• Chinese Journal of Lasers
  • Vol. 48, Issue 18, 1802013 (2021)
Zixun Li1、3, Xiuli He1、3、*, Gang Yu1、2、3、**, Chongxin Tian1、3, Zhiyong Li1、3, and Shaoxia Li1、3
Author Affiliations
  • 1Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
  • 2Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 3School of Engineering Science, University of Chinese Academy of Sciences, Beijing 100049, China
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    DOI: 10.3788/CJL202148.1802013 Cite this Article Set citation alerts
    Zixun Li, Xiuli He, Gang Yu, Chongxin Tian, Zhiyong Li, Shaoxia Li. Parametric Study of Fe Element Distribution in Laser Conduction Welding of Ni/304SS[J]. Chinese Journal of Lasers, 2021, 48(18): 1802013 Copy Citation Text show less
    Schematic diagram of the laser welding of dissimilar metals
    Fig. 1. Schematic diagram of the laser welding of dissimilar metals
    Schematic diagram of the calculation model
    Fig. 2. Schematic diagram of the calculation model
    Cross-section of the molten pool. (a) Simulation result; (b) experimental result
    Fig. 3. Cross-section of the molten pool. (a) Simulation result; (b) experimental result
    Calculation and experimental results of the element distribution
    Fig. 4. Calculation and experimental results of the element distribution
    Evolution of the molten pool. (a) Geometry profile and the distribution of Fe elements on the top surface; (b) geometric dimensions
    Fig. 5. Evolution of the molten pool. (a) Geometry profile and the distribution of Fe elements on the top surface; (b) geometric dimensions
    Distribution of Fe elements and liquid velocity on the cross section of the molten pool. (a) Relative position of the cross section; (b) plane 1; (c) plane 2; (d) plane 3
    Fig. 6. Distribution of Fe elements and liquid velocity on the cross section of the molten pool. (a) Relative position of the cross section; (b) plane 1; (c) plane 2; (d) plane 3
    Orthogonal simulation results of the process parameter correlation
    Fig. 7. Orthogonal simulation results of the process parameter correlation
    Mass fraction of Fe element in the longitudinal section. (a) Vscan=10 mm/s; (b) Vscan=20 mm/s; (c) Vscan=30 mm/s
    Fig. 8. Mass fraction of Fe element in the longitudinal section. (a) Vscan=10 mm/s; (b) Vscan=20 mm/s; (c) Vscan=30 mm/s
    Mass fraction of Fe element under different offsets. (a) Longitudinal section; (b) cross section
    Fig. 9. Mass fraction of Fe element under different offsets. (a) Longitudinal section; (b) cross section
    Distribution of Fe element under different parameters. (a) Parameters before adjustment; (b) parameters after adjustment
    Fig. 10. Distribution of Fe element under different parameters. (a) Parameters before adjustment; (b) parameters after adjustment
    CSiCrNiFe
    0.081.819.011.0Bal.
    Table 1. Mass fraction of elements in 304SS material unit: %
    FactorLevel
    12345
    Q /W6007008009001000
    doffset /μm-100-50050100
    Vscan /(mm·s-1)1015202530
    Table 2. Design of orthogonal parameters
    No.Q /Wdoffset /μmVscan /(mm·s-1)Caver /%No.Q /Wdoffset /μmVscan /(mm·s-1)Caver /%
    1600-1001029.7414800501037.03
    2600-501531.32158001001537.01
    360002028.7816900-1002522.01
    4600502529.4817900-503023.34
    56001003030.361890001034.70
    6700-1001526.3619900501532.19
    7700-502026.20209001002031.89
    870002526.02211000-1003024.38
    9700503024.47221000-501031.92
    107001001041.4323100001530.35
    11800-1002023.19241000502029.55
    12800-502523.352510001002530.80
    1380003025.06
    Table 3. Experimental results of the orthogonal simulation
    Factor12345R
    Q /W29.9428.9029.1328.8329.041.11
    doffset /μm25.1427.2328.2930.5534.309.17
    Vscan /(mm·s-1)34.9731.4527.9226.3325.529.45
    Table 4. Range analysis results
    Vscan/(mm·s-1)102030
    Mixing time/ms1688052
    Table 5. Mixing time the molten pool at different scanning velocity
    Zixun Li, Xiuli He, Gang Yu, Chongxin Tian, Zhiyong Li, Shaoxia Li. Parametric Study of Fe Element Distribution in Laser Conduction Welding of Ni/304SS[J]. Chinese Journal of Lasers, 2021, 48(18): 1802013
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