Monitoring weld pool oscillation using reflected laser pattern in gas tungsten arc welding

doi:10.1016/j.jmatprotec.2018.01.037

	Monitoring weld pool oscillation using reflected laser pattern in gas tungsten arc welding
	Li, Chunkai 1,2; Shi, Yu 1; Gu, YuFen 1; Yuan, Peng 2
刊名	JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
	2018-05
卷号	255 页码:876-885
关键词	Weld pool oscillation Single laser vision method Image centroid Weld penetration
ISSN号	0924-0136
DOI	10.1016/j.jmatprotec.2018.01.037
英文摘要	A single laser vision method was proposed to carry out real-time sensing of the oscillation signal from the reflected laser pattern. A robust algorithm based on the image centroid of reflected laser pattern was developed to extract the oscillation frequency of weld pool and fluctuation amplitude of centroids of laser pattern Delta H-cen. The correlation between fluctuation amplitude of centroids of laser pattern Delta H-cen and oscillation amplitude of weld pool surface Delta h(act) were simulated based on the law of reflection. Several experiments were conducted in stationary and traveling welding processes with different penetration status. The oscillation frequency and Delta H-cen were extracted. An abrupt transition mode of oscillation frequency and Delta h(act) exists from partial to full penetration status in stationary welding process. By contrast, an abrupt transition occurs in zlhact in the case of traveling welding process. Two transition modes of oscillation frequency, continuous and abrupt change mode, occurred with different welding speeds, which correlated with the oscillation behavior of weld pool surface.
资助项目	National Natural Science Foundation of China[51765037] ; Plan for Basic Research Creative Group of Gansu Province[17JR5RA107] ; Project for Collaborative Innovation Team of Universities in Gansu Province[2017C-07]
WOS研究方向	Engineering ; Materials Science
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000431837700090
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/32652]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Shi, Yu
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Minist Educ, Key Lab Nonferrous Met Alloys & Proc, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Li, Chunkai,Shi, Yu,Gu, YuFen,et al. Monitoring weld pool oscillation using reflected laser pattern in gas tungsten arc welding[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2018,255:876-885.
APA	Li, Chunkai,Shi, Yu,Gu, YuFen,&Yuan, Peng.(2018).Monitoring weld pool oscillation using reflected laser pattern in gas tungsten arc welding.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,255,876-885.
MLA	Li, Chunkai,et al."Monitoring weld pool oscillation using reflected laser pattern in gas tungsten arc welding".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 255(2018):876-885.