Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/151431
Title: Thermal effect of femtosecond laser polystyrene processing
Authors: Wang, Bing
Wang, Xincai
Zheng, Hongyu
Lam, Yee Cheong
Keywords: Engineering::Mechanical engineering
Issue Date: 2019
Source: Wang, B., Wang, X., Zheng, H. & Lam, Y. C. (2019). Thermal effect of femtosecond laser polystyrene processing. Optics and Laser Technology, 117, 244-250. https://dx.doi.org/10.1016/j.optlastec.2019.04.033
Journal: Optics and Laser Technology
Abstract: The thermal effects during femtosecond laser polymer processing have been investigated. The temperature increase during the process was directly observed by employing an infrared camera. Our results showed that the temperature can increase significantly during the laser-material interaction process. This indicates that a large percentage of laser energy can be converted to heat energy and dissipated into the bulk material. The temperature change as a function of the laser intensity was investigated. Nonlinear absorption was observed and proved to be the major absorption mechanism during the femtosecond laser polymer interaction process. The simulated results of thermal effect with a 3D FE model were compared with the experimentally measured temperature profile. The mechanism involved in the laser beam-material interaction was discussed.
URI: https://hdl.handle.net/10356/151431
ISSN: 0030-3992
DOI: 10.1016/j.optlastec.2019.04.033
Rights: © 2019 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SIMTech Journal Articles

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