Types of spatter and their features and formation mechanisms in laser powder bed fusion additive manufacturing process

被引：138
|
作者：
Young, Zachary A. [1 ,2 ]
Guo, Qilin [2 ,3 ]
Parab, Niranjan D. [4 ]
Zhao, Cang [4 ]
Qu, Minglei [2 ,3 ]
Escano, Luis, I [2 ,3 ]
Fezzaa, Kamel [4 ]
Everhart, Wes [5 ]
Sun, Tao [6 ]
Chen, Lianyi [1 ]
机构：
[1] Missouri Univ Sci & Technol, Dept Mech & Aerosp Engn, Rolla, MO 65409 USA
[2] Univ Wisconsin, Dept Mech Engn, Madison, WI 53706 USA
[3] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA
[4] Argonne Natl Lab, Xray Sci Div, Adv Photon Source, Lemont, IL 60439 USA
[5] US DOE, Kansas City Natl Secur Campus, Kansas City, MO 64147 USA
[6] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA
来源：
ADDITIVE MANUFACTURING | 2020年 / 36卷
基金：
美国国家科学基金会;
关键词：
Spatter; Laser powder bed fusion; Additive manufacturing; High-speed imaging; Synchrotron x-ray; 316L STAINLESS-STEEL; METALLIC COMPONENTS; GENERATION; PARAMETERS; BEHAVIOR; DENUDATION; PARTICLES; PRESSURE; DYNAMICS; PARTS;
D O I：
10.1016/j.addma.2020.101438
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Spatter causes defect formation, powder redistribution and contamination in laser powder bed fusion (LPBF) additive manufacturing process. It is critical to distinguish different types of spatter and understand their features and formation mechanisms. This work reveals the features and formation mechanisms of five unique types of spatter during the LPBF process by in-situ high-speed, high-energy x-ray imaging. Spatters observed during LPBF testing are quantified by their speed, size, and direction. Distinct quantifiable characteristics for each type of spatter are identified. Effects of the laser power, scan speed, and ambient pressure on spatter formation and features are unraveled. A spatter formation map for AlSi10Mg alloy is constructed.
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页数：9
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