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Analysis and improvement of underwater wet welding process stability with static mechanical constraint support
Wang, Jianfeng1,2; Sun, Qingjie1,2; Jiang, Yunlu3; Zhang, Tao2; Ma, Jiangkun2; Feng, Jicai1,2
Corresponding AuthorSun, Qingjie(qjsun@hit.edu.cn)
2018-08-01
Source PublicationJOURNAL OF MANUFACTURING PROCESSES
ISSN1526-6125
Volume34Pages:238-250
AbstractA process variant of underwater wet welding (UWW), i.e., mechanical constraint-assisted UWW process, was developed. Through the visual sensing of arc bubble and welding electrical signals, the optimum parameters of mechanical constraint system were determined. Variations of arc stability, arc burning process, and weld morphology with arc voltage were investigated under the same mechanical constraint condition. Results indicated that the coefficients of variation for the two processes initially dipped to a minimum and then gradually increased to a higher value with increasing arc voltage, but the change rate of variation coefficient in UWW was much more pronounced than that in mechanical constraint-assisted UWW (MC-UWW). When the arc voltage was lower, the proportion of short circuiting process was so high. Thus, there was room for further reduction by mechanical constraint. But the further reduction room became still effective when the arc voltage was larger because the proportion of arc extinction process was already large enough. Weld morphology results showed that the increment of weld penetration decreased from 0.91 mm to 0.18 mm with the increase of arc voltage when mechanical constraint was applied. In addition, the increment trend was very significant when arc voltage was within the range of 20 V to 28 V. For the welding conditions in this study, a suitable voltage range in conjunction with optimum mechanical constraint condition can be determined to achieve a more stable welding process in MC-UWW.
KeywordUnderwater wet welding Mechanical constraint Arc voltage Arc stability Weld morphology
Funding OrganizationNational Natural Science Foundation of China ; National Key Research and Development Program of China
DOI10.1016/j.jmapro.2018.06.007
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51475104] ; National Natural Science Foundation of China[51435004] ; National Key Research and Development Program of China[2016YFB0300602]
WOS Research AreaEngineering
WOS SubjectEngineering, Manufacturing
WOS IDWOS:000442172000024
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129170
Collection中国科学院金属研究所
Corresponding AuthorSun, Qingjie
Affiliation1.Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Heilongjiang, Peoples R China
2.Harbin Inst Technol Weihai, Shandong Prov Key Lab Special Welding Technol, Weihai 264209, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Wang, Jianfeng,Sun, Qingjie,Jiang, Yunlu,et al. Analysis and improvement of underwater wet welding process stability with static mechanical constraint support[J]. JOURNAL OF MANUFACTURING PROCESSES,2018,34:238-250.
APA Wang, Jianfeng,Sun, Qingjie,Jiang, Yunlu,Zhang, Tao,Ma, Jiangkun,&Feng, Jicai.(2018).Analysis and improvement of underwater wet welding process stability with static mechanical constraint support.JOURNAL OF MANUFACTURING PROCESSES,34,238-250.
MLA Wang, Jianfeng,et al."Analysis and improvement of underwater wet welding process stability with static mechanical constraint support".JOURNAL OF MANUFACTURING PROCESSES 34(2018):238-250.
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