Heat Transfer in Meshed Metallic Materials with Interchannel Transpiration and Two-Dimensional Intermesh Flow of a Heat-Transfer Fluid

Pelevin, F. V.

doi:10.1134/s0018151x18010133

Cited by 6 publications

(1 citation statement)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the calculation of temperature in the two-dimensional model is carried out only in the axial direction, by ignoring the computation along the longitudinal directions. A large number of experimental data show that the two-dimensional model cannot completely solve the current problem [ 16 , 17 ]. Therefore, we propose a three-dimensional electromagnetic-thermal coupling model of rail welding.…”

Section: Introductionmentioning

confidence: 99%

Modeling of Eddy Current Welding of Rail: Three-Dimensional Simulation

Sun

Liu

Song

et al. 2020

Entropy

View full text Add to dashboard Cite

In this paper is given a three-dimensional numerical simulation of the eddy current welding of rails where the longitudinal two directions are not ignored. In fact, usually it is considered a model where, in the two-dimensional numerical simulation of rail heat treatment, the longitudinal directions are ignored for the magnetic induction strength and temperature, and only the axial calculation is performed. Therefore, we propose the electromagnetic-thermal coupled three-dimensional model of eddy current welding. The induced eddy current heat is obtained by adding the z-axis spatial angle to the two-dimensional electromagnetic-thermal, thus obtaining some new results by coupling the numerical simulation and computations of the electric field and magnetic induction intensity of the three-dimensional model. Moreover, we have considered the objective function into a weak formulation. The three-dimensional model is then meshed by the finite element method. The electromagnetic-thermal coupling has been numerically computed, and the parametric dependence to the eddy current heating process has been fully studied. Through the numerical simulation with different current densities, frequencies, and distances, the most suitable heat treatment process of U75V rail is obtained.

show abstract

Section: Introductionmentioning

confidence: 99%

Modeling of Eddy Current Welding of Rail: Three-Dimensional Simulation

Sun

Liu

Song

et al. 2020

Entropy

View full text Add to dashboard Cite

show abstract

Manufacturing technology stamp-welded workpieces based on porous-net material with desired properties

Третьяков

Serezhkin

2019

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

The manufacture of stamp-welded and porous elements of porous-net material (PNM) from stainless steel 12H18N10T (0,12% C, 18% Cr, 10% Ni, 1% Ti) is difficult due to the low ductility under tension and the lack of weldability. It limits the use of PNM, although the fact that they may have the necessary technological and operational properties. The effect of porosity and heat conductivity anisotropy on the strength of welded splices of parts made of PNM have been established. Technologies of electron-beam welding (EBW) and sheet stamping of filter elements, which are implemented during the manufacture of prototypes of filter elements with a cleaning precision 10-12 microns, are presented.

show abstract

Practical usage of study results of the porous materials weldability from corrosion-resistant steels when creating stamp-welded products with desired properties

Tret'yakov

2020

IOP Conf. Ser.: Mater. Sci. Eng.

View full text Add to dashboard Cite

It is shown that a significant factor limiting the use of porous powder materials for the manufacture of die-welded products is low tensile plasticity and insufficient weldability. Porous meshing materials (PMM) made of steel 12Cr18Ni10Ti (X10CrNiTi18-10) have the necessary technological and operational properties for the manufacture of permeable die-welded elements. The conditions for the formation of a weld in PMM fusion welding are affected by the porosity and the ratio of the thermal conductivity coefficients along the thickness of the welded edges and in the direction perpendicular to the movement of the welding source. Technologies for argon-arc welding of a heat exchanger-evaporator sleeve, electron-beam welding of filter elements with a housing, which are implemented in the manufacture of preproduction models, have been developed.

show abstract

Heat Transfer in Meshed Metallic Materials with Interchannel Transpiration and Two-Dimensional Intermesh Flow of a Heat-Transfer Fluid

Cited by 6 publications

References 4 publications

Modeling of Eddy Current Welding of Rail: Three-Dimensional Simulation

Modeling of Eddy Current Welding of Rail: Three-Dimensional Simulation

Manufacturing technology stamp-welded workpieces based on porous-net material with desired properties

Practical usage of study results of the porous materials weldability from corrosion-resistant steels when creating stamp-welded products with desired properties

Contact Info

Product

Resources

About