APPLIED LASER, Volume. 44, Issue 6, 112(2024)

Study on Surface Identification of Hard and Brittle Materials Based on 355 nm Laser

Chen Yuan1,2, Li Bicheng3、*, and Wang Junfu3
Author Affiliations
  • 1Shanghai Institute of Laser Technology, Shanghai 200233, China
  • 2Shanghai DPM Traceability Engineering Research Center, Shanghai 200233, China
  • 3Collections Conservation Research Center, Shanghai Natural History Museum (Branch of Shanghai Science and Technology Museum), Shanghai 200041, China
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    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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    Paper Information

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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)

    DOI:10.14128/j.cnki.al.20244406.112

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