Numerical study on the effect of thermal conduction on explosive welding interface

Xiangyu, Zeng; Li, Xueqi; Li, Xiaojie; Mo, Fei; Yan, Honghao

doi:10.1007/s00170-019-04054-w

Cited by 17 publications

(6 citation statements)

References 34 publications

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“…The SPH numerical method is suitable for simulating large deformations and has been extensively used for the simulations of explosive welding processes. In particular, the simulations of the explosive welding process have been performed using the inclined collision of plates at a given flyer plate velocity VP and collision angle β [21][22] . Here, the interface between the flyer plate and interlayer was welded when the flyer plate just collided with the interlayer, the simulation of the interface used the parameters calculated by Eqs.…”

Section: Simulation Of Collision Processmentioning

confidence: 99%

Study of explosive welding of A6061/SUS821L1 using interlayers with different thicknesses and the air shockwave between plates

Chen

Inao

et al. 2021

Int J Adv Manuf Technol

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In this work, interlayers with different thickness were used to weld A6061 aluminum alloy and SUS 821L1 duplex stainless steel. The results indicated that the interlayer thickness had a significant effect on the welding. The influence of the air shock wave between the plates on the welding results was examined. The fluid-Solid coupling finite element method was used to simulate the movement of the interlayer under the action of the air shock wave. The smoothed particle hydrodynamics method was used to simulate the oblique impact process of the plates, and the unwelded samples were analyzed using the simulation results. In the analysis of weldability window, the influence of the interlayer on the upper and lower limits was examined.

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Section: Simulation Of Collision Processmentioning

confidence: 99%

Study of explosive welding of A6061/SUS821L1 using interlayers with different thicknesses and the air shockwave between plates

Chen

Inao

et al. 2021

Int J Adv Manuf Technol

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“…Explosive parameters were chosen as follows: the detonation velocity V = 2800 / , the explosive thickness 0 = 30 , the density 0 = 0.9g/ 3 . [2]. Corrosion to niobium first, then to steel, can get a better corrosion interface.…”

Section: Discussionmentioning

confidence: 99%

Experimental and Numerical Study on the Explosive Welding of Niobium-Steel

Wang¹,

Li²,

Wang³

2021

Preprint

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The aim of this work is to study the use of explosive welding to produce Niobium-Steel composite plate, which is used in nuclear industry equipment material manufacturing. The welding parameters was determined by weldability window and numerical simulation was used to predict the wave shape of the welding interface. The morphology of the interface wave was observed by scanning electron microscope. Component measurement around interface waves. The experimental samples were investigeted using mechanical tests. The results show that the explosion parameters optimized by theory and numerical simulation can be used to obtain a niobium-steel composite plate with better welding quality. It can be proved that the welding quality is better by observing the interface wave and testing the mechanical properties, it can be seen that the melting zone of the welding interface is composed of niobium and steel by the composition analysis instrument. The morphology of the welding interface wave is consistent with the numerical simulation results, and the numerical simulation shows the changes of temperature, strain, and stress during the welding process.

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“…Part of the kinetic energy was converted into material heat, and the interface metal melted at high temperature. However, the small impact energy was not enough to produce a large range of strong [29,30]. The molten metal generated by the collision was more in the form of high-speed jet, and its interior contained both titanium and aluminum materials.…”

Section: Formation Of Vortices and Melted Areamentioning

confidence: 99%

Microstructure and characterization of Ti–Al explosive welding composite plate

Zhang

et al. 2022

Int J Adv Manuf Technol

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In order to study the interface characteristics and microstructure formation of Ti-Al composite plate, explosive welding was carried out with TA2 titanium as the fly plate and 5083 aluminums as the base plate. Optical microscope and electron microscope were used to analyze the microstructure of intermetallic compounds. SPH method was used to simulate the welding process of composite plates. The formation conditions and initial defects of intermetallic compounds were analyzed. The results show that most of the melted metal in the wave-front stays in the wave-waist region, and there was a relative velocity difference between the vortex and the titanium tissue, which led to the existence of small pieces of fragmentation. The outer layer of the vortex had higher velocity than the inner layer. The formation of Ti 3 Al, its antioxidant capacity wound lead to the formation of cracks. The temperature of outer vortex was higher than that of inner vortex, and the vortex has a transition layer of 5 μm, which is thinner than the transition layer of 8 μm between cladding plate and substrate. The jet was mostly composed of aluminum metal, and the interface jet velocity reaches 3000 m•s -1 and the interface temperature reaches up to 2100 K. Compared with the molten metal in the wave-back vortex, the jet temperature at the interface was higher, resulting in a thicker transition layer at the bonding surface. The residual stress at the interface wound cause the density of the material to increase.

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Numerical study on the effect of thermal conduction on explosive welding interface

Cited by 17 publications

References 34 publications

Study of explosive welding of A6061/SUS821L1 using interlayers with different thicknesses and the air shockwave between plates

Study of explosive welding of A6061/SUS821L1 using interlayers with different thicknesses and the air shockwave between plates

Experimental and Numerical Study on the Explosive Welding of Niobium-Steel

Microstructure and characterization of Ti–Al explosive welding composite plate

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