Removal of Low Thermal Conductivity Paint with High Repetition Rate Pulse Laser

Zhiyan, 张志研 Zhang; Yibo, 王奕博 Wang; Hao, 梁浩 Liang; Shusen, 赵树森 Zhao; Xuechun, 林学春 Lin; Xinyang, 李新阳 Li

doi:10.3788/cjl201946.0102009

Cited by 2 publications

(2 citation statements)

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“…Laser cleaning is always considered as a very complex process influenced by multiple mechanisms 7 – 11 In the process of laser cleaning, the factors affecting the cleaning effect are laser wavelengths, 12 defocusing amount, scanning speed, 13 energy density, 14 , 15 and processing environment.…”

Section: Introductionmentioning

confidence: 99%

“…Laser cleaning is always considered as a very complex process influenced by multiple mechanisms. [7][8][9][10][11] In the process of laser cleaning, the factors affecting the cleaning effect are laser wavelengths, 12 defocusing amount, scanning speed, 13 energy density, 14,15 and processing environment. When using a pulsed laser, the laser frequency, 16 pulse width, and laser waveform 17 also have an impact on the laser energy output.…”

Section: Introductionmentioning

confidence: 99%

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Numerical simulation of millisecond laser removal of thermal barrier coatings based on volume of fluid method

et al. 2022

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. A three-dimensional numerical model was established based on the volume of fluid method. The thermal-fluid process in the laser cleaning thermal barrier coatings is analyzed in detail. The effect of scanning speed on the cleaning process was investigated by tracing the migration position of the air-coating phase interface, with consideration of gravity and vapor impact pressure. It was demonstrated that phase change of the zirconia coating is dominated by the vaporization-evaporation process when it is ablated by a millisecond laser; the ablation process of the C263 alloy substrate is a solidification-melting process. The bulge at the edge of the gully will affect the morphology of the gully by influencing the temperature distribution.

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