激光去除AH32钢漆层的数值模拟及实验研究  

Numerical simulation and experimental study on laser removal of AH32 steel paint layer

作　　者：张鑫 王涛[1] 冯伟峰 顾志同 ZHANG Xin;WANG Tao;FENG Weifeng;GU Zhitong(College of Mechanical Engineering,Hebei University of Technology,Tianjin 300132,China)

机构地区：[1]河北工业大学机械工程学院,天津300132

出　　处：《光电子.激光》2025年第1期93-99,共7页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金(51775166)资助项目。

摘　　要：采用有限元模拟软件建立激光去除AH32钢表面环氧树脂漆层的数值模型,并在其表面加载脉冲激光清洗过程。探究了不同激光参数对激光去除AH32船用钢表面漆层的温度场影响。模拟结果表明,漆层表面最高温度随光斑中心的移动而变化,其扫描轨迹呈彗星状;漆层表面最高温度随光斑直径和扫描速度的增大而减小,随激光重复频率和激光功率的增大而增大,并通过实物清洗实验验证此规律,观察其清洗后的表面形貌,得到当激光功率为28W,光斑直径为0.05 mm,重复频率为50 kHz,扫描速度为1000 mm/s时,不仅能完全把漆层去除,而且不会损伤基底材料。研究结果为激光清洗船用钢表面漆层提供理论依据和实验参照。The finite element simulation software was used to establish the numerical model of laser removal of epoxy resin paint layer on the surface of AH32 steel,and loaded the pulsed laser on its surface for its cleaning process.The effects of different laser parameters on the temperature field of the laser removal of the paint layer on the surface of AH32 marine steel were investigated.The simulation results show that the maximum temperature of the paint layer surface changes with the movement of the spot center,and its scanning trajectory is comet-shaped;the maximum temperature of the paint layer surface decreases with the increase of the spot diameter and scanning speed,and increases with the increase of the laser repetition frequency and the laser power,and verify this law through the in-kind cleaning experiments,and observe the surface morphology of the cleaned surface,and get the results of the cleaning process when the laser power of 28 W,spot diameter of 0.05 mm,repetition frequency of 50 kHz and the scanning speed is 1000 mm/s,not only can the paint layer be completely removed,but also the substrate material will not be damaged.The results of the study provide theoretical basis and experimental reference for laser cleaning of marine steel surface paint layer.

关 键 词：激光清洗 数值模拟 AH32船用钢 表面形貌 

分 类 号：TN249[电子电信—物理电子学]