Ablation Characteristic Analysis of Short Pulse Laser Processing Composite Materials

Abstract:

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Short pulse lasers, including picosecond laser and femtosecond laser are involved to investigate the ablation characteristics of processing carbon fiber reinforced plastics (CFRPs). The ablation threshold of the femtosecond laser, 0.453 J/cm2, is twice higher than that of the picosecond laser 0.867 J/cm2, since the former generates an intense and shorter pulse and the atoms excitation and multi-photon absorption may occur as short as 10 ps or less. The ablation test also describes the processing qualities, where the femtosecond laser has processing abilities without visible thermal defects or charring over the picosecond laser.

Info:

Periodical:

Advanced Materials Research (Volumes 189-193)

Edited by:

Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang

Pages:

3759-3763

DOI:

10.4028/www.scientific.net/AMR.189-193.3759

Citation:

Y. P. Pan et al., "Ablation Characteristic Analysis of Short Pulse Laser Processing Composite Materials", Advanced Materials Research, Vols. 189-193, pp. 3759-3763, 2011

Online since:

February 2011

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Price:

$35.00

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