Microstructure and Mechanical Properties of Fiber Laser Welding of Aluminum Alloy with Beam Oscillation

被引：18
|
作者：
Pang, Xiaobing [1 ]
Dai, Jiahui [2 ]
Chen, Shun [2 ]
Zhang, Mingjun [2 ]
机构：
[1] Changsha Univ, Coll Mech & Elect Engn, Changsha 410022, Peoples R China
[2] Changsha Univ Sci & Technol, Key Lab High Performance Intelligent Mfg Mech Equ, Changsha 410114, Peoples R China
来源：
APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 23期
基金：
中国国家自然科学基金;
关键词：
fiber laser welding; aluminum alloy; beam oscillation; microstructure; mechanical properties; MORPHOLOGY; WELDABILITY; POWDERS; JOINT;
D O I：
10.3390/app9235096
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Laser welding with beam oscillation is applied to join aluminum alloy plates in butt configuration. The effects of beam oscillating patterns on the quality of welds are compared and analyzed. The results indicate that beam oscillation can improve the weld formation and microstructure of butt joints. The circular oscillating weld has the features of fine grain and uniformly dispersed dendrites in the strengthening phase, and the porosity inhibitory effect of circular oscillation is the most obvious. In addition, beam oscillation has few effects on the tensile strength of welds, but exerts an influence on the elongation of welds.
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页数：11
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