Tomaž Vuherer 1, Darko Bajić 2, Mersida Manjgo 3,a, Edvard Bjelajac 4, Andrej Skumavc 5, Uroš Orožim 1, Gorazd Lojen 1
1Univerza u Mariboru, Fakulteta za strojništvo, Maribor, Slovenija
2Univerzitet Crne Gore, Mašinski Fakultet, Podgorica, Crna Gora
3Univerzitet Džemal Bijedić, Mašinski Fakultet, Mostar, BIH
4Messer Slovenija d.o.o., Ljubljana, Slovenija
5SIJ Acroni d.o.o., Jesenice, Slovenija
amersida.manjgo@unmo.ba
DOI: 10.5937/zzk2403099V
Article type: Original scientific paper
Article language: English/Serbian
Abstract: The application of conventional electric arc welding in argon protection (TIG welding process) has limited possibilities. These limitations are primarily related to the thickness of the welded material and the need to prepare the groove for their welding. Overcoming these limitations in TIG welding was done by using activating flux, so the procedure was named ATIG (A-TIG) welding. The paper presents the results of research into the application of activating fluxes in welding austenitic stainless steel 316L with a thickness of 6 mm. By using the BC-31 and QuickTIG melters of different chemical bases, we compare the mechanical properties of the welded joints, as well as with the welded joints of the same material obtained using the conventional TIG procedure. The results show that the best mechanical properties are possessed by welded joints realized by the ATIG process using a mixture of activating fluxes BC – 31 (50%) and QuickTIG (50%) (green + white flux).
Keywords: ATIG; activating flux; TIG welding; mechanical properties; tensile tests; hardness; absorbed energy
Article received: November 2023
Article accepted: February 2024
Acknowledgements: The paper was originally published in the Proceedings of the International Scientific and Professional Conference: Welding Connects – “Welding and Welded Structures 2023,” held in Sarajevo, Bosnia and Herzegovina, from October 25 to 27, 2023.