20.500.12556/RUL-173144 Delilnik prahu za nastavljanje masnega toka kovinskega prahu pri usmerjenem laserskem nanašanju Powder divider for adjusting the mass flow of metal powder in directed energy deposition V magistrski nalogi obravnavamo problem nastavljanja masnega toka kovinskega prahu pri procesu usmerjenega laserskega nanašanja (ULN). Zaradi omejitev obstoječih sistemov smo zasnovali delilnik masnega toka prahu, ki omogoča hitro nastavljanje masnega toka na osnovi spreminjanja razdalje med dovodno in zbiralno izstopno šobo delilnika. Delilnik smo izdelali z uporabo 3D-tiskanja in ga vključili v eksperimentalni sistem za analizo delovanja delilnika, ki je omogočal sprotno spremljanje masnega toka na izstopu iz zbiralne šobe. Rezultati so pokazali, da je masni tok na izhodu poleg razdalje odvisen tudi od velikosti vstopnega masnega toka in oblike curka prahu, na katero vplivamo z obliko dovodne šobe. Analiza variabilnosti in stacionarnosti masnega toka je pokazala, da sistem dosega dovolj stabilen masni tok za nadaljnjo uporabo pri izvedbi procesa ULN. Rezultati potrjujejo uporabnost zasnove in predstavljajo osnovo za nadaljnji razvoj sistema za nastavljanje masnega toka prahu pri procesu ULN. In this master’s thesis, we address the problem of adjusting the mass flow rate of metal powder in the process of directed energy deposition (DED). Due to the limitations of existing systems, we designed a powder mass flow divider that enables rapid adjustment of the mass flow rate by changing the distance between the inlet and the outlet collection nozzle of the divider. The divider was manufactured using 3D printing and integrated into an experimental setup for analyzing its performance, which allowed real-time monitoring of the mass flow at the outlet. The results showed that the mass flow rate at the outlet, in addition to the nozzle distance, also depends on the magnitude of the inlet mass flow and the shape of the powder stream, which is influenced by the geometry of the inlet nozzle. The analysis of mass flow variability and stationarity demonstrated that the system achieves sufficiently stable flow for further use in the DED process. The results confirm the usefulness of the proposed design and provide a foundation for further development of powder mass flow control systems in DED applications. aditivne tehnologije usmerjeno lasersko nanašanje kovinskega prahu podajalniki prahu kovinski prahovi delilniki masnega toka prahu 3D-tiskanje additive technologies direct energy deposition of metal powder powder feeders metal powders powder flow splitters 3D-printing true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-09-13 08:30:49 2025-09-13 08:30:50 2025-11-05 03:33:23 0000-00-00 00:00:00 2025 0 0 XX, 60 str. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.375.826:621.762:681.12(043.2) 276317 250018819 44010.pdf 44010.pdf 1 BF081E3DCF503659C734814F92F7E512 846fa13dea236f7dff7e219afc2c6ea7fa5a2f1cc052a7b8655747d49295b5c9 06ceda69-906b-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=217315 Fakulteta za strojništvo 0 0 0