Metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy
Abstract Alternating current (AC) arc melting technology has been developed for the manufacturing of lightweight materials and provides a potential heat source in welding and additive manufacturing. However, metal flow and the corresponding effects of AC arc melting remain unclear. Here, 3D internal...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-05-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-025-00819-x |
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| author | Bin Xu Chengyu Zhang Guokai Zhang Fan Jiang Shinichi Tashiro Manabu Tanaka Shujun Chen |
| author_facet | Bin Xu Chengyu Zhang Guokai Zhang Fan Jiang Shinichi Tashiro Manabu Tanaka Shujun Chen |
| author_sort | Bin Xu |
| collection | DOAJ |
| description | Abstract Alternating current (AC) arc melting technology has been developed for the manufacturing of lightweight materials and provides a potential heat source in welding and additive manufacturing. However, metal flow and the corresponding effects of AC arc melting remain unclear. Here, 3D internal and surface flows in an aluminium alloy during AC tungsten arc melting are studied via in situ/operando 4D X-ray radiography and laser high-speed imaging. The molten flow velocity under positive polarity is much greater than that under negative polarity. We find that liquid metal flow is mainly influenced by the cathode spot motion at the molten pool surface in the electrode positive stage. This information can be used to guide process optimization in the manufacturing of light metals via AC arc melting. |
| format | Article |
| id | doaj-art-ced37498b60c4b55a086d3e1f2e142a5 |
| institution | Kabale University |
| issn | 2662-4443 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-ced37498b60c4b55a086d3e1f2e142a52025-08-20T03:53:12ZengNature PortfolioCommunications Materials2662-44432025-05-016111110.1038/s43246-025-00819-xMetal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloyBin Xu0Chengyu Zhang1Guokai Zhang2Fan Jiang3Shinichi Tashiro4Manabu Tanaka5Shujun Chen6College of Mechanical & Energy Engineering, Beijing University of TechnologyCollege of Mechanical & Energy Engineering, Beijing University of TechnologyCollege of Mechanical & Energy Engineering, Beijing University of TechnologyCollege of Mechanical & Energy Engineering, Beijing University of TechnologyJoining and Welding Research Institute, Osaka UniversityJoining and Welding Research Institute, Osaka UniversityCollege of Mechanical & Energy Engineering, Beijing University of TechnologyAbstract Alternating current (AC) arc melting technology has been developed for the manufacturing of lightweight materials and provides a potential heat source in welding and additive manufacturing. However, metal flow and the corresponding effects of AC arc melting remain unclear. Here, 3D internal and surface flows in an aluminium alloy during AC tungsten arc melting are studied via in situ/operando 4D X-ray radiography and laser high-speed imaging. The molten flow velocity under positive polarity is much greater than that under negative polarity. We find that liquid metal flow is mainly influenced by the cathode spot motion at the molten pool surface in the electrode positive stage. This information can be used to guide process optimization in the manufacturing of light metals via AC arc melting.https://doi.org/10.1038/s43246-025-00819-x |
| spellingShingle | Bin Xu Chengyu Zhang Guokai Zhang Fan Jiang Shinichi Tashiro Manabu Tanaka Shujun Chen Metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy Communications Materials |
| title | Metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy |
| title_full | Metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy |
| title_fullStr | Metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy |
| title_full_unstemmed | Metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy |
| title_short | Metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy |
| title_sort | metal flow mechanisms during alternating current arc welding and additive manufacturing of aluminium alloy |
| url | https://doi.org/10.1038/s43246-025-00819-x |
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