A4 Conference proceedings

Use of CO2 in modified short arc MAG-welding


Publication Details
Authors: Toivanen Jenni, Hiltunen Esa, Martikainen Jukka
Publication year: 2015
Language: English
Related Journal or Series Information: International Conference Mechanika
Title of parent publication: Proceedings of 20th International Mechanika conference
Start page: 244
End page: 248
ISSN: 1822-2951
JUFO-Level of this publication: 0
Open Access: Not an Open Access publication

Abstract
Today's pressures in welding manufacturing costs in metal industry has lead not only to development of new materials, but also development of multiple modified welding processes, new welding consumables and improved manufacturing technology. Carbon dioxide as a shielding gas causes a lot of spatters compared to argon rich shielding gases in MAG-welding. This fact increases unnecessary finishing work with extra costs. In this study the modified MAG- short arc welding process is used to determine the amount of welding spatters when using lower price shielding gas, carbon dioxide. Also subject of experiment was to observe penetration profile of weld and heat input. Welding was performed by mechanized welding and base material was structural steel with steel grade 235 MPa-420 MPa. Tests proved that the modified MAG-process reduce spatters and results to lower heat input compared to traditional short arc MAG-process when using CO2 as a shielding gas.

Last updated on 2017-22-03 at 14:24

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