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Yubo Liu

at Changchun Univ of Technology

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Proceedings Article | 24 November 2021 Paper

Simulation study on rubber removal by continuous nanosecond combined laser

Yubo Liu, Jixing Cai, Guangyong Jin

Proceedings Volume 12060, 120601V (2021) https://doi.org/10.1117/12.2607122

KEYWORDS: Optical simulations, Pulsed laser operation, Laser energy, Temperature metrology, Adhesives, Thermal effects, Energy efficiency, Absorption, Roads

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In this article, the finite element simulation software is used to analyze the temperature change and the removal depth of the nanosecond continuous laser to remove rubber tracks from the airport runway. The simulation results show that as the continuous laser output energy in nanoseconds increases, the removal depth gradually increases and the temperature of the laser action point gradually increases, so that the glue layer peels off. of the base surface without damaging the base. is removed when nanosecond power is 200W and 150W. Depth is best. In terms of laser glue removal simulation research, the distribution of the temperature field of the glue layer under the action of a pulsed Gaussian heat source is simulated to obtain a better vaporization temperature. Among combined lasers, continuous lasers have better thermal conduction and surface heating effects, but the depth of withdrawal is worse than nanosecond lasers. The nanosecond laser has a better effect of removing mechanical vibration, the central idea of the proposed combined laser is to use high-power short-pulse lasers to quickly increase the target surface temperature, and then according to the positive correlation between material absorption rate and temperature, it can change the material surface to follow. The continuous laser energy absorption characteristics improve the coupling efficiency of the material to laser energy and achieve the expected elimination goal.

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