气体保护金属极电弧焊
焊接
熔池
机械
材料科学
涡流
电弧吹扫
计算机模拟
渗透(战争)
弧(几何)
热影响区
机械工程
电弧焊
冶金
钨极气体保护焊
物理
工程类
运筹学
作者
Zhidong Yang,Yuntao Chen,Dongdong Yang,Chenfu Fang,Guoxiang Xu,Yueyun Li
出处
期刊:International Journal of Modern Physics B
[World Scientific]
日期:2022-03-09
卷期号:36 (09n11)
被引量:1
标识
DOI:10.1142/s0217979222400434
摘要
The cable-type welding wire gas (CWW) metal arc welding (GMAW) is an innovative arc welding process with high efficiency and high welding quality. However, there is still a lack of deep research on the molten pool of CWW-GMAW. The behavior of molten pool of CWW-GMAW was studied by both numerical simulations and experiments. The temperature field and flow field in the longitudinal section and across cross-section under the current of 450 A in CWW-GMAW were simulated. The result shows that the isotherm in front of the molten pool is denser than that in the back on the longitudinal section. The arc rotation force causes the velocity of the molten pool in the direction of weld penetration becoming more significant than that of weld width. The rotating momentum of the droplet affects the temperature distribution of the weld width and penetration on the cross-section of the molten pool. The coupling of electromagnetic force and rotating arc force makes the flow field present a clockwise vortex shape. The simulated results of weld geometries of CWW GMAW are in good agreement with the experimental results, indicating the applicability and accuracy of the established model.
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