ABSTRACT

It is important to understand the effect of the protective gas atmosphere on the welding process to relate qualitatively the chemical composition of the welding atmosphere to the quality of the weld produced. Of particular interest are the reactions occurring within the gas phase of the arc welding process. This article presents the results conducted on the gaseous atmosphere with the aid of gas chromatography. The objective of this work was to obtain an overall understanding of the quantitative interaction of the welding atmosphere and liquid metal, and to improve the quality of the weld metal produced by specific metallurgical and technological means.