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24 November 2021 Research on the thermal damage of Kevlar composites in laser processing
Xinyu Wu, Yanyan Lu, Chenxiao Zhao, Wei Zhang
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Proceedings Volume 12060, AOPC 2021: Advanced Laser Technology and Applications; 120601E (2021) https://doi.org/10.1117/12.2606782
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China
Abstract
In this paper, discuss about thermal damage of Kevlar composites in laser processing.Kevlar fiber is a unique aramid fiber with excellent physical properties unique to aramid fiber, such as high wear resistance and high tear resistance. It is precisely because of these excellent physical properties that common traditional mechanical tool processing methods are not effective, such as tool wear, fiber breakage, and material plate chipping. In the corresponding research at home and abroad, laser processing is considered to be a more excellent processing technology, which can overcome various processing difficulties caused by physical strength, but due to the thermal effect of laser processing, it will cause the heated area of the cut part Produce combustion, increase brittleness, and affect processing results. Therefore, studying the temperature and stress effects of lasers on Kevlar composites under different powers is the key to improving processing technology. This paper mainly studies the damage of Kevlar composites with the same thickness during laser irradiation, monitors the irradiation temperature, and uses an automatic three-dimensional surface measuring instrument to obtain photomicrographs of the damaged parts. In the experiment, a suitable experimental device was established to use a 1064nm laser to output a continuous laser to irradiate the Kevlar composite target material and monitor the real-time temperature at the same time
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Xinyu Wu, Yanyan Lu, Chenxiao Zhao, and Wei Zhang "Research on the thermal damage of Kevlar composites in laser processing", Proc. SPIE 12060, AOPC 2021: Advanced Laser Technology and Applications, 120601E (24 November 2021); https://doi.org/10.1117/12.2606782
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KEYWORDS
Composites
Laser processing
Laser applications
Combustion
Epoxies
Laser irradiation
Thermal effects
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