Journal ArticleDOI
Ultrasonic welding of dissimilar metals, AA6061 and Ti6Al4V
TLDR
In this paper, the influence of ultrasonic welding parameters on the mechanical properties, the interface microstructure, the micro-hardness and the composition diffusion of the welded joint was investigated.Abstract:
Ultrasonic welding of Ti6Al4V sheet and A6061 aluminum alloy sheet was conducted. The influence of ultrasonic welding parameters on the mechanical properties, the interface microstructure, the micro-hardness and the composition diffusion of the welded joint was investigated. It was shown to be possible to join Ti6Al4V sheet and A6061 aluminum alloy sheet through ultrasonic welding. After ultrasonic welding, the hardness of both the matrices increased, and there appeared to be some amount of diffusion across the welding interface. Various welding pressures and welding times were used and the strength of the welded joint was at its optimal value with a welding pressure of 0.4 MPa and a welding time of 170 ms.read more
Citations
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Journal ArticleDOI
Mechanism of weld formation during very-high-power ultrasonic additive manufacturing of Al alloy 6061
TL;DR: In this paper, the microstructures of Al alloy 6061 subjected to very high-power ultrasonic additive manufacturing were systematically examined to understand the underlying ultrasonic welding mechanism, and it was found that the weld interface between the metal tapes consisted of fine, equiaxed grains resulting from recrystallization, which was driven by simple shear deformation along the ultrasonically vibrating direction of the tape surface.
Journal ArticleDOI
Microstructure and lap shear strength of the weld interface in ultrasonic welding of Al alloy to stainless steel
TL;DR: The welds with weld energies of more than 1.05 kJ fracture in the base metal and were severely deformed by the ultrasonic vibration, and recrystallization occurred around the weld interface owing to the shear deformation and heating during ultrasonic welding as discussed by the authors.
Journal ArticleDOI
A review on dissimilar metals’ welding methods and mechanisms with interlayer
TL;DR: In this article, the authors reviewed the recent progress of dissimilar metals' welding methods and mechanisms with interlayer to offer a basis for the following research and discussed several criteria for the selection of interlayer, such as physical properties, metallurgical compatibility, mode, and thickness of the interlayer.
Journal ArticleDOI
Review of high-power ultrasound-industrial applications and measurement methods
TL;DR: This paper addresses two key aspects of high-power ultrasonic systems and focuses on industrial applications and documents the developing technology from its early cleaning applications through to the advanced sonochemistry, cutting, and water treatment applications used today.
Journal ArticleDOI
Brazing filler metals
TL;DR: Brazing is a 5000-year-old joining process which still meets advanced joining challenges today as mentioned in this paper, where components are joined by heating above the melting point of a filler metal placed between them.
References
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Journal ArticleDOI
Interstitial Atomic Diffusion Coefficients
Charles Wert,Clarence Zener +1 more
TL;DR: In this paper, an attempt is made to interpret the temperature independent factor of the previously determined diffusion coefficients of interstitial solute atoms in metals, and the associated entropy factors are consistent with the theoretical range.
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Light-weight structures produced by laser beam joining for future applications in automobile and aerospace industry
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Journal ArticleDOI
Microstructure characteristics in the interface zone of Ti/Al diffusion bonding
Ren Jiangwei,Li Yajiang,Feng Tao +2 more
TL;DR: In this paper, the vacuum diffusion bonding was used to join Ti/Al dissimilar metals by means of diffusion bonding after aluminizing on the surface of the Ti sheet, and the results showed that the interface zone included transition zone on the Ti substrate, aluminized coating and transition on the Al substrate.
Journal ArticleDOI
Formation process of the bonding joint in Ti/Al diffusion bonding
TL;DR: In this article, the process of joint formation can be separated into four stages, and the product of the diffusion reaction is only TiAl3 under a particular range of holding time.
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