Optimization of the Induction Heating Process in Order to Achieve Uniform Surface Temperature

Jakubovičová, Lenka; Gašparec, Andrej; Kopas, Peter; Sága, Milan

doi:10.1016/j.proeng.2016.01.185

Cited by 31 publications

(17 citation statements)

References 11 publications

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“…If formation of elastic plastic state arises in any point of a body, then after removing of formation causes (power, distortive and thermal), some residual stresses stay in a body [13,20,24].…”

Section: Residual Stressesmentioning

confidence: 99%

Analysis of the distribution of temperature fields in the braked railway wheel

et al. 2018

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Abstract. The article deals with detection of reduced stress in a braked railway wheel, based on thermal transient analysis on virtual models, which influence the characteristics of the railway wheels. Structural analysis was performed by means of the ANSYS Multiphysics program system package. Thermal transient analysis deals with detection of temperature fields which are a result of braking by brake block. The applied heat flux represents the heat generated by friction of brake block. It is applied to a quarter model of the wheel to speed up the calculation. This analysis simulates two braking processes with subsequent cooling. Distribution of the equivalent stress was detected in the railway wheel cross section, at selected points. The input parameters were taken from the thermal transient analysis. These equivalent stresses result from thermal load.

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Section: Residual Stressesmentioning

confidence: 99%

Analysis of the distribution of temperature fields in the braked railway wheel

et al. 2018

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“…Variables with temperature thermo-physical properties and properties such as: laser beam power Q = 3.2 kW, welding speed v = 1.0 m/min, the beam radius r 0 = 1 mm, depth penetration s = 7 mm were used in numerical calculations. The analysis of thermal phenomena is made on the basis of the numerical solution of energy conservation equation together with Fourier law [12][13][14][15] using finite element method (FEM). The temperature field expressed in the criterion of weighted residuals method is described by the following equation:…”

Section: Exemplary Of Prediction Of Mechanical Properties In Welded Jmentioning

confidence: 99%

Numerical analysis of laser welding with consideration analytical methods of determining phase transformations and mechanical properties of welded joint

Piekarska

Goszczyńska-Króliszewska

Saternus

et al. 2018

MATEC Web Conf.

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The numerical analysis of laser welding process with consideration analytical methods determining phase transformations and mechanical properties of welded joints are presents in this paper. The analytical CCT diagram and final structural composition of S355 steel are presented. The empirical relations presents in paper are determined by chemical compositions investigated steel and cooling rate between temperatures 800-500°C (t8/5). Phase composition and mechanical properties each of structures of steel in weld and heat affected zone (HAZ) are determined on the basis of analytical methods. Laser welded flat is used in numerical simulations in ABAQUS. Mathematical modes of volumetric welding source are used in the calculations. Temperature fields, shape and size of melting zone for selected points in the cross-section of the joint are determined on the basis of thermal cycles obtained numerical.

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“…A method based on induction heating may have a good balance between process flexibility and energy efficiency [5][6][7]. A wide range of materials can be heated up by the induction heating method while a fast heating rate can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Heating schemes and process parameters of induction heating of aluminium sheets for hot stamping

Tian¹,

Wang²,

Anyasodor³

et al. 2019

Manufacturing Rev.

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Induction heating is one of the most popular metal heating technologies due to its high heating rate and high energy efficiency. This method is suitable for heating workpieces/blanks in different shapes, sizes and materials. Although induction heating of metal sheets has already been investigated by various research organizations and industrial companies, information concerning the induction heating of aluminium blanks is limited. Considering that hot stamping of aluminium sheets for automotive and aerospace applications is currently attracting a lot of attentions, it is timely important to gain more understanding on this technology by conducting in-depth investigations. Especially, investigations are required to address issues relating to the uneven temperature distributions developed in the metal sheets when they are heated, so that optimum designs could be obtained to improve the technology and its applications. This paper presents an in-depth analysis conducted recently for the investigation into heating schemes and process parameters in induction heating of aluminium sheets, mainly using 3D FE simulations, based on a general experimental validation. Different material, coil geometric and power-setting factors were considered during the modelling and analysis to examine their effects on the heating efficiency and developed temperature profiles. It was revealed from the simulations that design features of the induction coils affect the uniformity of the developed temperatures in the metal sheets. It is shown that an optimised combination of the coil design and the power setting could help to achieve higher heating rates, at the same time, also to achieve higher temperature-distribution uniformity. At the end of this paper, a discussion of practical factors that affect applications of induction heating of aluminium sheets for hot stamping applications is presented.

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Optimization of the Induction Heating Process in Order to Achieve Uniform Surface Temperature

Cited by 31 publications

References 11 publications

Analysis of the distribution of temperature fields in the braked railway wheel

Analysis of the distribution of temperature fields in the braked railway wheel

Numerical analysis of laser welding with consideration analytical methods of determining phase transformations and mechanical properties of welded joint

Heating schemes and process parameters of induction heating of aluminium sheets for hot stamping

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