Influence of Surface Modification of Granules of Powder Material on the Dynamics of Selective Laser Melting

Abstract The method for increasing the efficiency of layer-by-layer laser melting of aluminum powders is proposed in this paper. The analysis of the starting material (powder distribution by size and morphology of the granule surface) is carried out. The possibility of changing the absorbing capacity of a powder composition using highly absorbent materials has been studied. Conclusions were made about the effectiveness of the method for modifying particles of a powder composition based on the data obtained. On the expressed effect of the morphology of the powder material and on the presence of absorbing coatings on the surface of the granules upon absorption of laser radiation energy, data are obtained.