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Proceedings Paper

Numerical simulation of heat accumulation effects with different repetition rate pulse laser
Author(s): Jie Zhou; Zewen Li; Bing Han; Zhonghua Shen; Xiaowu Ni; Jian Lu
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Paper Abstract

To investigate the heat accumulation effect of the laser pulse train, a two dimensional finite element calculation model is established to calculate the temperature field of Aluminum target based on the Fourier heat transfer theory. Take account of the influence of the repetition rate of laser, four different repetition rates (5 kHz, 10 kHz, 50 kHz and 1 MHz) pulse laser train and continuous wave (CW) laser are analyzed in this study. The results indicate that under the same average power and irradiation time, the peak temperature and accumulative temperature increase with the decrease of the repetition rate. With the increase of the repetition rate, the heat accumulation effect is more closer to the CW laser. The heat accumulation effect of pulse laser train with lower repetitive rate is better.

Paper Details

Date Published: 15 October 2015
PDF: 7 pages
Proc. SPIE 9673, AOPC 2015: Micro/Nano Optical Manufacturing Technologies; and Laser Processing and Rapid Prototyping Techniques, 967308 (15 October 2015); doi: 10.1117/12.2202823
Show Author Affiliations
Jie Zhou, Nanjing Univ. of Science and Technology (China)
Zewen Li, Nanjing Univ. of Science and Technology (China)
Bing Han, Nanjing Univ. of Science and Technology (China)
Zhonghua Shen, Nanjing Univ. of Science and Technology (China)
Xiaowu Ni, Nanjing Univ. of Science and Technology (China)
Jian Lu, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9673:
AOPC 2015: Micro/Nano Optical Manufacturing Technologies; and Laser Processing and Rapid Prototyping Techniques
Lin Li; Minghui Hong; Lan Jiang, Editor(s)

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