中国激光, 2017, 44 (12): 1202008, 网络出版: 2017-12-11  

微弧氧化铝合金与高铝超薄玻璃的激光焊接性能及机理

Performance and Mechanism of Laser Welding of Micro-Arc-Oxidation Aluminum Alloy and High-Alumina Ultrathin Glass
作者单位
1 西南林业大学机械与交通学院, 云南 昆明 650224
2 苏州大学机电工程学院激光加工中心, 江苏 苏州 215021
3 中国科学院金属研究所金属腐蚀与防护实验室, 辽宁 沈阳 110016
摘要
利用微弧氧化工艺, 在铝合金表面制备了不同厚度的氧化涂层, 对微弧氧化铝合金和高铝超薄玻璃进行了激光透射焊接。研究了微弧氧化涂层厚度对焊接件的剪切力、焊缝形貌及焊缝结合界面的影响, 并分析了焊缝形成机理。研究结果表明, 微弧氧化涂层能够有效地充当焊接件的激光能量吸收层和缓冲层, 焊缝处形成的混合镶嵌结构是实现材料连接的主要原因; 微弧氧化涂层越薄, 焊接件的剪切力越大。
Abstract
By the micro-arc-oxidation process, oxide coatings with different thicknesses are prepared on aluminum alloy surfaces, and the laser transmission welding of the micro-arc-oxidation aluminum alloy and the high-aluminum ultrathin glass is conducted. The effect of micro-arc-oxidation coating thickness on the shear force, the weld morphology and the weld joint interface is investigated and the formation mechanism of welds is also analyzed. The results show that the micro-arc-oxidation coating can effectively act as the laser-energy-absorbing layer and the buffer layer of weldments, and the main reason for realizing the connection between these two materials lies in the mixed mosaic structure formed within welds. The smaller the thickness of the micro-arc-oxidation coating is, the greater the shear force of weldments is.
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邱兆岭, 陈长军, 张敏, 陈文刚, 张伟. 微弧氧化铝合金与高铝超薄玻璃的激光焊接性能及机理[J]. 中国激光, 2017, 44(12): 1202008. Qiu Zhaoling, Chen Changjun, Zhang Min, Chen Wengang, Zhang Wei. Performance and Mechanism of Laser Welding of Micro-Arc-Oxidation Aluminum Alloy and High-Alumina Ultrathin Glass[J]. Chinese Journal of Lasers, 2017, 44(12): 1202008.

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