Morphology and Phase Structure Analysis of Spatter and Fume in High Current GMAW Welding

doi:10.11896/cldb.18070013

	Morphology and Phase Structure Analysis of Spatter and Fume in High Current GMAW Welding
	Fan, Ding 1,2; Yang, Wenyan 1; Xiao, Lei 1
刊名	Cailiao Daobao/Materials Reports
	2019-08-25
卷号	33 期号:8 页码:2729-2733
关键词	Alloying elements Drops Evaporation Gas metal arc welding Liquid metals Low carbon steel Manganese alloys Metals Morphology Particle size Particle size analysis Phase structure Respiratory system Smoke Welds Gas metal arc welding (GMAW) High current densities High speed gmaw Particle shape Structure analysis Swirling jets Upper respiratory tract Welding fumes
ISSN号	1005023X
DOI	10.11896/cldb.18070013
英文摘要	In the process of gas metal arc welding (GMAW), the arc is unstable and the formation of the weld becomes worse when the droplet transfer is transformed into a rotating jet. A process tests were carried out on Q235 low carbon steel to explore the morphology and phase structure of the spatter and fume generated during welding. The results showed that the molten metal at high temperature is thrown out and atomized, and the droplets were spheroidized and solidified rapidly during the flight. The surface of the spattered particles exhibited a special appearance, and the particles were mainly composed of oxide. When the arc burned, the spot with high current density formed at the end of the welding wire, and the temperature at the spot was quite high. With the increase of welding current, the amount of metal evaporation increased. Metal evaporation takes away most of the Si, Mn and other alloy elements in the welding wire. While Si and Mn are all effective deoxidizing elements, therefore, the alloying elements was removed by metal evaporation, which affected the content of O, and further exerted negative effect on the weld performance. The particle size of smoke and dust to the mode of droplet transfer, ranging from 10-1 μm to 102 μm. The majority of particle possessed the size of 10 μm to 60 μm, which could enter the lungs through the upper respiratory tract, and would do harm to the respiratory system and the nervous system of the human body. © 2019, Materials Review Magazine. All right reserved.
语种	中文
出版者	Cailiao Daobaoshe/ Materials Review
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/113917]
专题	材料科学与工程学院
作者单位	1.School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Advanced Processing and Reuse of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Fan, Ding,Yang, Wenyan,Xiao, Lei. Morphology and Phase Structure Analysis of Spatter and Fume in High Current GMAW Welding[J]. Cailiao Daobao/Materials Reports,2019,33(8):2729-2733.
APA	Fan, Ding,Yang, Wenyan,&Xiao, Lei.(2019).Morphology and Phase Structure Analysis of Spatter and Fume in High Current GMAW Welding.Cailiao Daobao/Materials Reports,33(8),2729-2733.
MLA	Fan, Ding,et al."Morphology and Phase Structure Analysis of Spatter and Fume in High Current GMAW Welding".Cailiao Daobao/Materials Reports 33.8(2019):2729-2733.