中国激光, 2019, 46 (2): 0202003, 网络出版: 2019-05-09
焊前激光预处理的铝合金表面氧含量的分布及影响 
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Distribution and Influence of Oxygen Content of Laser Pretreated Aluminum Alloy Surface Before Welding
图 & 表
图 4. 单次激光清洗下铝合金表面的氧含量
Fig. 4. Oxygen content of aluminum alloy surface at single laser cleaning
图 5. 多次激光清洗下铝合金表面的氧含量
Fig. 5. Oxygen content of aluminum alloy surface at multiple laser cleaning
图 6. 不同功率激光多次清洗后6061铝合金的表面形貌及面能谱分析。(a) P=10 W,N=7;(b) P=15 W,N=5;(c) P=20 W,N=3
Fig. 6. Surface morphology (SEM) and surface energy spectrum analysis (EDS) of 6061 aluminum alloy surface after multiple laser cleaning. (a) P=10 W, N=7; (b) P=15 W, N=5; (c) P=20 W, N=3
图 7. P=15 W,N=5时的线扫描能谱分析结果。(a)表面形貌;(b)各元素含量沿路径E—F的变化
Fig. 7. Line scan energy spectrum analysis (P=15 W, N=5). (a) Surface morphology; (b) oxygen, magnesium, alluminum elements change curves along the path E—F
图 8. 经不同功率的激光多次清洗后6061铝合金的表面形貌及氧元素面分布。(a) P=10 W,N=7;(b) P=15 W,N=5;(c) P=20 W,N=3
Fig. 8. Surface morphology (SEM) and surface distribution of oxygen of 6061 aluminum alloy after multiple laser cleaning with different laser powers. (a) P=10 W, N=7; (b) P=15 W, N=5; (c) P=20 W, N=3
图 9. 当η=-5%时,单次激光清洗下铝合金表面的氧含量
Fig. 9. Oxygen content of aluminum alloy surface at single laser cleaning with overlap rate of -5%
图 10. 当η=5%时,不同参数下清洗后铝合金表面的氧含量。(a) P=10 W;(b) P=15 W
Fig. 10. Oxygen content of aluminum alloy surface after cleaning with different parameters and overlap ratio of 5%. (a) P=10 W; (b) P=15 W
图 11. X射线探伤机的探测结果。(a)表面未预处理的铝合金的焊缝;(b)表面氧质量分数为16.2%的铝合金的焊缝;(c)表面氧质量分数为9.56%的铝合金的焊缝;(d)表面氧质量分数为3.23%的铝合金的焊缝
Fig. 11. Detection results of X-ray non-destructive detector. (a) Weld of the aluminum alloy without pretreatment; (b) weld of the aluminum alloy with oxygen mass fraction of 16.2%; (c) weld of the aluminum alloy with oxygen mass fraction of 9.56%; (d) weld of the aluminum alloy with oxygen mass fraction of 3.23%
图 12. 焊缝横截面形貌及局部放大图。(a)氧质量分数为16.2%的铝合金的焊缝;(b)氧质量分数为9.56%的铝合金的焊缝;(c)氧质量分数为3.23%的铝合金的焊缝
Fig. 12. Micrographs of cross-section of weld and corresponding to local enlarged detail. (a) Weld of the aluminum alloy with oxygen mass fraction of 16.2%;(b) weld of the aluminum alloy with oxygen mass fraction of 9.56%; (c) weld of the aluminum alloy with oxygen mass fraction of 3.23%
表 16061铝合金的主要化学成分[14]
Table1. Main chemical composition of 6061 aluminum alloy[14]
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佟艳群, 张昂, 黄建宇, 李瑞峰, 周建忠, 陈小明, 任旭东. 焊前激光预处理的铝合金表面氧含量的分布及影响[J]. 中国激光, 2019, 46(2): 0202003. Yanqun Tong, Ang Zhang, Jianyu Huang, Ruifeng Li, Jianzhong Zhou, Xiaoming Chen, Xudong Ren. Distribution and Influence of Oxygen Content of Laser Pretreated Aluminum Alloy Surface Before Welding[J]. Chinese Journal of Lasers, 2019, 46(2): 0202003.
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