20.500.12556/RUL-141753 Vpliv varilnih parametrov in zaščitnih plinov na brizganje pri varjenju MAG nerjavnega in konstrukcijskega jekla Influence of welding parameters and protective gases on the spatter formation during MAG welding of stainless and structural steel V zaključni nalogi je obravnavana problematika brizganja taline pri varjenju nosilnega dela nakladalnega prostora tovornjaka po postopku MAG. Gre za varjenje prečnih profilov iz konstrukcijske jeklene pločevine na robni profil iz krivljene nerjavne pločevine. Varili smo zvare v PA in PB legi, pri tem pa uporabili različne varilne parametre in zaščitne pline. S pomočjo vizualne metode smo dobili količino nastalih obrizgov pri posameznem zvaru. Rezultate smo analizirali, jih med seboj primerjali in tako razbrali vpliv posameznega varilnega parametra in zaščitnega plina na število obrizgov. Beležili smo tudi čas odstranjevanja obrizgov in ga primerjali s časom varjenja. Ugotovili smo, da ima največji vpliv na zmanjšanje števila obrizgov izbira pravega zaščitnega plina. Manjši vpliv na to, pa so imele različne nastavitve varilnega vira, čistoča plinske šobe ter izrabljenost kontaktne šobe. The thesis deals with the problem of spatter formation during MAG welding of the support section of a truck loading space. The welding takes place between structural steel transverse profiles and stainless steel edge profile. Welds were made in PA and PB welding positions, using different welding parameters and protective gases. The visual method was used to obtain the number of spatters formed with each weld. The results were analyzed and compared to each other to see the effect of welding parameters and protective gas on the number of spatters. We also monitored the time spent on removing the spatter and compared it with the welding time. It was found that the biggest impact on reducing the number of spatters has the choice of the protective gas. However, the different welding source settings, the cleanliness of the gas nozzle and the wear of the contact nozzle had less influence. nakladalni prostor varilni parametri zaščitni plin varjenje MAG kontaktna šoba obrizgi loading space welding parameters protective gas MAG welding contact nozzle spatter true false false [T. Kernel] Slovenski jezik Angleški jezik Zaključna naloga 2022-10-07 08:30:24 2022-10-07 08:30:32 2023-10-13 08:54:42 0000-00-00 00:00:00 2022 0 Ljubljana 0 XVI, 38 f. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.791.75(043.2) 246663 133839363 21264.pdf 21264.pdf 1 B7FCD5FFDCF663D2DC059794B7AF1466 bf7feef5591d72efb4cce504399ef36c646666a9f926ce05c822f721ebe78147 84761880-4609-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=162876 Fakulteta za strojništvo 0 0 0