Laser & Optoelectronics Progress, Volume. 56, Issue 5, 051404(2019)

Numerical Simulation and Experimental Research of Laser Cladding Based on Thermo-Mechanical Coupling

Zhonghe Ren1,2, Meiping Wu1,2、*, Youhong Tang3, Jitai Han1, and Yuling Gong1
Author Affiliations
  • 1 School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
  • 2 Jiangsu Provincial Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Wuxi, Jiangsu 214122, China
  • 3 Suzhou Entry-Exit Inspection and Quarantine Bureau, Suzhou, Jiangsu 215021, China
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    Figures & Tables(14)
    Cross section of cladding layer and meshing. (a) Cross section of cladding layer; (b) meshing
    Comprehensive coefficient of heat transfer varing with temperature
    Geometry diagram of cross section of laser cladding layer
    Comparison between temperature field and metallographic structure of test piece
    Temperature fields of laser cladding. (a) Initial; (b) middle; (c) final; (d) cooling after 20 s
    Curves of temperature versus time
    Von Mises stress nephogram and displacement nephogram. (a) Von Mises stress; (b) displacement
    Stress distribution curves along different paths. (a) Along the Z axis in the middle of the bonding surface of the cladding layer and the matrix; (b) along the X axis in the middle of the matrix undersurface; (c) along the Y axis in the middle of the free end
    Temperature-time curves for different laser processing parameters. (a) Group A; (b) group B; (c) group C; (d) group D; (e) group E; (f) group F
    Stress distribution curves of different laser processing parameters along path 1
    Morphology of laser cladding specimens. (a) Front; (b) back
    Deformation of cladding specimens. (a) Photos; (b) deformation comparison
    • Table 1. The maximum temperature of model temperature field under different meshes

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      Table 1. The maximum temperature of model temperature field under different meshes

      NumberMesh size ofcladding layer /mMesh size ofmatrix /mMaximumtemperature /℃
      10.00100.00501603.70
      20.00150.00501599.06
      30.00200.00501583.30
      40.00250.00501566.03
      50.00300.00501551.76
      60.00500.00501464.02
    • Table 2. Grouping and calculation results of laser process parameters

      View table

      Table 2. Grouping and calculation results of laser process parameters

      GroupLaserpower P /WScanning speedv /(mm·s-1)Average value ofpeak temperature /℃Temperaturerange after cooling 10 s /℃Maximumdeformation /mm
      A200051871.15606.15-771.702.32
      B250052107.80721.20-900.842.64
      C2500101442.58451.25-509.751.39
      D3000101713.93550.70-625.951.63
      E3000201313.43307.11-331.770.93
      F3500201389.66348.94-377.131.03
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    Zhonghe Ren, Meiping Wu, Youhong Tang, Jitai Han, Yuling Gong. Numerical Simulation and Experimental Research of Laser Cladding Based on Thermo-Mechanical Coupling[J]. Laser & Optoelectronics Progress, 2019, 56(5): 051404

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Aug. 6, 2018

    Accepted: Sep. 12, 2018

    Published Online: Jul. 31, 2019

    The Author Email: Meiping Wu (wmp169@jiangnan.edu.cn)

    DOI:10.3788/LOP56.051404

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