REASONS FOR INHOMOGENEOUS SELECTIVE LASER MELTING OF THE MIXTURE OF TITANIUM AND NIONIUM FINE POWDERS
This paper is dedicated to the description and discussion of the results of the selective laser melting of metal powders. Experiments were performed in TPU research center “Modern Manufacturing Technologies” on fine powders of titanium and niobium. Working parameters of this printer for the three-dimensional press and its general device in the form of the flowchart are specified in article. Within work experiments by definition of receiving possibility an alloy niobium titan were executed by the SLS method. The processes which are the cornerstone of laser alloyage technology of metals powders, causing quality of the received preparations are analysed. For the powder used in experimental works its absorption sections and albedo are calculated. The operating modes of the used 3D printer allowing to receive high quality of a printed samples surface are defined. By results of work it is also shown that great demands for dispersion and a ratio of the characteristic sizes have to be made of metals powders.