Analysis and improvement of underwater wet welding process stability with static mechanical constraint support

doi:10.1016/j.jmapro.2018.06.007

CORC > 金属研究所 > 中国科学院金属研究所

	Analysis and improvement of underwater wet welding process stability with static mechanical constraint support
	Wang, JF ; Sun, QJ ; Jiang, YL ; Zhang, T 1; Ma, JK ; Feng, JC
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2018-08-01
卷号	34 页码:238-250
关键词	Underwater wet welding Mechanical constraint Arc voltage Arc stability Weld morphology
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2018.06.007
英文摘要	A 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.
学科主题	Engineering, Manufacturing
语种	英语
WOS记录号	WOS:000442172000024
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/80042]
专题	金属研究所_中国科学院金属研究所
作者单位	1.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
推荐引用方式 GB/T 7714	Wang, JF,Sun, QJ,Jiang, YL,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, JF,Sun, QJ,Jiang, YL,Zhang, T,Ma, JK,&Feng, JC.(2018).Analysis and improvement of underwater wet welding process stability with static mechanical constraint support.JOURNAL OF MANUFACTURING PROCESSES,34,238-250.
MLA	Wang, JF,et al."Analysis and improvement of underwater wet welding process stability with static mechanical constraint support".JOURNAL OF MANUFACTURING PROCESSES 34(2018):238-250.