Institutional Repository of Coll Mat Sci & Engn
Monitoring weld pool oscillation using reflected laser pattern in gas tungsten arc welding | |
Li, Chunkai1,2; Shi, Yu1; Gu, YuFen1; Yuan, Peng2 | |
2018-05 | |
发表期刊 | JOURNAL OF MATERIALS PROCESSING TECHNOLOGY |
ISSN | 0924-0136 |
卷号 | 255页码:876-885 |
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. |
关键词 | Weld pool oscillation Single laser vision method Image centroid Weld penetration |
DOI | 10.1016/j.jmatprotec.2018.01.037 |
收录类别 | SCI ; SCIE |
语种 | 英语 |
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 |
WOS类目 | Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary |
WOS记录号 | WOS:000431837700090 |
出版者 | ELSEVIER SCIENCE SA |
EI入藏号 | 20180704787923 |
EI主题词 | Welds |
EI分类号 | 538.2 Welding - 538.2.1 Welding Processes - 543.5 Tungsten and Alloys - 631.1 Fluid Flow, General |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/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 |
第一作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室; 兰州理工大学 |
通讯作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
第一作者的第一单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
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. |
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