20.500.12556/RUL-171474 Popravilo gravurnega vložka s tehnologijo direktnega energijskega odlaganja (DED) Repair of the die insert using Directed Energy Deposition (DED) Namen diplomske naloge je raziskati možnost popravila gravurnih vložkov za tlačno litje aluminija s tehnologijo DED. Preizkušeni so bili trije dodajni materiali, za katere so bile izvedene kemijske analize, meritve trdote, udarne žilavosti in mikrostrukturne analize. Na podlagi rezultatov je bil izbran najprimernejši material, s katerim je bilo nato uspešno izvedeno dejansko popravilo poškodovanega gravurnega vložka. Delo združuje eksperimentalni in uporabni pristop ter ponuja smernice za nadaljnje optimizacije postopkov DED v industrijskem okolju. The aim of this thesis was to investigate the possibility of repairing engraving inserts used in high-pressure die casting of aluminium using Direct Energy Deposition (DED) technology. Three different filler materials were tested, and their composition, hardness, impact toughness, and microstructural characteristics were examined. Based on the results, the most suitable material was selected and successfully applied in the actual repair of a damaged engraving insert. The work combines an experimental and practical approach and provides guidelines for further optimisation of DED processes in industrial applications. direktno energijsko odlaganje (DED) navarjanje popravilo visokotlačno litje aluminija aditivne tehnologije gravurni vložek Direct Energy Deposition (DED) deposition welding repair high-pressure die casting (HPDC) of aluminium additive manufacturing technologies engraving insert true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-08-27 08:31:16 2025-08-27 08:31:18 2025-09-03 14:03:47 0000-00-00 00:00:00 2025 0 0 XI, 32 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.791.725:621.744:620.1(043.2) 274779 247552259 42819.pdf 42819.pdf 1 DF7C09D7CFEDE3CB38065A2E99377BF0 a4432c3e67e60d1cf2f757c2597e4eb3e28ec5de17570a58cd90ed482609c2ea 4fee7ddb-830f-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=214805 Fakulteta za strojništvo 0 0 0