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Chinese Journal of Lasers, Volume. 50, Issue 4, 0402010(2023)

Effect of Laser Cleaning Process Parameters on Surface Paint Removal of TC4 Titanium Alloy

Weijun Liu, Mingqi Zhang, Qiang Li*, Hongyou Bian, Ziming Zhao, and Dong Zhang
Author Affiliations
  • School of Mechanical Engineering, Shenyang University of Technology, Shenyang 110870, Liaoning, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (25)
    Cited By (5)
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    Figures & Tables(10)
    Topography images.(a)Section of specimen after painting; (b)paint layer surface

    Fig. 1. Topography images.(a)Section of specimen after painting; (b)paint layer surface

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    Schematic of laser cleaning system

    Fig. 2. Schematic of laser cleaning system

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    Two dimensional surface morphologies after cleaning under different laser energy densities. (a) 2.22 J/cm2; (b) 2.67 J/cm2;

    Fig. 3. Two dimensional surface morphologies after cleaning under different laser energy densities. (a) 2.22 J/cm2; (b) 2.67 J/cm2;

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    Three dimensional surface morphologies after cleaning under different energy densities. (a) 2.22 J/cm2; (b) 2.67 J/cm2;

    Fig. 4. Three dimensional surface morphologies after cleaning under different energy densities. (a) 2.22 J/cm2; (b) 2.67 J/cm2;

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    Two dimensional surface morphologies after cleaning under different laser cleaning speeds. (a) 9 mm/s; (b) 8 mm/s; (c) 6 mm/s;

    Fig. 5. Two dimensional surface morphologies after cleaning under different laser cleaning speeds. (a) 9 mm/s; (b) 8 mm/s; (c) 6 mm/s;

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    Three dimensional surface morphologies after cleaning under different laser cleaning speeds. (a) 9 mm/s; (b) 8 mm/s; (c) 6 mm/s;

    Fig. 6. Three dimensional surface morphologies after cleaning under different laser cleaning speeds. (a) 9 mm/s; (b) 8 mm/s; (c) 6 mm/s;

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    XRD patterns of epoxy zinc yellow paint layer on surface of TC4 titanium alloy after laser cleaning

    Fig. 7. XRD patterns of epoxy zinc yellow paint layer on surface of TC4 titanium alloy after laser cleaning

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    Hardness testing. (a) Schematic of hardness indentation positions; (b) Vickers hardness average value of TC4 before and after laser paint removal

    Fig. 8. Hardness testing. (a) Schematic of hardness indentation positions; (b) Vickers hardness average value of TC4 before and after laser paint removal

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    • Table 1. Surface roughnesses after laser cleaning under different energy densities

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      Table 1. Surface roughnesses after laser cleaning under different energy densities

      Laser energy density/（J/cm2）2.222.673.113.564.004.44
      Single pulse energy /mJ5060708090100
      Surface roughness/μm6.43920.56224.79014.0062.0822.533

    • Table 2. Surface roughnesses after laser cleaning under different cleaning speeds

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      Table 2. Surface roughnesses after laser cleaning under different cleaning speeds

      Cleaning speed/（mm∙s-1）986543
      Surface roughness/μm8.74720.26824.95623.8782.7642.082
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    Weijun Liu, Mingqi Zhang, Qiang Li, Hongyou Bian, Ziming Zhao, Dong Zhang. Effect of Laser Cleaning Process Parameters on Surface Paint Removal of TC4 Titanium Alloy[J]. Chinese Journal of Lasers, 2023, 50(4): 0402010

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    Paper Information

    Category: laser manufacturing

    Received: Mar. 30, 2022

    Accepted: May. 15, 2022

    Published Online: Feb. 2, 2023

    The Author Email: Qiang Li (qlee77@163.com)

    DOI:10.3788/CJL220718

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology