Results 21 to 30 of about 240,163 (350)

Impact of driving forces on molten pool in gas metal arc welding

open access: yesWelding in the World, 2021
A numerical scrutiny was performed to analyze the effect of driving forces on molten pool in gas metal arc welding. In addition to the basic governing equations required for a general heat and mass transfer analysis by computational fluid dynamics, a ...
W. Cho, S. Na
semanticscholar   +1 more source

Relationship Between Metal Vapor in Arc and Droplet Transfer Mode in GMAW

open access: yesTaiyuan Ligong Daxue xuebao, 2022
The relationship between metal vapor in arc and droplet transfer mode in GMAW was reviewed. The results show that when welding with high current and corresponding welding parameters and different shielding gases, the conductivity of the vapor in arc ...
Xian SUN
doaj   +1 more source

The Effects of Process Parameters on Melt-pool Oscillatory Behaviour in Gas Tungsten Arc Welding [PDF]

open access: yesJ. 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

Effects of Gas Metal Arc Welding Variants on the Mechanical and Microstructural Characteristics of AISI 304 Stainless Steel [PDF]

open access: yes, 2023
The impact of variants of gas metal arc welding on the tensile properties of AISI-304 stainless steel is presented in this article. A single V-butt joint with a groove angle of 60° and thickness of 12 mm is fabricated by four gas metal arc welding ...
G, Magudeeeswaran, K, Karthick
core   +2 more sources

Numerical simulation of coupled arc-droplet-weld pool behaviors during compound magnetic field assisted gas metal arc welding

open access: yes, 2021
A compound external magnetic field (EMF) can be used to prevent weld bead defects by controlling the metal transfer and arc behaviors during high-speed gas metal arc welding.
Lin Wang   +3 more
semanticscholar   +1 more source

Effects of Active Gases on Droplet Transfer and Weld Morphology in Pulsed-Current NG-GMAW of Mild Steel

open access: yesChinese Journal of Mechanical Engineering, 2021
The current research of narrow-gap gas metal arc welding (NG-GMAW) primarily focuses on improving the sidewall fusion and avoiding the lack-of-fusion defect. However, the high cost and operation difficulty of the methods limit the industrial application.
Guoqiang Liu   +4 more
doaj   +1 more source

Effect of Chromium and Molybdenum Increment on the Crystal Structure, Nanoindentation, and Corrosion Properties of Cobalt‐Based Alloys

open access: yesphysica status solidi (a), Volume 219, Issue 23, December 2022., 2022
This study deals with the microstructural, nanoindentation and corrosion properties of the cobalt–chromium–molybdenum alloy system. Hardness increases linearly as a function of chromium, while reduced modulus shows maximum for Co30Cr5Mo and Co25Cr10Mo, respectively.
Shaukat Ali Lone   +3 more
wiley   +1 more source

Gas metal arc welding process parameter optimization for AA7075 T6

open access: yes, 2021
Aluminium alloy 7075 T6 weld joints having size of plates 125 mm ×100 mm × 10 mm experimented to investigate the effects of process input parameters on the thermal, mechanical properties of GMAW.
S. Jaju   +2 more
semanticscholar   +1 more source

Investigation of Diffusible Hydrogen Concentration in Gas Metal Arc Brazing by Carrier Gas Hot Extraction Method Referring to ISO 3690

open access: yesHydrogen, 2022
Arc brazing is an alternative joining technology well-suited for processing thermally sensitive materials and to produce mixed material connections.
Oliver Brätz   +3 more
doaj   +1 more source

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