Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAW

The oscillating phenomenon of the weld pool has a direct physical correspondence with its penetration state, which has broad application prospects in the monitoring of weld penetration states. This article studied the characteristics of the oscillating phenomenon of the weld pool in short-circuiting...

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Main Authors: Haoxuan Qian, Tao Chen, Songbai Xue
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/13/11/6370
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author Haoxuan Qian
Tao Chen
Songbai Xue
author_facet Haoxuan Qian
Tao Chen
Songbai Xue
author_sort Haoxuan Qian
collection DOAJ
description The oscillating phenomenon of the weld pool has a direct physical correspondence with its penetration state, which has broad application prospects in the monitoring of weld penetration states. This article studied the characteristics of the oscillating phenomenon of the weld pool in short-circuiting gas metal arc welding (S-GMAW) with different penetration states based on a welding high-speed photography system. The results show that the form of the liquid bridge electric explosion impact on the weld pool is “surface impact” in S-GMAW. The oscillation frequency of the weld pool decreases as the size of the weld pool increases. Compared with the partially penetrated weld pool, the boundary conditions of the fully penetrated weld pool had different boundary conditions, resulting in higher oscillation amplitude and lower oscillation frequency. In S-GMAW, no difference in welding voltage signal, caused by the difference in amplitude of the weld pool oscillation with different penetration states, was observed.
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spelling doaj.art-a7a5c8d470954a278748c4f409b4e2022023-11-18T07:31:15ZengMDPI AGApplied Sciences2076-34172023-05-011311637010.3390/app13116370Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAWHaoxuan Qian0Tao Chen1Songbai Xue2School of Materials Science and Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaCollege of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, ChinaThe oscillating phenomenon of the weld pool has a direct physical correspondence with its penetration state, which has broad application prospects in the monitoring of weld penetration states. This article studied the characteristics of the oscillating phenomenon of the weld pool in short-circuiting gas metal arc welding (S-GMAW) with different penetration states based on a welding high-speed photography system. The results show that the form of the liquid bridge electric explosion impact on the weld pool is “surface impact” in S-GMAW. The oscillation frequency of the weld pool decreases as the size of the weld pool increases. Compared with the partially penetrated weld pool, the boundary conditions of the fully penetrated weld pool had different boundary conditions, resulting in higher oscillation amplitude and lower oscillation frequency. In S-GMAW, no difference in welding voltage signal, caused by the difference in amplitude of the weld pool oscillation with different penetration states, was observed.https://www.mdpi.com/2076-3417/13/11/6370short-circuit GMAWweld pooloscillation frequency
spellingShingle Haoxuan Qian
Tao Chen
Songbai Xue
Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAW
Applied Sciences
short-circuit GMAW
weld pool
oscillation frequency
title Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAW
title_full Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAW
title_fullStr Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAW
title_full_unstemmed Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAW
title_short Study on the Oscillating Phenomenon of Welding Pool with Different Penetration States in Short-Circuiting GMAW
title_sort study on the oscillating phenomenon of welding pool with different penetration states in short circuiting gmaw
topic short-circuit GMAW
weld pool
oscillation frequency
url https://www.mdpi.com/2076-3417/13/11/6370
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AT taochen studyontheoscillatingphenomenonofweldingpoolwithdifferentpenetrationstatesinshortcircuitinggmaw
AT songbaixue studyontheoscillatingphenomenonofweldingpoolwithdifferentpenetrationstatesinshortcircuitinggmaw