Effect of electric parameters on weld pool dynamic behavior in GTAW

doi:10.1016/j.jmapro.2022.03.028

CORC > 兰州理工大学 > 兰州理工大学 > 省部共建有色金属先进加工与再利用国家重点实验室

	Effect of electric parameters on weld pool dynamic behavior in GTAW
	Zhang, Gang 1,2; Shi, Yu 1; Zhu, Ming 1; Fan, Ding 1
刊名	JOURNAL OF MANUFACTURING PROCESSES
	2022-05-01
卷号	77 页码:369-379
关键词	GTAW Weld pool dynamic Electric parameters Human welder's reaction Intelligent welding
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2022.03.028
英文摘要	Assembling robot with human welder's intelligence is a good way to rapidly realize intelligent welding manufacturing. How to finely and accurately control dynamic weld pool, however, is a key issue for the intelligent robotic welding. To this end, an improved experimental system is built to simultaneously sense the weld pool dynamics and the electric parameters. The ROI signal of reflection laser images was obtained by a novel image processing algorithm, and the correlation between the weld penetration and the ROI signal was further established. The human welder's responses on the weld pool were detailly analyzed by the experiments with varying electric parameter. The effect of the electric parameters on the weld pool equilibrium was also studied by the established model which included the latent heat of phase change. The results indicate that the welding current, welding speed and arc length mainly changes the heat input to the weld pool, and easily loses its stability, resulting in a lack of penetration or excessive penetration. The fastest change of the weld pool occurs on the adjustment of the welding current, and the weakest change of the weld penetration happens in the adjustment of the arc length. Simulations ensure that the new equilibrium of the weld pool can be achieved within 1.8 s via adjusting the welding current, within 2.1 s via adjusting the welding speed, within 8 s via adjusting the arc length, respectively, which might be used to optimize the intelligentized controller and improve the accurate of the human welder's intelligence model.
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000790944300005
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158661]
专题	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
作者单位	1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Peoples R China; 2.Beijing Inst Petro Chem Technol, Optomechatron Equipment Technol Beijing Area Major, Beijing 102617, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Gang,Shi, Yu,Zhu, Ming,et al. Effect of electric parameters on weld pool dynamic behavior in GTAW[J]. JOURNAL OF MANUFACTURING PROCESSES,2022,77:369-379.
APA	Zhang, Gang,Shi, Yu,Zhu, Ming,&Fan, Ding.(2022).Effect of electric parameters on weld pool dynamic behavior in GTAW.JOURNAL OF MANUFACTURING PROCESSES,77,369-379.
MLA	Zhang, Gang,et al."Effect of electric parameters on weld pool dynamic behavior in GTAW".JOURNAL OF MANUFACTURING PROCESSES 77(2022):369-379.