Laser ablation properties of glass fiber reinforced epoxy composite under obliquely impinging air jet

Chenghua Wei; Zhiliang Ma; Yongxiang Zhu; Jiawei Wang; Weiping Liu

doi:10.1117/12.2524440

29 March 2019 Laser ablation properties of glass fiber reinforced epoxy composite under obliquely impinging air jet

Chenghua Wei, Zhiliang Ma, Yongxiang Zhu, Jiawei Wang, Weiping Liu

Proceedings Volume 11046, Fifth International Symposium on Laser Interaction with Matter; 110462U (2019) https://doi.org/10.1117/12.2524440
Event: Fifth International Symposium on Laser Interaction with Matter, 2018, Changsha, China

Abstract

The purpose of this investigation is to study laser ablation properties of glass fiber composite under obliquely impinging air jet. The continue wave near infrared laser ablation of fiber-reinforced composite materials under air jet with different velocity and inclination was studied experimental. The laser intensity is uniform distribution and the weight of sample was measured before and after experiment. Effective ablation heat was defined as the ratio of laser energy to weight loss. The experimental results showed that the process of the glass fiber reinforced epoxy composite ablation under laser and air jet can be divided into two stages. The first stage is mainly thermal ablation. The effective ablation heat increased as the inclination angle increased under same laser intensity. The effective ablation heat decreased with laser irradiation duration under same inclination angel and laser intensity. the second stage is mainly mechanical damage. the remain materials was broken and removed by air jet impingement, thus the effective ablation heat decreased evidently.

Citation Download Citation

Chenghua Wei, Zhiliang Ma, Yongxiang Zhu, Jiawei Wang, and Weiping Liu "Laser ablation properties of glass fiber reinforced epoxy composite under obliquely impinging air jet", Proc. SPIE 11046, Fifth International Symposium on Laser Interaction with Matter, 110462U (29 March 2019); https://doi.org/10.1117/12.2524440

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