期刊
APPLIED SCIENCES-BASEL
卷 9, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/app9235096
关键词
fiber laser welding; aluminum alloy; beam oscillation; microstructure; mechanical properties
类别
资金
- National Natural Science Foundation of China [51605045]
- Natural Science Foundation of Hunan Province of China [2018JJ2437]
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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