Results 11 to 20 of about 6,382 (265)

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

Influence of Corrosion Rate on the Double Butt Welding Shapes Design for Low Carbon Steel [PDF]

open access: yesEngineering and Technology Journal, 2011
The aim of this paper is to demonstrate the influence of butt welding shapes on the corrosion rate, microstructure and temperature of carbon steel type St37.The double butt welding was performed by V angles 15°,30° and 45°.
Hani Aziz Ameen   +2 more
doaj   +1 more source

Heat Transfer and Structural Characteristics of Dissimilar Joints Joining Ti-64 and NiTi via Laser Welding

open access: yesEnergies, 2022
This study investigates the thermal-stress characteristics of a bi-metallic Ti-6Al-4V-Nitinol butt joints manufactured via laser welding. Particularly, the thermal profile along the weld interface and the deformation profile of the finished welded ...
Aspen Glaspell   +5 more
doaj   +1 more source

Pulsed GMAW-based WAAM–Influence of droplet detachment mode on the geometry and mechanical properties of 308 L stainless steel

open access: yesJournal of Advanced Joining Processes
This study aimed to introduce pulsed gas metal arc welding (GMAW)-based wire arc additive manufacturing (WAAM) for the deposition of 308 L stainless steel. Then, the influence of the different droplet detachment modes on the geometric characteristics and
R.F. Rezende   +3 more
doaj   +1 more source

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