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Chinese Journal of Lasers, Volume. 50, Issue 8, 0802203(2023)

Formed Quality of Milled Surfaces of Nickel‐Based Superalloy by Beam‐Coupled Nanosecond Laser

Xianyou Chen1,2, Xiaoxiao Chen2,3、*, Xuanhua Zhang2,4, and Wenwu Zhang2,3
Author Affiliations
  • 1Faculty of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, Zhejiang , China
  • 2Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Zhejiang Provincial Key Laboratory of Aero Engine Extreme Manufacturing Technology, Ningbo 315201, Zhejiang , China
  • 3University of Chinese Academy of Sciences, Beijing 100049, China
  • 4School of Mechanical and Electrical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000,Jiangxi , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (17)
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    References (23)
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    Figures & Tables(17)
    Schematic diagram of overall structure of processing system

    Fig. 1. Schematic diagram of overall structure of processing system

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    Schematic diagram of laser milling plane rectangular slot

    Fig. 2. Schematic diagram of laser milling plane rectangular slot

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    Variations of surface roughness of groove bottom and milling efficiency with scanning times. (a) Surface roughness Ra;

    Fig. 3. Variations of surface roughness of groove bottom and milling efficiency with scanning times. (a) Surface roughness Ra;

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    Three-dimensional topographies of laser-milled surfaces corresponding to different scanning times. (a) 1 time; (b) 5 times; (c) 10 times; (d) 20 times; (e) 40 times

    Fig. 4. Three-dimensional topographies of laser-milled surfaces corresponding to different scanning times. (a) 1 time; (b) 5 times; (c) 10 times; (d) 20 times; (e) 40 times

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    Micro-morphologies of laser-milled surfaces corresponding to different scanning times. (a) 1 time; (b) 5 times; (c) 10 times; (d) 20 times; (e) 40 times

    Fig. 5. Micro-morphologies of laser-milled surfaces corresponding to different scanning times. (a) 1 time; (b) 5 times; (c) 10 times; (d) 20 times; (e) 40 times

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    Schematic diagram of scanning path and spot overlap

    Fig. 6. Schematic diagram of scanning path and spot overlap

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    Variations of surface roughness and milling efficiency with scanning speed. (a) Surface roughness Ra; (b) milling efficiency MRR

    Fig. 7. Variations of surface roughness and milling efficiency with scanning speed. (a) Surface roughness Ra; (b) milling efficiency MRR

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    Three-dimensional topographies of laser-milled surfaces corresponding to different scanning speeds. (a) 50 mm/s; (b) 100 mm/s; (c) 150 mm/s; (d) 200 mm/s; (e) 250 mm/s

    Fig. 8. Three-dimensional topographies of laser-milled surfaces corresponding to different scanning speeds. (a) 50 mm/s; (b) 100 mm/s; (c) 150 mm/s; (d) 200 mm/s; (e) 250 mm/s

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    Micro-morphologies of laser-milled surfaces corres-ponding to different scanning speeds. (a) 50 mm/s; (b) 100 mm/s; (c) 150 mm/s; (d) 200 mm/s; (e) 250 mm/s

    Fig. 9. Micro-morphologies of laser-milled surfaces corres-ponding to different scanning speeds. (a) 50 mm/s; (b) 100 mm/s; (c) 150 mm/s; (d) 200 mm/s; (e) 250 mm/s

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    Variations of surface roughness and milling efficiency with scanning pitch. (a) Surface roughness Ra; (b) milling efficiency MRR

    Fig. 10. Variations of surface roughness and milling efficiency with scanning pitch. (a) Surface roughness Ra; (b) milling efficiency MRR

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    Three-dimensional topographies of laser milled surfaces corresponding to different scanning pitches. (a) 15 μm; (b) 20 μm; (c) 25 μm; (d) 30 μm; (e) 35 μm

    Fig. 11. Three-dimensional topographies of laser milled surfaces corresponding to different scanning pitches. (a) 15 μm; (b) 20 μm; (c) 25 μm; (d) 30 μm; (e) 35 μm

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    Micro-morphologies of laser-milled surfaces corresponding to different scanning pitches. (a) 15 μm; (b) 20 μm; (c) 25 μm; (d) 30 μm; (e) 35 μm

    Fig. 12. Micro-morphologies of laser-milled surfaces corresponding to different scanning pitches. (a) 15 μm; (b) 20 μm; (c) 25 μm; (d) 30 μm; (e) 35 μm

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    Variations of surface roughness and milling efficiency with laser power and pulse frequency.（a）Surface roughness Ra；

    Fig. 13. Variations of surface roughness and milling efficiency with laser power and pulse frequency.（a）Surface roughness Ra；

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    Three-dimensional machined surfaces topographies under different pulse frequencies and laser powers. (a) 10 kHz, 5 W; (b) 30 kHz, 5 W; (c) 10 kHz, 10 W; (d) 30 kHz, 10 W; (e) 10 kHz, 15 W; (f) 30 kHz, 15 W

    Fig. 14. Three-dimensional machined surfaces topographies under different pulse frequencies and laser powers. (a) 10 kHz, 5 W; (b) 30 kHz, 5 W; (c) 10 kHz, 10 W; (d) 30 kHz, 10 W; (e) 10 kHz, 15 W; (f) 30 kHz, 15 W

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    Micro‐morphologies of machined surfaces under different pulse frequencies and laser powers. (a) 10 kHz, 5 W; (b) 30 kHz, 5 W; (c) 10 kHz, 10 W; (d) 30 kHz, 10 W; (e) 10 kHz, 15 W; (f) 30 kHz, 15 W

    Fig. 15. Micro‐morphologies of machined surfaces under different pulse frequencies and laser powers. (a) 10 kHz, 5 W; (b) 30 kHz, 5 W; (c) 10 kHz, 10 W; (d) 30 kHz, 10 W; (e) 10 kHz, 15 W; (f) 30 kHz, 15 W

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    Micro‐morphologies and EDS analysis of material surface. (a) Original surface; (b) milled surface

    Fig. 16. Micro‐morphologies and EDS analysis of material surface. (a) Original surface; (b) milled surface

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    • Table 1. Process parameters for laser milling

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      Table 1. Process parameters for laser milling

      ParameterSymbolValue
      Wavelength /nmλ532
      Frequency /kHzf10，20，30
      Power /WP5，7.5，10，12.5，15
      Scanning speed /（mm·s-1）v50，100，150，200，250
      Scanning pitch /μms15，20，25，30，35
      Scanning timesN1，5，10，20，40
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    Xianyou Chen, Xiaoxiao Chen, Xuanhua Zhang, Wenwu Zhang. Formed Quality of Milled Surfaces of Nickel‐Based Superalloy by Beam‐Coupled Nanosecond Laser[J]. Chinese Journal of Lasers, 2023, 50(8): 0802203

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    Paper Information

    Category: Laser Surface Machining

    Received: Jun. 21, 2022

    Accepted: Aug. 6, 2022

    Published Online: Mar. 28, 2023

    The Author Email: Chen Xiaoxiao (chenxiaoxiao@nimte.ac.cn)

    DOI:10.3788/CJL220986

    Topics

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