892 KB0 KB200720252025Bartolj, JanHomar, DavidMajdič, FrancStrenčan, Domenletnik:31številka:4str. 210-214ISSN:1318-7279COBISSID_HOST:249602307URN:URN:NBN:SI:doc-KQYKLEPIslUniverza v Ljubljani, Fakulteta za strojništvoVentil (Ljubljana)additive technologiesaditivne tehnologijeconnection platesgeometry optimizationhidravlični ventilihydraulic valvesmeasurementsmeritveoptimizacija geometrijepriključne ploščeDodajalna tehnologija v praksi| testna analiza hidravličnega ventila z inovativno ventilsko ploščo|The study investigates the use of additive manufacturing technologies in the production of hydraulic components, focussing on 3D-printed valves and manifolds with integrated pressure sensors. Additive te- chnologies such as Metal Binder Jetting (MBJ) and Selective Laser Melting (SLM) enable design freedom, component consolidation and optimisation of internal geometry to reduce pressure losses and mass. In the study, metal valves were manufactured and tested using the MBJ process, which enables high pro- ductivity and the production of complex structures without supports. A comparison with the SLM process shows the advantages of the MBJ process through higher production speeds, lower costs and a reduced need for support structures. Flow and pressure measurements showed that the additively manufactured valve manifold has a lower pressure drop of around 4 MPa at the same flow rate, which means greater efficiency. In addition, the 3D-printed valve body is 67% lighter than the conventionally manufactured one. The results confirm that additively manufactured components are suitable for series use in the hydraulics industry, as they offer better efficiency, shorter assembly times and the possibility of design optimisation despite higher costs compared to conventional partsŠtudija proučuje uporabo dodajalnih (oz. aditivnih) tehnologij pri izdelavi hidravličnih komponent, z osre- dotočenostjo na 3D-tiskane ventile in priključne plošče z integriranimi tlačnimi senzorji. Aditivne tehnolo- gije, kot sta Metal Binder Jetting (MBJ) in Selective Laser Melting (SLM), omogočajo oblikovno svobodo, konsolidacijo delov in optimizacijo notranje geometrije za zmanjšanje tlačnih izgub ter mase. V raziskavi so izdelani in testirani kovinski ventili, izdelani s postopkom MBJ, ki omogoča visoko produktivnost in izde- lavo kompleksnih struktur brez podpor. Primerjava s SLM razkriva prednosti MBJ zaradi večjih izdelovalnih hitrosti, nižjih stroškov in manjši potrebi po podpornih strukturah. Meritve pretoka in tlaka so pokazale, da ima aditivno izdelana ventilska plošča za približno 4 MPa nižji padec tlaka pri enakem pretoku, kar pomeni večjo učinkovitost. Poleg tega je 3D-tiskano ohišje ventila za 67 % lažje od konvencionalno izdelanega. Rezultati potrjujejo, da so aditivno izdelane komponente primerne za serijsko uporabo v hidravlični indu- striji, saj ponujajo boljše izkoristke, krajše čase montaže in možnost oblikovne optimizacije, kljub višjim stroškom v primerjavi s konvencionalnimi deliTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo