Wetting behavior of melt and its effect on lack of fusion in arc oscillating NG-GTAW

Fuxiang Li,Qingjie Sun,Peng Jin,Yibo Liu,Mingliang Chen,Junzhao Li,Shaojun Hou,MingXin Wang, Yongzhuang Ji

Journal of Materials Processing Technology（2021）

引用 12|浏览4

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摘要

•A novel single-sidewall wetting test is developed to study the wetting behavior of melt on the sidewall.•Arc oscillation can promote the wetting behavior of melt.•The effect of arc force and surface tension on the wettability of melt is first established in arc oscillating NG-GTAW.•Excellent wetting of melt on the sidewall contributes to the elimination of lack of fusion.

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关键词

Wettability,Narrow gap,Arc oscillation,Lack of fusion,Joining

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