Results 11 to 20 of about 20,755 (235)

Advances in ultrasonic welding of lightweight alloys: A review

open access: yesHigh Temperature Materials and Processes, 2023
The lightweight alloy sheet materials have been widely used in industries such as automobiles, aviation, and aerospace. However, there are huge challenges in the structural joining process.
Abbas Zeshan   +4 more
doaj   +1 more source

Achieving polycrystalline transformation and microstructural segregation reduction of nickel-based single crystal super-alloys by ultrasonic pulse arc welding

open access: yesJournal of Materials Research and Technology, 2023
The sub-grains coarsening and low melting point eutectic are the internal causes of cracking of single crystal super-alloys in welding. Aiming to overcome two internal causes, in this paper, the effect of ultrasonic pulse arc welding on the grains, sub ...
Yajie Wang   +7 more
doaj   +1 more source

Interface Microstructures and Bond Formation in Ultrasonic Consolidation [PDF]

open access: yes, 2007
The quality of ultrasonically consolidated parts critically depends on the bond quality between individual metal foils. This necessitates a detailed understanding of interface microstructures and ultrasonic bonding mechanism.
Adams, B. L.   +5 more
core   +1 more source

Mechanism and Influencing Factors of Frictional Energy Dissipation in Multilayer Ultrasonic Welding

open access: yesShanghai Jiaotong Daxue xuebao, 2022
In multilayer ultrasonic welding, the sonotrode presses on metal sheets and drives the sheets to produce ultrasonic vibration. Then, each contact interface generates heat, produces plastic deformation, and forms solid-state bonding.
MA Zunnong, ZHANG Yansong, ZHAO Yixi
doaj   +1 more source

Improving Linear Weld Density in Ultrasonically Consolidated Parts [PDF]

open access: yes, 2006
Ultrasonic consolidation is a novel additive manufacturing process with immense potential for fabrication of complex shaped three-dimensional metallic objects from metal foils.
George, J.   +4 more
core   +1 more source

Technology of thermal welding with ultrasonic weld joint treatment as applied to NPP formworks

open access: yesNuclear Energy and Technology, 2017
Increasing the strength, reliability and durability of welded structures is an important problem in welding engineering. A significant influence is exerted by residual stresses.
S.I. Minin
doaj   +1 more source

Investigation on welding defects of alloys using TIG and MIG welding

open access: yesHybrid Advances, 2023
This study is to look at the welding procedures of tungsten inert gas (TIG) and metal inert gas (MIG). This study focuses on welding flaws with different types of welding joints for AISI-1020 mild steel when welding with tungsten inert gas (TIG) and ...
Syed Rashedul Haque
doaj   +1 more source

Multi-Material Ultrasonic Consolidation [PDF]

open access: yes, 2006
Ultrasonic consolidation (UC) is a recently developed direct metal solid freeform fabrication process. While the process has been well-demonstrated for part fabrication in Al alloy 3003 H18, including with intricate cooling channels, some of the ...
Janaki Ram, G. D.   +2 more
core   +1 more source

Residual stress measurement round robin on an electron beam welded joint between austenitic stainless steel 316L(N) and ferritic steel P91 [PDF]

open access: yes, 2017
This paper is a research output of DMW-Creep project which is part of a national UK programme through the RCUK Energy programme and India's Department of Atomic Energy.
A.K. Bhaduri   +57 more
core   +3 more sources

The Effect of Ultrasonic Energy on Joint Characterization in Ultrasonic Spot Welding Multilayer Tabs Used in Lithium-ion Battery Manufacturing [PDF]

open access: yesMATEC Web of Conferences, 2019
Lithium-ion battery for electric vehicles contains a large number of battery tabs with multiple and thin sheets. Dissimilar metals are often used for different electrodes, for example, the copper and nickel are often used for negative electrode and the ...
Ma Z.N., Zhang Y.S.
doaj   +1 more source

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