Zhou Li, Zhao Haichao, Zhang Qing, Wang Qianrui, Ma Guozheng, Qiao Yulin, Wang Haidou
Appl Opt. 2024 Feb 20;63(6):A32-A43. doi: 10.1364/AO.504968.
A pulse laser with a wavelength of 1064 nm and a pulse width of 1 µs was used to experiment on the coating of a 2024 aluminum alloy surface. The removal performance of the pulse laser cleaning coating was explored by a single factor analysis and orthogonally conditions, and the effects of the laser power, scanning speed, and pulse frequency on the quality of laser coating removal were summarized. The mechanisms of pulse laser cleaning the coating were studied. The results show that the three parameters of the laser power, scanning speed, and pulse frequency have different effects on the quality of laser coating removal. Among them, with the increase of the scanning speed and pulse frequency, the quality of laser cleaning first increases and then decreases, respectively. With the increase in laser power, the quality of laser cleaning increases. A good laser cleaning quality can be achieved at the laser power of 16.5 W, a scanning speed of 600 mm/s, and a pulse frequency of 30 kHz. The laser cleaning coating involves a variety of mechanisms such as combustion, explosion, gasification, thermal vibration stripping, and laser plasma impact. The result can provide practical references for a better searching of the paint removal.
采用波长为1064 nm、脉宽为1 μs的脉冲激光对2024铝合金表面涂层进行实验。通过单因素分析和正交条件探究脉冲激光清洗涂层的去除性能，总结激光功率、扫描速度和脉冲频率对激光涂层去除质量的影响。研究了脉冲激光清洗涂层的机理。结果表明，激光功率、扫描速度和脉冲频率这三个参数对激光涂层去除质量有不同影响。其中，随着扫描速度和脉冲频率的增加，激光清洗质量分别先升高后降低。随着激光功率的增加，激光清洗质量提高。在激光功率为16.5 W、扫描速度为600 mm/s、脉冲频率为30 kHz时可获得良好的激光清洗质量。激光清洗涂层涉及燃烧、爆炸、气化、热振动剥离和激光等离子体冲击等多种机理。该结果可为更好地去除涂层提供实际参考。
