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Numerical simulation and experimental study of pulsed CO2 laser-induced micro-channels on poly-ether sulfone (PES) polymer
Optics & Laser Technology ( IF 5 ) Pub Date : 2021-02-18 , DOI: 10.1016/j.optlastec.2020.106879
D. Esmaeilpour Ghoochani , F.R. Biglari , H. Pazokian

TEA CO2 laser pulses were used to create micro-channels on PES samples with various low fluences and scanning speeds in 16–50 J/cm2 and 23–45 µm/s ranges, respectively. Different micro-channels were created with 142–342 µm widths and 85–440 µm depths which has been 3-dimensionally simulated using ABAQUS software based on the finite element method and CIN heat source. The sharp spike (~85 ns FWHM) and long tail (~3.8 µs) parts of the laser pulses were mathematically modeled with individual Gaussian profiles. A good agreement has been found between the simulated and experimental results. Namely, the maximum relative errors of the depth and opening width of the grooves remain below 11.5% and 12.3%, respectively. However, the corresponding mean values of these relative errors do not exceed 4.1% and 7.5%, respectively.



中文翻译:

脉冲CO 2激光诱导的聚醚砜(PES)聚合物微通道的数值模拟和实验研究

使用TEA CO 2激光脉冲在PES样品上创建微通道,并具有不同的低通量和16-50 J / cm 2的扫描速度和23–45 µm / s范围。创建了不同的微通道,其宽度为142–342 µm,深度为85–440 µm,已使用基于有限元方法和CIN热源的ABAQUS软件对其进行了三维模拟。激光脉冲的尖峰脉冲(〜85 ns FWHM)和长尾巴(〜3.8 µs)部分通过单独的高斯分布进行数学建模。在模拟结果和实验结果之间找到了很好的一致性。即,凹槽的深度和开口宽度的最大相对误差分别保持在11.5%和12.3%以下。但是,这些相对误差的相应平均值分别不超过4.1%和7.5%。

更新日期:2021-02-18
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