Single-track geometrical characteristics under different energy input and mass addition in coaxial laser cladding

doi:10.1007/s40436-023-00478-6

CORC > 力学研究所 > 中国科学院力学研究所 > 宽域飞行工程科学与应用中心

	Single-track geometrical characteristics under different energy input and mass addition in coaxial laser cladding
	Bian, Yan-Hua 1,2,4; Tian, Chong-Xin 2,4; Chen, Bo 2,4; Dong, Bin-Xin 2,4; Li, Shao-Xia 2,4; Li, Zhi-Yong 2,4; Nan, Yang-Rui 1; He, Xiu-Li 2,3,4; Yu, Gang 2,3,4
刊名	ADVANCES IN MANUFACTURING
	2024-04-02
页码	22
关键词	Laser cladding Inconel 718 Clad geometry Linear regression analysis Powder concentration
ISSN号	2095-3127
DOI	10.1007/s40436-023-00478-6
通讯作者	He, Xiu-Li(xlhe@imech.ac.cn) ; Yu, Gang(gyu@imech.ac.cn)
英文摘要	To provide a broad processing window with a high deposition rate, a comprehensive analysis of single-track geometrical characteristics over a wide range of laser energies and mass inputs in laser cladding is necessary. The formation of a single cladding track of Inconel 718 on a substrate by coaxial laser cladding, with a wide range of laser power from 1 200 W to 3 900 W and a powder feeding rate from 5 g/min to 35 g/min, was studied from both theoretical and experimental points of view. A quantitative model of powder concentration distribution was developed based on the powder transport morphology obtained by high-speed photography. Linear regression models were established between nine geometrical characteristics and the combined process parameters of laser power and powder feeding rate, written as P alpha F beta, to quantitatively analyze the geometrical characteristics of the clad. These were confirmed by large correlation coefficients and analysis of residuals. From the findings we deduced that more energy input enhanced the outward direction of Marangoni convection, leading to the melt pool undergoing evolution from shallow dilution and flat dilution to fluctuating dilution. An almost linear relationship was found between the cladding width, W, and the laser power, indicating that laser energy accumulation was a major factor in the evolution of W. The increase ratio of the cladding height, hc, ranged from 640% to 360% along with an increase in the powder feeding rate, implying that the evolution of hc, was dominated by the powder feeding rate. The total area of the cross-section, A; the area of the clad, Ac; the area of the molten substrate, Am; the total height of the cross-section, H; the penetration depth, hm; the dilution ratio, D; and the wetting angle, theta, were determined by a complex coupling of energy input and mass accumulation, and they are proportional to P0.5F0.2, P0.2F0.5, P0.5/F0.2, P0.3F, P0.5/F0.2, P0.2/F0.2, and P0.2/F0.2, respectively. This research aims to provide general knowledge on the influence of energy input and mass addition on the geometrical characteristics of the clad and its related influence mechanism. Such information could provide a reference and basis for promoting the practical application of laser cladding technology.
资助项目	the National Natural Science Foundation of China[11502269] ; the National Natural Science Foundation of China[11672304] ; National Natural Science Foundation of China[Z181100003818015] ; Beijing Municipal Commission of Science and Technology
WOS关键词	EMPIRICAL-STATISTICAL MODEL ; POWDER FLOW ; PREDICTION ; BEHAVIOR ; ALLOY ; METAL ; WELD ; MICROSTRUCTURE ; SOLIDIFICATION ; OPTIMIZATION
WOS研究方向	Engineering ; Materials Science
语种	英语
WOS记录号	WOS:001195755500001
资助机构	the National Natural Science Foundation of China ; National Natural Science Foundation of China ; Beijing Municipal Commission of Science and Technology
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94830]
专题	宽域飞行工程科学与应用中心
通讯作者	He, Xiu-Li; Yu, Gang
作者单位	1.Beijing City Univ, Res Inst 3D Printing, Beijing 100083, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Bian, Yan-Hua,Tian, Chong-Xin,Chen, Bo,et al. Single-track geometrical characteristics under different energy input and mass addition in coaxial laser cladding[J]. ADVANCES IN MANUFACTURING,2024:22.
APA	Bian, Yan-Hua.,Tian, Chong-Xin.,Chen, Bo.,Dong, Bin-Xin.,Li, Shao-Xia.,...&Yu, Gang.(2024).Single-track geometrical characteristics under different energy input and mass addition in coaxial laser cladding.ADVANCES IN MANUFACTURING,22.
MLA	Bian, Yan-Hua,et al."Single-track geometrical characteristics under different energy input and mass addition in coaxial laser cladding".ADVANCES IN MANUFACTURING (2024):22.