Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature field
This study investigates the underlying causes of Variable Polarity Plasma Arc Welding (VPPAW) spatial positional instability and its adverse impact on weld seam quality. Microstructural analysis reveals that the primary cause of poor transverse mechanical properties is the asymmetric distribution of...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-09-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542302063X |
| _version_ | 1797646683657469952 |
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| author | Jingbo Liu Fan Jiang Shujun Chen Kaidong Wang Guokai Zhang Bin Xu Wei Cheng Xinqiang Ma |
| author_facet | Jingbo Liu Fan Jiang Shujun Chen Kaidong Wang Guokai Zhang Bin Xu Wei Cheng Xinqiang Ma |
| author_sort | Jingbo Liu |
| collection | DOAJ |
| description | This study investigates the underlying causes of Variable Polarity Plasma Arc Welding (VPPAW) spatial positional instability and its adverse impact on weld seam quality. Microstructural analysis reveals that the primary cause of poor transverse mechanical properties is the asymmetric distribution of grains. Through the study of heat and mass transfer in the molten pool, it was found that the asymmetric flow of molten metal under the influence of gravity is the main factor leading to uneven temperature distribution and asymmetric grain distribution in the weld pool. A novel approach based on a predefined temperature field is proposed to regulate the weld pool's stability and welding quality. The implementation of the predefined temperature field effectively improves VPPAW weld pool flow, leading to enhanced temperature distribution and grain size and distribution. These findings provide a theoretical foundation and valuable engineering recommendations for achieving high-quality spatial position welding in VPPAW. |
| first_indexed | 2024-03-11T15:06:15Z |
| format | Article |
| id | doaj.art-d9d067258b82484983f1dac83f3a74e0 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-11T15:06:15Z |
| publishDate | 2023-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-d9d067258b82484983f1dac83f3a74e02023-10-30T06:03:59ZengElsevierJournal of Materials Research and Technology2238-78542023-09-012653475359Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature fieldJingbo Liu0Fan Jiang1Shujun Chen2Kaidong Wang3Guokai Zhang4Bin Xu5Wei Cheng6Xinqiang Ma7Engineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; Joining and Welding Research Institute, Osaka University, Osaka 5670047, JapanEngineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; Laser Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 370000, China; Corresponding author. Engineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China.Engineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaEngineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaEngineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, ChinaEngineering Research Center of Advanced Manufacturing Technology for Automotive Components Ministry of Education, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; Joining and Welding Research Institute, Osaka University, Osaka 5670047, Japan; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, ChinaLaser Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 370000, ChinaLaser Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 370000, ChinaThis study investigates the underlying causes of Variable Polarity Plasma Arc Welding (VPPAW) spatial positional instability and its adverse impact on weld seam quality. Microstructural analysis reveals that the primary cause of poor transverse mechanical properties is the asymmetric distribution of grains. Through the study of heat and mass transfer in the molten pool, it was found that the asymmetric flow of molten metal under the influence of gravity is the main factor leading to uneven temperature distribution and asymmetric grain distribution in the weld pool. A novel approach based on a predefined temperature field is proposed to regulate the weld pool's stability and welding quality. The implementation of the predefined temperature field effectively improves VPPAW weld pool flow, leading to enhanced temperature distribution and grain size and distribution. These findings provide a theoretical foundation and valuable engineering recommendations for achieving high-quality spatial position welding in VPPAW.http://www.sciencedirect.com/science/article/pii/S223878542302063XMolten metalFlow behaviorMicrostructureMechanical propertiesGrain sizeGravity effect |
| spellingShingle | Jingbo Liu Fan Jiang Shujun Chen Kaidong Wang Guokai Zhang Bin Xu Wei Cheng Xinqiang Ma Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature field Journal of Materials Research and Technology Molten metal Flow behavior Microstructure Mechanical properties Grain size Gravity effect |
| title | Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature field |
| title_full | Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature field |
| title_fullStr | Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature field |
| title_full_unstemmed | Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature field |
| title_short | Cross-scale process quality control of variable polarity plasma arc welding based on predefined temperature field |
| title_sort | cross scale process quality control of variable polarity plasma arc welding based on predefined temperature field |
| topic | Molten metal Flow behavior Microstructure Mechanical properties Grain size Gravity effect |
| url | http://www.sciencedirect.com/science/article/pii/S223878542302063X |
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