脉冲激光清洗铝合金表面漆层的数值模拟与实验研究
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(河北工业大学 机械工程学院,天津 300132)

作者简介:

王 涛 (1963-),男,博士,教授,硕士生导师,主要从事光机电一体化方面的研究。

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中图分类号:

TN249

基金项目:

国家自然科学基金(51775166) 资助项目


Numerical simulation and experimental study of pulsed laser cleaning of aluminum alloy surface paint layer
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(School of Mechanical Engineering, Hebei University of Technology, Tianjin 300132, China)

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    摘要:

    本文采用COMSOL Multiphysics有限元仿真软件,对不同激光功率和扫描速度下的除漆深度和温度场分布情况进行了数值模拟,并通过实验验证了模拟结果的可靠性。结果表明,激光功率越大,清洗深度越深,漆层表面温度越高。扫描速度越慢,清洗深度越深,清洗后的表面越平整;当扫描速度过快时,清洗深度保持不变,清洗后的表面平整度降低。此外,当扫描速度较慢时,漆层最高温度随着脉冲数的增加而不断升高,直至趋于稳定;当扫描速度过快时,漆层最高温度不再随脉冲数的增加而变化。实验结果表明,当激光功率为20 W、扫描速度为1 250 mm/s时,清洗后的基体表面无油漆残留,表面质量最佳,且满足涂装工艺要求。

    Abstract:

    In this paper,COMSOL Multiphysics finite element simulation software was used to numerically simulate the paint removal depth and temperature field distribution under different laser powers and scanning speeds,and the reliability of the simulation results was verified by experiments.The results show that the higher the laser power,the deeper the cleaning depth and the higher the surface temperature of the paint layer.The slower the scanning speed,the deeper the cleaning depth,and the flatter the cleaned surface.When the scanning speed is too fast,the cleaning depth remains unchanged,and the flatness of the cleaned surface decreases.In addition,when the scanning speed is slow,the maximum temperature of the paint layer increases with the increase of the number of pulses until it stabilizes;when the scanning speed is too fast,the maximum temperature of the paint layer no longer changes with the increase of the number of pulses.The experimental results show that when the laser power is 20 W and the scanning speed is 1 250 mm/s,there is no paint residue on the surface of the cleaned substrate,the surface quality is optimal,and it meets the requirements of the coating process.

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顾志同,王涛,冯伟峰,张鑫,姚涛.脉冲激光清洗铝合金表面漆层的数值模拟与实验研究[J].光电子激光,2025,(5):537~546

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  • 收稿日期:2023-12-03
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  • 在线发布日期: 2025-03-26
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