The Mechanism of Effect of Flux Bands on The Arc Behavior in Flux Bands Constricting Arc Welding Process
Wang, Lei1,2; Qiao, Jisen1,2; Chen, Jianhong1,2
2020-04
Source PublicationMATERIALS
Volume13Issue:7
AbstractA new welding method, flux bands constricting arc (FBCA) welding, is proposed to compensate for the shortage of insufficient weld width of laser welding T-joints in high steel sandwich panels. The arc behavior (arc burning position, arc shape, arc heat, and arc stability) before and after sticking the flux bands (GMAW and FBCA welding) to the ultra-narrow gap groove was tested. Results indicate that flux bands have solid-wall constricting effect (SWCE) and thermo-compression effect (TCE) on the arc and self-producing slag and gas function in FBCA welding. In ultra-narrow gap groove, the arc burning position climbing up phenomenon (APCP) occurs without flux bands. The SWCE of flux bands on the arc effectively suppresses the APCP because of the insulation of flux bands. In the FBCA welding process, the effective heating area of the arc is increased by at least 5 mm(2) compared with that in GMAW. When the groove gap decreases, flux bands not only compress the arc from an inverted bell shape to a rectangular shape, but also make the 660 degrees C isotherm on the core-plate to increase from 3 mm to 8 mm. In the end, the proportion of unstable arc burning time is reduced by 86.85%, the fluctuation of arc voltage and welding current are also significantly reduced by the flux bands because of their SWCE on the arc.
Keywordflux bands constricting arc ultra-narrow gap welding arc behavior arc stability T-joint weld formation
DOI10.3390/ma13071652
Indexed BySCI
Language英语
Funding ProjectNATIONAL NATURAL SCIENCE FOUNDATION OF CHINA[51665033] ; GANSU PROVINCIAL SCIENCE AND TECHNOLOGY DEPARTMENT[18CX6JA025]
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000529875600170
PublisherMDPI
Citation statistics
Cited Times [WOS]:0   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/64183
Collection省部共建有色金属先进加工与再利用国家重点实验室
材料科学与工程学院
Corresponding AuthorQiao, Jisen
Affiliation1.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Peoples R China
2.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China
First Author AffilicationColl Mat Sci & Engn;  State Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
Corresponding Author AffilicationColl Mat Sci & Engn;  State Key Laboratory Of Gansu Advanced Non-Ferrous Metal Materials
First Signature AffilicationColl Mat Sci & Engn
Recommended Citation
GB/T 7714
Wang, Lei,Qiao, Jisen,Chen, Jianhong. The Mechanism of Effect of Flux Bands on The Arc Behavior in Flux Bands Constricting Arc Welding Process[J]. MATERIALS,2020,13(7).
APA Wang, Lei,Qiao, Jisen,&Chen, Jianhong.(2020).The Mechanism of Effect of Flux Bands on The Arc Behavior in Flux Bands Constricting Arc Welding Process.MATERIALS,13(7).
MLA Wang, Lei,et al."The Mechanism of Effect of Flux Bands on The Arc Behavior in Flux Bands Constricting Arc Welding Process".MATERIALS 13.7(2020).
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