Numerical simulation of periodic fluctuation in electron beam welding pool
In order to further explore the mechanism during electron beam welding, electron beam welding was carried out on a 10mm 2219 aluminum alloy. A three-dimensional electron beam welding model in which volume of fluid (VOF) was combined with dynamic heat source was established using numerical software F...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Journal of Materials Engineering
2019-09-01
|
| Series: | Cailiao gongcheng |
| Subjects: | |
| Online Access: | http://jme.biam.ac.cn/CN/Y2019/V47/I9/78 |
| _version_ | 1828076212631633920 |
|---|---|
| author | YANG Zi-you FANG Yu-chao HE Jing-shan |
| author_facet | YANG Zi-you FANG Yu-chao HE Jing-shan |
| author_sort | YANG Zi-you |
| collection | DOAJ |
| description | In order to further explore the mechanism during electron beam welding, electron beam welding was carried out on a 10mm 2219 aluminum alloy. A three-dimensional electron beam welding model in which volume of fluid (VOF) was combined with dynamic heat source was established using numerical software Fluent to simulate the coupling between keyhole and molten pool. The process and formation of vortex in molten pool were analyzed, the interaction between electron beam and keyhole was also identified and discussed. The results show that the molten pool is divided into three parts through the analysis of liquid metals. The liquid metal in zone Ⅰ maintains the stability of the volume of the molten pool. The surface of the molten pool is enlarged by vortex in zone Ⅱ. Vortex in zone Ⅲ plays an important role in causing the keyhole to collapse. The coupling analysis of electron beam and keyhole wall shows that the electron beam is not uniformly distributed on the keyhole wall,which results in a certain hysteresis at the bottom of keyhole. |
| first_indexed | 2024-04-11T02:11:23Z |
| format | Article |
| id | doaj.art-15d74a9cb6dc4711a2168c6641169a46 |
| institution | Directory Open Access Journal |
| issn | 1001-4381 1001-4381 |
| language | zho |
| last_indexed | 2024-04-11T02:11:23Z |
| publishDate | 2019-09-01 |
| publisher | Journal of Materials Engineering |
| record_format | Article |
| series | Cailiao gongcheng |
| spelling | doaj.art-15d74a9cb6dc4711a2168c6641169a462023-01-03T01:58:08ZzhoJournal of Materials EngineeringCailiao gongcheng1001-43811001-43812019-09-01479788310.11868/j.issn.1001-4381.2018.000573201909000573Numerical simulation of periodic fluctuation in electron beam welding poolYANG Zi-you0FANG Yu-chao1HE Jing-shan2Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, ChinaLaboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, ChinaLaboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, ChinaIn order to further explore the mechanism during electron beam welding, electron beam welding was carried out on a 10mm 2219 aluminum alloy. A three-dimensional electron beam welding model in which volume of fluid (VOF) was combined with dynamic heat source was established using numerical software Fluent to simulate the coupling between keyhole and molten pool. The process and formation of vortex in molten pool were analyzed, the interaction between electron beam and keyhole was also identified and discussed. The results show that the molten pool is divided into three parts through the analysis of liquid metals. The liquid metal in zone Ⅰ maintains the stability of the volume of the molten pool. The surface of the molten pool is enlarged by vortex in zone Ⅱ. Vortex in zone Ⅲ plays an important role in causing the keyhole to collapse. The coupling analysis of electron beam and keyhole wall shows that the electron beam is not uniformly distributed on the keyhole wall,which results in a certain hysteresis at the bottom of keyhole.http://jme.biam.ac.cn/CN/Y2019/V47/I9/78electron beam weldingmolten pool behaviourvortexperiodic fluctuationheat source-keyhole coupling |
| spellingShingle | YANG Zi-you FANG Yu-chao HE Jing-shan Numerical simulation of periodic fluctuation in electron beam welding pool Cailiao gongcheng electron beam welding molten pool behaviour vortex periodic fluctuation heat source-keyhole coupling |
| title | Numerical simulation of periodic fluctuation in electron beam welding pool |
| title_full | Numerical simulation of periodic fluctuation in electron beam welding pool |
| title_fullStr | Numerical simulation of periodic fluctuation in electron beam welding pool |
| title_full_unstemmed | Numerical simulation of periodic fluctuation in electron beam welding pool |
| title_short | Numerical simulation of periodic fluctuation in electron beam welding pool |
| title_sort | numerical simulation of periodic fluctuation in electron beam welding pool |
| topic | electron beam welding molten pool behaviour vortex periodic fluctuation heat source-keyhole coupling |
| url | http://jme.biam.ac.cn/CN/Y2019/V47/I9/78 |
| work_keys_str_mv | AT yangziyou numericalsimulationofperiodicfluctuationinelectronbeamweldingpool AT fangyuchao numericalsimulationofperiodicfluctuationinelectronbeamweldingpool AT hejingshan numericalsimulationofperiodicfluctuationinelectronbeamweldingpool |