivity, susceptibility cracks. The purpose this study optimize parameters order produce high-density Tungsten parts by LPBF on an EOS M100 (maximum power 170 W). characterization performed through physical properties measurements microstructural analysis. Single Scan Tracks (SSTs) are produced top surfaces blocks evaluate give regular-shape continuous melt-pools. Both analytical experimental optimizations were performed. Micro-hardness done dense bulk specimens. Finally, description cracks additively manufactured was