Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Chinese Journal of Lasers, Volume. 51, Issue 12, 1202106(2024)

Process Characteristics, Microstructure, and Properties of Q235 Steel by Scanning Laser Hot Wire Welding

Chenqian Yu1, Gang Ren2, Yingjie Huang2, and Ming Gao1、*
Author Affiliations
  • 1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • 2Jiujiang Institute of Advanced Laser Technology, Jiujiang 332005, Jiangxi, China
    • show less
    AbstractGet PDF(in Chinese)
    Figures&Tables (16)
    Equations (0)
    References (26)
    Cited By (2)
    Tools
    Paper Information
    Topics
    Figures & Tables(16)
    Oscillating laser hot wire welding device

    Fig. 1. Oscillating laser hot wire welding device

    Download full size
    Schematic of scanning laser hot wire welding

    Fig. 2. Schematic of scanning laser hot wire welding

    Download full size
    Hardness test positions

    Fig. 3. Hardness test positions

    Download full size
    Schematics of tensile specimen. (a) Sampling diagram; (b) diagram of tensile specimen size

    Fig. 4. Schematics of tensile specimen. (a) Sampling diagram; (b) diagram of tensile specimen size

    Download full size
    Weld surface and cross section morphologies under different scanning parameters

    Fig. 5. Weld surface and cross section morphologies under different scanning parameters

    Download full size
    Microstructure of base metal

    Fig. 6. Microstructure of base metal

    Download full size
    Microstructures of weld centers. (a) Before adding scanning laser; (b) after adding scanning laser

    Fig. 7. Microstructures of weld centers. (a) Before adding scanning laser; (b) after adding scanning laser

    Download full size
    Mass fractions of elements at measuring points

    Fig. 8. Mass fractions of elements at measuring points

    Download full size
    Microstructure of heat affected zone in scanning laser hot wire welding. (a) Coarse-grained region ;(b) fine crystal region

    Fig. 9. Microstructure of heat affected zone in scanning laser hot wire welding. (a) Coarse-grained region ;(b) fine crystal region

    Download full size
    Fracture morphologies of tensile specimens. (a) Laser cold wire welded joints; (b) laser hot wire welded joints; (c) scanning laser hot wire welded joints

    Fig. 10. Fracture morphologies of tensile specimens. (a) Laser cold wire welded joints; (b) laser hot wire welded joints; (c) scanning laser hot wire welded joints

    Download full size
    Hardness distributions of welded joints. (a) Laser hot wire welding; (b) scanning laser hot wire welding

    Fig. 11. Hardness distributions of welded joints. (a) Laser hot wire welding; (b) scanning laser hot wire welding

    Download full size
    Appearances of weld sections under different butt clearances

    Fig. 12. Appearances of weld sections under different butt clearances

    Download full size
    Weld morphologies

    Fig. 13. Weld morphologies

    Download full size

    • Table 1. Chemical compositions of base metal and welding wire (mass fraction, %)

      View table

      Table 1. Chemical compositions of base metal and welding wire (mass fraction, %)

      MaterialCSiMnPSCuFe
      Q2350.1800.3000.4500.0450.050‒Bal.
      50C60.0800.9201.5200.0200.0150.200Bal.

    • Table 2. Experimental parameters for welding

      View table

      Table 2. Experimental parameters for welding

      Laser power P /kWWelding speedVw /（m/min）Wire feed speed Vf /（m/min）Hot wire current I /AScanning frequency f /HzScanning amplitude A /mm

      Clearance distance

      D /mm

      1.81.01.500
      1.81.01.51000
      1.81.01.51001000.60
      1.81.01.51002000.60
      1.81.01.51001000.80
      1.81.01.51002000.80
      1.81.01.51001001.00
      1.81.01.51002001.00
      1.81.03.00000.6
      1.81.03.00000.8
      1.81.03.00001.0
      1.81.03.00001.1
      1.81.03.0100001.1
      1.81.03.0100001.2
      1.81.03.0100501.01.2
      1.81.03.0100501.01.3

    • Table 3. Tensile test results of welded joints obtained by different welding methods

      View table

      Table 3. Tensile test results of welded joints obtained by different welding methods

      Welding methodTensile strength /MPaElongation /%Fracture position
      Laser cold wire welding528.35.8%FZ
      Laser hot wire welding574.78.4%FZ
      Scanning laser hot wire welding578.813.1%FZ
    Tools

    Get Citation

    Copy Citation Text

    Chenqian Yu, Gang Ren, Yingjie Huang, Ming Gao. Process Characteristics, Microstructure, and Properties of Q235 Steel by Scanning Laser Hot Wire Welding[J]. Chinese Journal of Lasers, 2024, 51(12): 1202106

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Laser Forming Manufacturing

    Received: Jun. 6, 2023

    Accepted: Aug. 1, 2023

    Published Online: Jan. 29, 2024

    The Author Email: Gao Ming (mgao@mail.hust.edu.cn)

    DOI:10.3788/CJL230893

    CSTR:32183.14.CJL230893

    Topics

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