Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAW
Abstract A three-dimensional numerical model based on the volume-of-fluid (VOF) method is typically preferred for studying high-current gas metal arc welding (GMAW) metal transfer mechanism and then controlling it. It is informed that the rotating spray transfer is extremely complicated, and some re...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2022-10-01
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| Series: | Chinese Journal of Mechanical Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s10033-022-00783-4 |
| _version_ | 1811335270276005888 |
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| author | Lei Xiao Ding Fan Jiankang Huang |
| author_facet | Lei Xiao Ding Fan Jiankang Huang |
| author_sort | Lei Xiao |
| collection | DOAJ |
| description | Abstract A three-dimensional numerical model based on the volume-of-fluid (VOF) method is typically preferred for studying high-current gas metal arc welding (GMAW) metal transfer mechanism and then controlling it. It is informed that the rotating spray transfer is extremely complicated, and some researchers have focused on simplified models without considering the energy conservation to make analysis manageable for the unstable metal transfer process. Using our created numerical model, the metal transfer of high-current GMAW with shielding gas of different conductivities has been studied by analyzing acting forces and fluid flows in the metal liquid column, especially for the contributions of the self-induced electromagnetic force, equivalent volume force of the capillary pressure of the surface tension (Named surface tension force in this work), static arc pressure. It is found that the unbalanced electromagnetic force greatly promotes the metal rotating motion in 500 A metal inert gas (MIG) welding with pure argon shielding gas and it pushes the metal liquid column to rotate. Considering the arc constricting effect in active shielding gas by simply changing the arc conductivity, it is found that the metal liquid column no longer rotates, it turns to swing since the unbalanced electromagnetic force is large enough to break the rotating motion. The calculated results of the metal liquid column deflected angle and rotating/swing frequency agree well with the experiment of high-speed camera observations. |
| first_indexed | 2024-04-13T17:22:37Z |
| format | Article |
| id | doaj.art-c38a7506886a49898c2ea8a3583cb6a6 |
| institution | Directory Open Access Journal |
| issn | 1000-9345 2192-8258 |
| language | English |
| last_indexed | 2024-04-13T17:22:37Z |
| publishDate | 2022-10-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Chinese Journal of Mechanical Engineering |
| spelling | doaj.art-c38a7506886a49898c2ea8a3583cb6a62022-12-22T02:37:56ZengSpringerOpenChinese Journal of Mechanical Engineering1000-93452192-82582022-10-0135111310.1186/s10033-022-00783-4Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAWLei Xiao0Ding Fan1Jiankang Huang2School of Materials Science and Engineering, Lanzhou Jiaotong UniversityState Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of TechnologySchool of Materials Science and Engineering, Lanzhou University of TechnologyAbstract A three-dimensional numerical model based on the volume-of-fluid (VOF) method is typically preferred for studying high-current gas metal arc welding (GMAW) metal transfer mechanism and then controlling it. It is informed that the rotating spray transfer is extremely complicated, and some researchers have focused on simplified models without considering the energy conservation to make analysis manageable for the unstable metal transfer process. Using our created numerical model, the metal transfer of high-current GMAW with shielding gas of different conductivities has been studied by analyzing acting forces and fluid flows in the metal liquid column, especially for the contributions of the self-induced electromagnetic force, equivalent volume force of the capillary pressure of the surface tension (Named surface tension force in this work), static arc pressure. It is found that the unbalanced electromagnetic force greatly promotes the metal rotating motion in 500 A metal inert gas (MIG) welding with pure argon shielding gas and it pushes the metal liquid column to rotate. Considering the arc constricting effect in active shielding gas by simply changing the arc conductivity, it is found that the metal liquid column no longer rotates, it turns to swing since the unbalanced electromagnetic force is large enough to break the rotating motion. The calculated results of the metal liquid column deflected angle and rotating/swing frequency agree well with the experiment of high-speed camera observations.https://doi.org/10.1186/s10033-022-00783-4Gas metal arc weldingRotating spray transferThree-dimensional modelElectromagnetic forceSurface tension |
| spellingShingle | Lei Xiao Ding Fan Jiankang Huang Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAW Chinese Journal of Mechanical Engineering Gas metal arc welding Rotating spray transfer Three-dimensional model Electromagnetic force Surface tension |
| title | Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAW |
| title_full | Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAW |
| title_fullStr | Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAW |
| title_full_unstemmed | Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAW |
| title_short | Three-Dimensional Numerical Study on the Metal Rotating Spray Transfer Process of High-Current GMAW |
| title_sort | three dimensional numerical study on the metal rotating spray transfer process of high current gmaw |
| topic | Gas metal arc welding Rotating spray transfer Three-dimensional model Electromagnetic force Surface tension |
| url | https://doi.org/10.1186/s10033-022-00783-4 |
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