TY - CONF A1 - Thiede, Tobias A1 - Farahbod, L. A1 - Serrano Munoz, Itziar A1 - Gollwitzer, Christian A1 - Léonard, Fabien A1 - Bruno, Giovanni T1 - µCT Surface Analysis of LBM Struts - Influence of the Build Angle N2 - In this work, the structural integrity of LBM fabricated IN625 small cylinders (d = 1 mm, h = 6 mm) was investigated regarding the porosity and the surface roughness by means of computed tomography. The measurements were carried out on a GE v|tome|x L 300/180 with a reconstructed voxel size of 2 µm. The pores were analyzed for size, shape and spatial distribution. The correlation between compactness C and spatial distribution showed that elongated pores (C < 0.2) appear exclusively within a distance of 80 µm to the sample surface. The reconstructed surface was digitally meshed and unwrapped to evaluate the mean roughness Ra. Since the gravity correlates linearly with the sine of the build angle, the influence of gravity on porosity and surface roughness was determined. T2 - iCT 2019 CY - Padua, Italien DA - 13.02.2019 KW - Additive Manufacturing KW - Laser Beam Melting KW - Selective Laser Melting KW - Computed Tomography KW - Roughness KW - Porosity KW - Build Angle PY - 2019 AN - OPUS4-47775 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -