APPLIED LASER, Volume. 44, Issue 6, 112(2024)
Study on Surface Identification of Hard and Brittle Materials Based on 355 nm Laser
In this paper, in order to meet the needs of transparent glass decoration and high-quality graphic marking, UV nanosecond laser source is used to conduct laser direct identification technology research on the surface of transparent glass materials (high borosilicate glass, quartz glass). By changing the laser process parameters, the effects of the cumulative pulse energy density, peak power density and laser pulse scanning mode on the integrity, roughness and ablation depth of the marking area were studied, so as to understand the marking characteristics of two kinds of glass materials. The experiment results show that the cumulative pulse energy density mainly affects the integrity of the logo pattern. The peak power density determines the damage threshold of the material identification, and the filling mode with the short side scanning back and forward is more complete. Compared with high borosilicate material, quartz material has higher damage threshold and wider processing window.
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Chen Yuan, Li Bicheng, Wang Junfu. Study on Surface Identification of Hard and Brittle Materials Based on 355 nm Laser[J]. APPLIED LASER, 2024, 44(6): 112
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Received: Oct. 9, 2022
Accepted: Dec. 13, 2024
Published Online: Dec. 13, 2024
The Author Email: Bicheng Li (libc@sstm.org.cn)