Dragan Mitić 1,a, Nikola Jović 2,b, Davor Gruber 3,c
aNIVAR Niš, Niš
bVOSSLOH Niš, Niš
cDGNDT Niš, Niš
amitanivar@gmail.com, bnikola.jovic@vossloh.com, cdavor.gruber@dgndt.com
DOI: 10.5937/zzk2404179M
Article type: Professional paper
Article language: Serbian/English
Abstract: The paper presents the technology of MAG welding of the tram switch of butt joint of tram-rail 54G2 (W.N.1.0623, group 11.3) to a block of Cogidure (W.N.1.8715, group 3.2) using a solid wire and a copper backing. In addition, an overview of non-destructive testing of the welded joint is given (VT, PT, UT), as well as macrostructure and hardness was given. Two qualification tests were performed, one of which passed the fracture test with variable load and frequency, and the other passed the macro-test.
Keywords: the tram switch; Cogidure
Article received: August 2024
Article accepted: November 2024
Acknowledgements: The paper was published in its original form in the Proceedings of the 33rd Conference with international participation “Welding 2024” held in Vrnjačka Banja, Serbia from October 2 to 5, 2024.