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Weld pool dynamics and the formation of ripples in 3D gas metal arc welding [PDF]
, 2007 © 2008, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 InternationalThis article studies the transient weld pool dynamics under the periodical impingement of filler droplets that carry mass, momentum, thermal ...
Beavers +36 more
core +3 more sources
Fault welding by pseudotachylyte formation [PDF]
Geology, 2016 Abstract During earthquakes, melt produced by frictional heating can accumulate on slip surfaces and dramatically weaken faults by melt lubrication. Once seismic slip slows and arrests, the melt cools and solidifies to form pseudotachylytes, the presence of which is commonly used by geologists to infer earthquake slip on exhumed ancient ...
Jörg Renner +6 more
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Interface Formation during Collision Welding of Aluminum [PDF]
Metals, 2020 Collision welding is a high-speed joining technology based on the plastic deformation of at least one of the joining partners. During the process, several phenomena like the formation of a so-called jet and a cloud of particles occur and enable bond formation.
Benedikt Niessen +10 more
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Metals, 2023 In the welding process of thick plate narrow gap pulse gas metal arc welding (P-GMAW) overhead welding station, the arc characteristics and droplet transfer behavior that become more complex due to the combined effects of narrow gap groove, gravity, and ...
Yang Bao +3 more
doaj +1 more source
The Effects of Process Parameters on Melt-pool Oscillatory Behaviour in Gas Tungsten Arc Welding [PDF]
J. Phys. D: Appl. Phys. 54 275303 (2021), 2021 Internal flow behaviour and melt-pool surface oscillations during arc welding are complex and not yet fully understood. In the present work, high-fidelity numerical simulations are employed to describe the effects of welding position, sulphur concentration (60-300 ppm) and travel speed (1.25-5 mm/s) on molten metal flow dynamics in fully-penetrated ...
arxiv +1 more source
Metals, 2022 Laser-arc hybrid welding of AZ31B magnesium alloy was carried out in this paper, and the effects of welding parameters (laser power, welding speed, welding current) on weld formation, microstructure evolution and mechanical property were studied.
Sibo Wang, Chunyan Yan, Zhengjia Gu
doaj +1 more source
Metals, 2023 For the welding process of thick-walled structural components in liquid rocket engines, the activated-flux TIG method can effectively address issues such as the formation of intermetallic phases in the weld seams, thereby enhancing mechanical performance.
Shiqi Yue +5 more
doaj +1 more source
Effects of Sc on laser hot-wire welding performance of 7075 aluminum alloy
Materials Research Express, 2020 In order to clarify the effects of Sc modification on laser hot-wire welding performance of 7075 high strength aluminum alloys, the changing rules of weld formation, microstructure, element loss, mechanical performances and pores of weld joints were ...
Shichun Li +5 more
doaj +1 more source
Investigation of the weldability of copper to steel tubes using the electromagnetic welding process [PDF]
, 2017 Magnetic pulse welding is an innovative joining method which allows joining of dissimilar metal combinations. However, much remains unknown about the process and its parameters.
De Waele, Wim +2 more
core +1 more source
Weld Formation in Microgravity.
ISIJ International, 1998 In order to investigate the effect of gravity on the formation of a weld, gas tungsten arc (GTA) welding was performed both in a microgravity environment and in a terrestrial environment. The microgravity environment was produced for 10 sec with less than 10-5 G by a drop-shaft type microgravity system at Japan Microgravity Center (JAMIC). The material
Shoichiro Kaihara +4 more
openaire +3 more sources