The Influence of Shielding Gas Flow Rate on the Transfer Frequency of Electrode Metals Drops

7th International Scientific Practical Conference "Innovative Technologies in Engineering"

Chinakhov, D.A.^1 ; Grigorieva, E.G.^1 ; Mayorova, E.I.^1 ; Kartsev, D.S.^1

Yurga Institute of Technology, National Research Tomsk Polytechnic University, Leningradskaya st., 26, Yurga, Kemerovo region

652055, Russia^1

关键词: Chemical compositions;    Consumable electrodes;    Dynamic impacts;    Electrode metals;    Gas-shielding;    Shielding gas;    Weld metal;    Weld pool;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/142/1/012005/pdf
DOI  :  10.1088/1757-899X/142/1/012005

来源: IOP

【 摘 要 】

Chemical composition of weld metal and properties of a joint weld are dominated by the processes occurring in the drop of molten electrode metal and in metal of the weld pool. Under certain conditions in consumable electrode welding with jet gas shielding the drop of electrode metal is influenced significantly both by main forces and the force of gas-dynamic impact of the shielding gas jet. The results of research have revealed that changing rate of shielding gas flow on the nozzle section influences the processes taking place in the welding area. There are changes in the transfer frequency of electrode metal drops and chemical composition of weld metal.