20.500.12556/RUL-169848 Analiza kotov krivljenja in elastičnega izravnavanja materialov za prezračevalne kanale The analysis of bending angles and elastic straightening of materials for ventilation ducts Preoblikovanje pločevine je ključen postopek v industriji prezračevalnih kanalov, kjer natančno upogibanje vpliva na pravilno delovanje sistemov. Pri določanju sil in razdalj upogiba se pogosto uporabljajo posplošeni podatki, kar lahko povzroči odstopanja med izračunanimi in dejanskimi vrednostmi. V nalogi smo eksperimentalno preučili prosti upogib in kalibracijo v V-utopu ter analizirali sile in razdalje, potrebne za doseganje kotov 120° in 90°. Preizkusili smo tri različne materiale različnih debelin in preučevali elastično izravnavanje po upogibanju. Merili smo sile upogibanja in kalibracije ter ugotavljali, kako različne razdalje in sile vplivajo na končni kot preizkušanca. Rezultati so omogočili določitev povezave med izračunanimi in eksperimentalno dobljenimi vrednostmi sil in razdalj, vpliva elastičnega izravnavanja ter optimalnih parametrov za izbrane materiale. Pridobljeni podatki omogočajo boljše razumevanje upogibanja pločevine in prilagajanje postopkov za natančnejše doseganje želenih kotov v industrijski praksi. Sheet metal forming is a crucial process in the ventilation duct manufacturing industry, where precise bending has a direct impact on system performance. However, generalized data is often used to determine bending forces and distances, which result in discrepancies between calculated and actual values. This study experimentally investigates free bending and calibration using a V-die, analyzing the forces and distances required to achieve bend angles of 120° and 90°. Three different materials of varying thicknesses were tested, and springback behavior following bending was examined. Bending and calibration forces were measured, and the influence of different distances of the testing machine's punch travel toward the die on the final angle of the test specimens was evaluated. The results establish a correlation between the calculated and experimentally obtained force and distance values, highlight the effect of springback, and identify optimal parameters for the selected materials. The acquired data provides a better understanding of sheet metal bending and supports process adjustments for more precise angle attainment in industrial applications. upogibanje prosto upogibanje upogibanje s kalibracijo elastično izravnavanje prezračevalni kanali faktor elastičnega izravnavanja bending air bending bottoming springback air ducts loading factor true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2025-06-13 07:30:07 2025-06-13 07:30:15 2025-06-26 14:25:39 0000-00-00 00:00:00 2025 0 0 XI, 44 f. 2025 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539.31:621.98:621.6.057.8(043.2) 270784 240230403 38854.pdf 38854.pdf 1 4F43EC9D372BD8481F418E849DE9AA68 b4455865f51a78b883fa9f7c6f2fe7ea9bd10095d0bc4e2550430400296094e2 fcb83108-4815-11f0-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=211594 Fakulteta za strojništvo 0 0 0