20.500.12556/DKUM-75976 Optimizacija kombiniranega varjenja debelostenske nerjavne cevi Combination welding process optimisation for heavy wall pipe welding V diplomskem delu sta opisana postopka varjenja TIG in MIG, zaščitni plini, lege varjenja, viri varilnih tokov ter dodajni in osnovni materiali. Z eksperimentalnim delom smo skušali optimizirati proces varjenja z avtomatizirano varilno napravo in določiti sprejemljivosti varov pri uporabi dveh različnih dodajnih materialov. Eksperimenti so pokazali, da na izgled in dimenzije varov vpliva hitrost varjenja, oscilacija, hitrost podajanja žice in uporabljen dodajni material. Ugotovili smo, da pri varjenju z dodajnim materialom legiranim s silicijem dobimo lepše razlite vare oz. navare, prav tako pa dobimo tudi večje tehnološko okno optimalnih parametrov. The diploma thesis describes the welding processes GTAW and GMAW, protective gases, welding positions and sources of welding current as well as basic and additing material. Through experimental part we tried to optimize process of welding with automatic welding machine and determine the acceptability of welds using two different welding wires. Experiments have shown that appearance and dimensions of welds is influenced by welding speed, oscillation, wire feed speed and used additing material. It has been found that welding with silicon alloyed additing material causes better spilled welds and also increases technological window of optimal parameters. varjenje var TIG MIG nerjaveče jeklo cev zaščitni plini welding weld GTAW GMAW stainless steel pipe protective gas true true false [A. Župevc] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-03-25 19:07:11 2020-12-16 12:02:31 2022-08-09 11:59:30 2021-05-14 03:14:06 2020 0 Krško 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.791:669.14(043.2) 42982915 URN:SI:UM:DK:UQAIGVQX VS_Zupevc_Aleks_2020.pdf VS_Zupevc_Aleks_2020.pdf 1 77224E33CDA7742BF825DD5865BB0B7D c1bfdb635430144e5172004d05b43ac43568d044786e0ef6d0a614cbd23ab9f9 721a4488-7c07-11eb-bb7a-00155d0001ca 20.500.12556/dkum/7d16a01a-7aca-4373-a9ba-7bef7a17b7a4 https://dk.um.si/Dokument.php?lang=slv&id=142429 Fakulteta za energetiko 0 0 0