Infrared and Laser Engineering, Volume. 51, Issue 2, 20210883(2022)

Perforation effect of CW laser irradiation on aluminum alloy under subsonic flow

Xiaoteng Zhang, Zewen Li, Yiqing Zhou, and Zhonghua Shen
Author Affiliations
  • School of Science, Nanjing University of Science and Technology, Nanjing 210094, China
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    Figures & Tables(18)
    Diagram of experimental device
    Aluminum plate model
    Surface morphology of aluminum alloy at different laser power density of 834 W/cm2 under 0.6 Ma airflow
    Surface temperature distribution of aluminum alloy by thermal imager at different times and laser power density of 834 W/cm2 under 0.6 Ma airflow
    Temperature rise process at the center point of aluminum alloy under the action of airflow at 0.6 Ma and laser power density of 834 W/cm2
    Temperature rise history of aluminum alloy center under laser irradiation with different power densities under 0.6 Ma airflow
    Ablation morphology of 7075 aluminum alloy under 0.6 Ma airflow
    Perforation time and pore size of aluminum alloy irradiated by different laser power densities under 0.6 Ma airflow
    Effect of different flow rates on perforation time under the action of 691 W/cm2 laser power density
    Temperature rise curves at first perforation point (a) and center point (b) at 0 Ma and 0.1 Ma at laser power density 691 W/cm2
    691 W/cm2 laser irradiation ablation morphology of 7075 aluminum alloy
    Central temperature rise curves at 0.1 Ma, 0.2 Ma and 0.3 Ma at 691 W/cm2 laser power density
    Laser irradiation of 7075 aluminum alloy at 691 W/cm2 laser power density. (a) Ablation morphology at 0.1 Ma; (b) Ablation morphology at 0.2 Ma; (c) Ablation morphology at 0.3 Ma
    Temperature rise curves at the center of 0.3 Ma, 0.4 Ma and 0.5 Ma at 691 W/cm2 laser power density
    Laser irradiation of 7075 aluminum alloy at 691 W/cm2 laser power density. (a) 0.3 Ma ablation morphology; (b) 0.4Ma ablation morphology; (c) 0.5 Ma ablation morphology
    Central temperature rise curves at 0.5 Ma, 0.6 Ma and 0.7 Ma at 691 W/cm2 laser power density
    Laser irradiation of 7075 aluminum alloy at 691 W/cm2 laser power density. (a) Ablation morphology at 0.5 Ma; (b) Ablation morphology at 0.6 Ma; (c) Ablation morphology at 0.7 Ma
    • Table 1. Experimental parameters: Laser power density and airflow velocity

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      Table 1. Experimental parameters: Laser power density and airflow velocity

      Type of materialSample numberLaser power density/W·cm−2Air velocity/Ma
      7075 aluminum alloy1-56910.6
      6-10751
      11-15834
      16-20892
      21-25951
      26-301020
      7075 aluminum alloy31-356910
      36-400.1
      41-450.2
      46-500.3
      51-550.4
      56~600.5
      61-650.6
      66-700.7
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    Xiaoteng Zhang, Zewen Li, Yiqing Zhou, Zhonghua Shen. Perforation effect of CW laser irradiation on aluminum alloy under subsonic flow[J]. Infrared and Laser Engineering, 2022, 51(2): 20210883

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    Paper Information

    Category: Special issue-Laser technology and its application

    Received: Nov. 23, 2021

    Accepted: --

    Published Online: Mar. 21, 2022

    The Author Email:

    DOI:10.3788/IRLA20210883

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