Plasticity improvement coupled by carbon nanotubes and beam oscillation in laser-arc hybrid welding of magnesium alloy

Hao, Kangda; Gao, Yongkang; Xu, Lianyong; Zhao, Lei; Ren, Wenjing

doi:10.1016/j.msea.2022.144093

Cited by 12 publications

(2 citation statements)

References 27 publications

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“…Laser-arc hybrid welding, using the combined heat source of laser and arc, enables high-speed welding with high filling efficiency, better shape, fewer weld defects, and excellent mechanical properties. It is widely used in fields such as transportation and aerospace [6][7][8][9][10]. Although hybrid welding has many advantages, it is difficult to achieve high-quality welds in practical applications due to the complex interaction mechanism of laser and arc in space-time.…”

Section: Introductionmentioning

confidence: 99%

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

et al. 2023

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Laser–arc hybrid welding (LAHW) is known to achieve more stable processes, better mechanical properties, and greater adaptability through the synergy of a laser and an arc. Numerical simulations play a crucial role in deepening our understanding of this interaction mechanism. In this paper, we review the current work on numerical simulations of LAHW, including heat source selection laws, temperature field, flow field, and stress field results. We also discuss the influence of laser–arc interaction on weld defects and mechanical properties and provide suggestions for the development of numerical simulations of LAHW.

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Section: Introductionmentioning

confidence: 99%

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

et al. 2023

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“…Meng et al [ 18 ] used the pulse laser to join the stainless steel and found that the porosity ratio decreased significantly. Hao et al [ 19 ] achieved the plasticity improvement of an AZ31 Mg alloy welded joint by laser beam oscillation. In short, with a laser beam oscillation in the laser–MIG welding process, the mechanical properties of welded joints can be improved due to the decreased welding defects and microstructure optimization.…”

Section: Introductionmentioning

confidence: 99%

Effect of Process Parameters on the Formability, Microstructure, and Mechanical Properties of Laser-Arc Hybrid Welding of Q355B Steel

et al. 2023

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Thick plate steel structure is widely used in the construction machinery, pressure vessels, ships, and other manufacturing fields. To obtain an acceptable welding quality and efficiency, thick plate steel is always joined by laser-arc hybrid welding technology. In this paper, Q355B steel with a thickness of 20 mm was taken as the research object, and the process of narrow-groove laser-arc hybrid welding was studied. The results showed that the laser-arc hybrid welding method could realize one-backing and two-filling welding with the single-groove angles of 8–12°. At different plate gaps of 0.5 mm, 1.0 mm, and 1.5 mm, the shapes of weld seams were satisfied with no undercut, blowhole, or other defects. The average tensile strength of welded joints was 486~493 MPa, and the fracture position was in the base metal area. Due to the high cooling rate, a large amount of lath martensite formed in heat-affected zone (HAZ) and this zone exhibited higher hardness values. The impact roughness of the welded joint was almost 66–74 J, with different groove angles.

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A Review on Factors Influencing Solidification Cracking of Magnesium Alloys During Welding

Liu,

Wang,

et al. 2024

Met. Mater. Int.

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Plasticity improvement coupled by carbon nanotubes and beam oscillation in laser-arc hybrid welding of magnesium alloy

Cited by 12 publications

References 27 publications

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

A Review of Numerical Simulation of Laser–Arc Hybrid Welding

Effect of Process Parameters on the Formability, Microstructure, and Mechanical Properties of Laser-Arc Hybrid Welding of Q355B Steel

A Review on Factors Influencing Solidification Cracking of Magnesium Alloys During Welding

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