Numerical Simulation and Surface Morphology of Laser-Cleaned Aluminum Alloy Paint Layer

Liaoyuan, 高辽远 Gao; Jianzhong, 周建忠 Zhou; Qi, 孙奇 Sun; Huating, 李华婷 Li; Ming, 朱明 Zhu; Zhaoheng, 郭召恒 Guo; Jianian, 杨嘉年 Yang

doi:10.3788/cjl201946.0502002

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Cited by 12 publications

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“…where T is the temperature of the upper surface of the model, n is the normal vector to the model boundary, T0 is the ambient temperature, h is the convective heat transfer coefficient, σ is the Boltzmann constant, and ε is the surface emissivity [12] .…”

Section: Theoretical Foundations Of the Simulation Processmentioning

confidence: 99%

Hydrophilic study after nanosecond pulsed laser cleaning of DC04 steel surface

Tian,

Qing,

Cao

et al. 2023

International Conference on Precision Instruments and Optical Engineering (PIOE 2023)

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Section: Theoretical Foundations Of the Simulation Processmentioning

confidence: 99%

Hydrophilic study after nanosecond pulsed laser cleaning of DC04 steel surface

Tian,

Qing,

Cao

et al. 2023

International Conference on Precision Instruments and Optical Engineering (PIOE 2023)

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“…It was found that the surface temperature of a paint film increased linearly with increasing laser energy density and laser repetition frequency. Gao et al [16] studied the laser cleaning effects on an aluminium alloy surface paint layer through experiments. The results showed that the cleaning effect was optimal under the experimental conditions with a laser energy density of 25 J/cm 2 and an overlap rate of 50%.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis and Experimental Study of the Laser Cleaning of Ceramic Insulator Contamination

Tian

et al. 2022

IEEE Access

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Contamination flashover of insulators is one of the main threats to the safety of power systems, and regular cleaning of insulator surface pollution is an effective solution to this problem. In this paper, the laser cleaning of ceramic insulators is studied via simulations and experiments. The adhesion between a contamination layer and an insulator surface is estimated. A laser cleaning model for contaminated insulators is established, and a numerical analysis of the thermal stress field distribution characteristics of laser cleaning is carried out. Various factors that affect the thermal stress field distribution, including the laser power, laser scanning speed and thickness of the contamination layer, are also analysed. The optimal cleaning parameters for the best performance of laser cleaning are obtained through simulation and experiments. The result shows if the equivalent salt deposit density (ESDD) is 0.05 mg/cm 2 , and the nonsoluble deposit density (NSDD) is 0.25 mg/cm 2 , the best cleaning effect could be achieved when the laser power is 100 W and the scanning speed reached 6000 mm/s.

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