Welding of thick-walled steels in a narrow groove
arjovicic@mas.bg.ac.rs- bnebojsa.pantelic@varsistem.co
- cpavlovic_danijel@yahoo.com
- dsimon.sedmak@yahoo.com
- ez.strabacki@konmat.com
- fopopovic@mas.bg.ac.rs
- grprokic@ mas.bg.ac.rs
- DOI: https://doi.org/10.5937/zzk1803119J
- Article Type: Original scientific paper
- Language: Serbian/English
- Received: July 2018
- Accepted: --
Abstract
Reduction in groove opening can significantly contribute to welding efficiency and productivity of heavy metal structures. It is common practice to use welded joint groove angles of 45° and 60°. Reduction of the groove opening angle decreases the necessary number of welding passes, thus decreasing the welding duration, filler material consumption, and residual stresses and strain. However, groove angle reduction leads to certain difficulties. It is hard to control the arc in a narrow groove, which could lead to welded joint quality issues. In this paper, welding of butt joints made of 22 mm thick steel with the groove angle of 20° is shown. Welding was performed using the MAG procedure, with a software-controlled arc.
Keywords
welding, narrow groove, software controlled arc, filler material saving
Acknowledgements
The paper was originally published in the Proceedings of the 4th IIW South-East European Welding Congress Safe Welded Construction by High Quality Welding, held in Belgrade from October 10 to 13, 2018.
References
Under construction