Results 41 to 50 of about 152 (142)

Application of low transformation-temperature filler to reduce the residual stresses in welded component

open access: yesJournal of Mechanical Engineering and Sciences, 2019
Tensile residual stress is a major issue in integrity of the welded structures. Undesirable tensile residual stress in welding may reduce fracture toughness and fatigue life of welded structures.
K. Azizpour   +2 more
doaj   +1 more source

Оценка эффективности режимов термообработки сварного соединения при помощи Sysweld

open access: yesВестник Южно-Уральского государственного университета. Серия: Металлургия, 2015
Представлена методика определения поля остаточных напряжений после сварки и термообработки на примере сварного соединения пластин при помощи программного пакета Sysweld, реализующего метод конечных элементов. При расчётах были учтены как изменяющиеся в результате нагрева механические упругие и пластические характеристики стали, изменение структурного ...
Zagrebelnyy, S..   +2 more
openaire   +3 more sources

Numerical simulation and experimental validation of arc welding of DMR-249A steel

open access: yesDefence Technology, 2016
The thermo-mechanical attributes of DMR-249A steel weld joints manufactured by shielded metal arc welding (SMAW) and activated gas tungsten arc welding (A-GTAW) processes were studied using Finite Element Model (FEM) simulation. The thermal gradients and
Rishi Pamnani   +4 more
doaj   +1 more source

A Thermo-Metallurgical Model for Steel Cooling Behaviour : Proposition, Validation and Comparison with the Sysweld's Model [PDF]

open access: yesLe Journal de Physique IV, 1996
the aim of this work is to include the metallurgical behaviour of steels (and specifically their phase transformations) into thermo-mechanical studies. In this purpose, a new model of anisothermal phase transformations during the cooling stage is proposed.
Waeckel, F., Dupas, P., Andrieux, S.
openaire   +1 more source

Simulation Study on Multipassed Welding Distortion of Combined Joint Types using Thermo-Elastic-Plastic FEM

open access: yesThe Journal of Engineering Research, 2012
This paper investigates the angular distortion induced by the gas metal arc welding (GMAW) process on the combined butt and T-joint with a thickness of 9 mm. The material used in this study was low manganese carbon steel S355J2G3.
RN Lidam   +9 more
doaj   +1 more source

Prediction of numerical distortion after welding with various welding sequences and clampings

open access: yesMetalurgija, 2010
Welding simulation of a test cover for hydropower plant was made due to very large dimensions of the cover. The main aim was to predict distortion after welding in order to avoid machining the cover. Welding process was simulated with the Sysweld program
S. Kastelic, J. Medved, P. Mrvar
doaj  

Numerical Simulation of the Laser Welding Process for Diamond Saw Blades

open access: yesPhotonics
The development and application of laser welding transition layer technology is pivotal for manufacturing high-performance diamond saw blades. Despite its importance, there is a need for more precise modeling to optimize welding parameters and enhance ...
Qiang Xu   +4 more
doaj   +1 more source

Microstructures and Mechanical Properties of ZL114A Alloy Under Cold Welding State

open access: yesCailiao gongcheng, 2018
The microstructure and mechanical properties of ZL114A alloy after cold welding were studied by using SEM, EDS, OM, Vickers hardness and WDW-100KN universal tensile tester, the temperature field distribution was calculated by the SYSWELD FEM simulation ...
FAN Zhen-zhong   +5 more
doaj   +1 more source

Numerical Simulation of Stress Field in Laser Cladded Gate of Flat Gate Valve

open access: yesShiyou jixie, 2016
As a key member of gate valve, the abrasion and corrosion of the gate can severely hamper the application of flat gate valve in the oil industry.Based on thermal elastoplastic theory, laser cladding of the gate with Ni-based alloy was simulated by means ...
Cai Chunbo   +3 more
doaj  

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