20.500.12556/RUL-144824 Analiza in optimizacija procesa dvostopenjskega kovanja z rezanjem v vročem stanju Analysis and optimization of a two-stage hot forging process with trimming Diplomska naloga izhaja iz problema, pri katerem je bilo potrebno za podan končni izdelek načrtovati geometrijo odkovka in tehnološki proces utopnega kovanja. Evalvacija tehnološkega procesa je bila izvedena s pomočjo programske opreme QForm UK Cloud 10.2.0, ki omogoča simuliranje različnih preoblikovalnih procesov. Problem je bil obravnavan kot 2D osnosimetričen. Obstoječa rešitev problema, je predstavljala izhodišče diplomske naloge, v kateri je izvedena podrobna analiza obstoječe rešitve in nadaljnja optimizacija geometrije odkovka ter procesa kovanja v skladu z navodili naloge. Rezultat diplomske naloge je izboljšana geometrija odkovka ob smiselnem upoštevanju vpliva temperaturnega raztezanja. Materialni izkoristek predstavljenega tehnološkega procesa znaša 81,4%. K izboljšanju procesa kovanja je bistveno pripomogel popravek začetnih dimenzij surovca, ustreznejša izbira maziva, dvig začetne temperature surovca in uporaba sestavljenih orodij. The diploma thesis is based on a problem in which it was necessary to plan the geometry of the forging and the technological process of hot bulk forging and trimming for a given final product. The evaluation of the technological process was carried out with the help of QForm UK Cloud 10.2.0 software, which enables simulations of various forming processes. The problem was treated as 2D axisymmetric. The existing solution to the problem presented the starting point of the diploma thesis, in which a detailed analysis of the existing solution and further optimization of the geometry of the forging and the forging process was carried out in accordance to the instructions of the thesis. The result of the diploma thesis is an improved geometry of the forging with reasonable consideration of the influence of thermal expansion. The material efficiency of the presented technological process is 81.4%. The correction of the initial dimensions of the blank, a more appropriate choice of lubricant, raising the initial temperature of the blank and the use of compound tools significantly contributed to the improvement of the forging process. Kovanje QForm Simulacije Temperatura Rezanje Forging QForm Simulations Temperature Trimming true false false [M. Kalin] Slovenski jezik Angleški jezik Zaključna naloga 2023-03-15 08:30:32 2023-03-15 08:30:36 2023-11-06 12:10:48 0000-00-00 00:00:00 2023 0 Ljubljana 0 62 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 519.876.5+621.73(043.2) 249075 145290499 22774.pdf 22774.pdf 1 C89D39077A43BBF0ABDB5FFFD3DA9086 aed260f99a337c786185fc320bc8cfeba107f61d591cdbbd059c73effaa9267c 389f3472-c303-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=167364 22775.pdf 22775.pdf 1 72591D786F27B25E154F2A37639E1447 98f838992d1dff5768ef2c12076282044fd3946782e431153ab0fd31d6e657e1 38a0bf1d-c303-11ed-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=167365 Fakulteta za strojništvo 0 0 0