Residual stress and microstructure properties by trailing cooling of argon gas of wire and arc additive manufacturing

doi:10.1016/j.jmapro.2022.03.007

	Residual stress and microstructure properties by trailing cooling of argon gas of wire and arc additive manufacturing
	Fan, Ding 1,2; Gao, Mingjiang 1,2; Li, Chunling 3; Huang, Jiankang 1,2; Yu, Xiaoquan 1,2
刊名	Journal of Manufacturing Processes
	2022-05-01
卷号	77 页码:32-39
关键词	3D printers Additives Argon Microstructure Residual stresses Tensile strength Argon gas Coarse grains Deposited layer Deposited metal Heat input Manufacturing methods Microstructures properties Stress field Trailing cooling of argon gas Wire and arc additive manufacturing
ISSN号	1526-6125
DOI	10.1016/j.jmapro.2022.03.007
英文摘要	To reduce the large residual stress and refine the coarse grains of the deposited layers caused by excessive heat input in the wire and arc additive manufacturing (WAAM), a trailing cooling of argon gas-based WAAM method was proposed. A finite element model of stress field in WAAM with and without cooling source is established. The influence of the cooled gas on the stress and deformation of the additively manufactured parts is analyzed in detail. The results show that, compared with additive manufacturing without cold source, the application of cold source can effectively reduce the longitudinal stress level in the deposited layer area and improve the dimensional accuracy of the deposited layers under the condition of cold source additive manufacturing, the maximum joint displacement is reduced by 24%. Analysis of the microstructure and properties of the deposited layers shows that the cooled trailing gas can refine the grain size of the deposited metal and improve the tensile strength and elongation of the deposited metal, which may be increased by 10% and 8%, respectively. © 2022 The Society of Manufacturing Engineers
WOS研究方向	Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000790355200003
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/157968]
专题	材料科学与工程学院机电工程学院
作者单位	1.Materials Science and Engineering College, Lanzhou University of Technology, Lanzhou; 730050, China; 2.State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China; 3.School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Fan, Ding,Gao, Mingjiang,Li, Chunling,et al. Residual stress and microstructure properties by trailing cooling of argon gas of wire and arc additive manufacturing[J]. Journal of Manufacturing Processes,2022,77:32-39.
APA	Fan, Ding,Gao, Mingjiang,Li, Chunling,Huang, Jiankang,&Yu, Xiaoquan.(2022).Residual stress and microstructure properties by trailing cooling of argon gas of wire and arc additive manufacturing.Journal of Manufacturing Processes,77,32-39.
MLA	Fan, Ding,et al."Residual stress and microstructure properties by trailing cooling of argon gas of wire and arc additive manufacturing".Journal of Manufacturing Processes 77(2022):32-39.