Results 11 to 20 of about 6,743 (266)

Comparison of Finite Element Methods in Fusion Welding Processes—A Review

open access: yesMetals, 2020
Currently, welding processes have become one of the most used methods for joining materials in all kinds of industries, thanks to properties such as high speed and high tensile strength.
Eva S. V. Marques   +2 more
doaj   +1 more source

Numerical simulation on temperature field and residual stress field in thermite welding of pipelines

open access: yesYou-qi chuyun, 2022
During the thermite welding of in-service oil pipelines, empirical values are often used for the dosage of aluminum powder welding flux, and the uncertainty of temperature and residual stress generated during the welding poses a serious threat to the ...
ZHAO Hongtao   +4 more
doaj   +1 more source

Numerical Simulation of Residual Stresses and Distortions of T-Joint Welding for Bridge Construction Application

open access: yesCommunications, 2016
Prediction of the distortions and residual stresses of the welded steel structures is still very important to reduction of the costs, mainly during the optimization of welding process.
Radoslav Konar   +2 more
doaj   +1 more source

Temperature Distribution of Vessel Tissue by High Frequency Electric Welding with Combination Optical Measure and Simulation

open access: yesBiosensors, 2022
In clinical surgery, high frequency electric welding is routinely utilized to seal and fuse soft tissues. This procedure denatures collagen by electrothermal coupling, resulting in the formation of new molecular crosslinks.
Hao Wang   +6 more
doaj   +1 more source

Metallurgical Effects of Niobium and Molybdenum on Heat-Affected Zone Toughness in Low-Carbon Steel

open access: yesApplied Sciences, 2019
Modern weldable high strength steel grades are typically based on low-carbon alloy concepts using microalloying for obtaining a good strength-toughness balance.
Hardy Mohrbacher
doaj   +1 more source

A novel systematic numerical approach on determination of heat source parameters in welding process

open access: yesJournal of Materials Research and Technology, 2022
The double-ellipsoidal heat source concept, established by Goldak, has been extensively employed to represent the energy distribution in a broad range of arc welding simulation processes.
Navid Moslemi   +8 more
doaj   +1 more source

Research and development of a heat-source model in numerical simulations for the arc welding process

open access: yes工程科学学报, 2018
As an effective computational method, the numerical simulation of welding processes has been widely used in evaluating welding temperature fields and residual stress distributions.
ZHU Zhi-ming   +3 more
doaj   +1 more source

Numerical Simulation and Experimental Verification of Laser Multi-Section Welding

open access: yesChinese Journal of Mechanical Engineering, 2022
To address the problems of large welding deformation and splashing in the resistance spot welding of the lubricating oil cooler plate, the laser spot welding was employed, instead of the resistance spot welding, and a novel laser spot welding was ...
Jia Liu   +4 more
doaj   +1 more source

Study on the Molten Pool Fluid Behavior of PAW-Cable-Type Seven-Wire GMAW Hybrid Welding

open access: yesCrystals, 2022
Plasma arc welding (PAW)-cable-type seven-wire GMAW (gas metal arc welding) hybrid welding is known as a high-efficiency welding combining plasma arc, GMAW arc and cable-type welding wire. In this study, numerical simulation via Fluent of the molten pool
Chao Zhang, Qingxian Hu, Juan Pu, Hao Wu
doaj   +1 more source

Misorientation Changes and Residual Stresses Redistribution after Welding. A Physical Simulation [PDF]

open access: yesMaterials Research, 2020
Welding is widely used in the manufacture of steel products. Metallurgical processes during welding produce residual stresses in different zones of the welded parts.
Tetyana Gurova   +5 more
doaj   +1 more source

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