20.500.12556/DKUM-76889 Odprava površinskih napak na odkovku s spremembo oblike gravure utopa diplomsko delo Elimination of surface defects on forgings by changing the engraving shapes Diplomsko delo obravnava iskanje rešitev za pojavo razpok na površju ohišja kovanega volanskega končnika v podjetju Unior. S simuliranjem kovanja v programskem paketu DEFORM – 3D smo spremljali razporejanje materiala v utopu in iskali razloge za nastanek razpok. Na podlagi rezultatov računalniških simulacij smo spreminjali geometrijo gravure utopa in dodajali faze kovanja ter iskali najboljše možne variante. Preizkus končne verzije orodja in dodane vmesne faze kovanja v proizvodnji je pokazal, da se napake na odkovku ne pojavljajo več. The diploma thesis presents solutions for surface crack elimination on the forged steering tie rod end in the company Unior. With forging simulation program DEFORM – 3D, we could monitor material layout behavior and inspect for potential crack development. Based on the results of computer simulations, we modified geometry of the engraving shapes and added the forging stages to determine the best possible variation. Testing the final version of the tool with an additional intermediate forging stage, has shown that defects on the forgings no longer occur. utopno kovanje geometrija gravure računalniške simulacije DEFORM – 3D faze kovanja testiranje orodja closed die forging engraving shape computer simulation DEFORM – 3D forging stage tool testing true true false [D. Stamenov] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-07-24 08:53:40 2020-08-31 17:02:50 2022-08-09 14:05:32 2020-12-12 03:19:29 2020 0 Maribor 0 Maribor VI, 43 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.7.019:621.73.043(043.2) 42122243 URN:SI:UM:DK:XATX5YHE UN_Stamenov_Domen_2020.pdf UN_Stamenov_Domen_2020.pdf 1 DF723D45DFA2B2ECCB3488B9319E07FA 936875dd0a866ea46a46a209f17a0e85ef889a48f80edc1405932808c33ab64b 6cb80e84-7c11-11eb-bb7a-00155d0001ca 20.500.12556/dkum/50ebfbfd-b515-4e98-8519-4c9e01452cc1 https://dk.um.si/Dokument.php?lang=slv&id=143783 Fakulteta za strojništvo 0 0 0