纳秒激光去除铝合金表面漆层的工艺研究  

Research on nanosecond laser de-painting process of aluminum alloy surface

作　　者：车亚龙 华希俊[1] 王康 孙义皓 孙瑜 华逸舟 汤发全[1] CHE Yalong;HUA Xijun;WANG Kang;SUN Yihao;SUN Yu;HUA Yizhou;TANG Faquan(Department of Mechanical Design,Manufacturing and Automation,School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,China)

机构地区：[1]江苏大学机械工程学院机械设计制造及自动化系,镇江212013

出　　处：《激光技术》2025年第2期307-312,共6页Laser Technology

基　　金：国家自然科学基金资助项目(51975252)。

摘　　要：为了提高激光除漆的质量和效率,对2024铝合金表面喷涂丙烯酸漆层并进行了清洗实验。采用正交试验法对除漆后试样表面的形貌、元素能谱及粗糙度进行了观察和分析,研究了各激光参数对除漆效果的影响程度,并通过验证实验对比得出最佳工艺参数组合。结果表明,5个主要参数中对除漆厚度影响最为显著的是激光功率;在单次扫描能基本去除漆层的情况下,单一提高激光功率不能明显提高除漆效果;在合适的参数组合下,能够完全去除铝合金表面200μm左右的漆层,并且不损伤基材。该研究为激光除漆工艺提供了一定参考。In order to improve the quality and efficiency of laser paint removal,acrylic paint layer was sprayed on the surface of 2024 aluminum alloy and cleaning test was carried out.The surface morphology,element energy spectrum,and roughness of the sample after paint removal were observed and analyzed by orthogonal test method,and the influence degree of each laser parameter on paint removal effect was studied.The best combination of process parameters was obtained by verification test comparison.The results show that,among the five main parameters,the laser power has the most significant influence on the paint removal thickness.When the paint layer can be basically removed by a single scan,the paint removal effect can not be obviously improved by simply increasing the laser power.Under the appropriate combination of parameters,the paint layer of about 200μm on the surface of aluminum alloy can be completely removed without damaging the substrate.This study provides some reference for laser paint removal process.

关 键 词：激光技术 激光清洗 正交试验 工艺优化 表面形貌 

分 类 号：TN249[电子电信—物理电子学]