Investigation of welding parameters on microstructure and mechanical properties of laser beam-welded joint of 2060 Al–Cu–Li alloy

Gu, Cheng; Wei, Yanhong; Zhan, Xiaoli; Zhang, Dan; Ren, Shuai; Liu, Hongbing; Li, Hao

doi:10.1007/s00170-016-9806-7

Cited by 12 publications

(2 citation statements)

References 22 publications

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“…There are many methods developed in the welding of titanium alloys, such as gas tungsten inert gas (TIG) welding, laser beam welding (LBW) and electron beam welding (EBW) [8]. Compared with other welding methods, laser welding is characterized by concentrating energy, narrow heat affected zone (HAZ) and slight deformation after welding [9][10]. Besides, laser welding, which requires high assembly clearance and performs high speed, is suitable for the connection of structures with different thickness.…”

Section: Introductionmentioning

confidence: 99%

Effect of Laser Welding Speed on Grain Morphology and Tensile Property of TA15 Titanium Alloy Bottom-Locking Joint

Wang¹,

Qi²,

Zhao³

et al. 2021

Preprint

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The laser welding of TA15 titanium alloy with the bottom-locking joints is carried out by TruDisk-12003 disc laser. In this paper, the microstructure and tensile properties of welded joints with different welding speeds are studied. The microstructure is observed by optical microscope. The tensile fracture morphology and chemical composition are analyzed by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) respectively. The experimental results show that the width of weld zone (WZ) is decreased significantly with the increasing of welding speed. The β columnar crystal shows respective morphology and growth direction in WZ under different welding speeds, meanwhile, the number of acicular martensite which is precipitated in columnar crystal also presents different. Besides, the aggregate growth zone of columnar crystal at the bottom of weld zone gets smaller with the increase of welding speed. The maximum tensile strength for the TA15 titanium alloy bottom-locking joint, which is fractured at weld joint, reaches 89% of the BM. Besides, the EDS results illustrate that the burning loss of stabilization element is inevitable.

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Section: Introductionmentioning

confidence: 99%

Effect of Laser Welding Speed on Grain Morphology and Tensile Property of TA15 Titanium Alloy Bottom-Locking Joint

Wang¹,

Qi²,

Zhao³

et al. 2021

Preprint

Self Cite

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“…The results showed that the synergy between the laser and arc increased the penetration depth of the laser induce keyhole to generate a fully penetrated weld pool. Cheng Gu et al [20] studied the characteristics of the laser welding of the 2060 Al-Li alloy. The results showed that the laser power had a significant influence on the weld width and the penetration depth at a certain welding speed.…”

Section: Introductionmentioning

confidence: 99%

Effect of the laser power on the microstructure and mechanical properties of the laser-MIG hybrid welding joints of the 2195 Al–Li alloy

Yang

Wang

et al. 2020

Science and Technology of Welding and Joining

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In the present study, 2195 aluminium-lithium (Al-Li) alloy joints were welded by laser-metal inert gas (laser-MIG) hybrid welding. The effect of different laser powers (700, 1000, and 1300 W) on the microstructures and mechanical properties of the weld joints was investigated. The dendritic solidification structure of the weld joint comprised the α-Al, θ -(Al 2 Cu), and T-(AlLiSi) phases. When the laser power increased, the grains coarsened, and the amount of the precipitated phase decreased. Consequently, the micro-hardness of the weld decreased. The heat input also increased with the increase in laser power. This increased the fluidity and solidification time of the liquid metal at the bottom of the molten pool. Therefore, the deposition of the particles of the refractory metal compounds and the formation of the equiaxed grain zone (EQZ) was hindered.

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Study of the structure and phase composition of laser welded joints of Al-Cu-Li alloy under different heat treatment conditions

Маликов

Булина

Шарафутдинов

et al. 2019

Int J Adv Manuf Technol

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Investigation of welding parameters on microstructure and mechanical properties of laser beam-welded joint of 2060 Al–Cu–Li alloy

Cited by 12 publications

References 22 publications

Effect of Laser Welding Speed on Grain Morphology and Tensile Property of TA15 Titanium Alloy Bottom-Locking Joint

Effect of Laser Welding Speed on Grain Morphology and Tensile Property of TA15 Titanium Alloy Bottom-Locking Joint

Effect of the laser power on the microstructure and mechanical properties of the laser-MIG hybrid welding joints of the 2195 Al–Li alloy

Study of the structure and phase composition of laser welded joints of Al-Cu-Li alloy under different heat treatment conditions

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