An Electromagnetic and Thermo-Mechanical Analysis of High Frequency Induction Heating for Steel Plate Bending

2006 ◽  
Vol 326-328 ◽  
pp. 1283-1286 ◽  
Author(s):  
Jang Hyun Lee ◽  
Kyung Ho Lee ◽  
Jong Sung Yun
Keyword(s):  
Electromagnetic Field ◽  
Induction Heating ◽  
Eddy Currents ◽  
Steel Plate ◽  
Local Heating ◽  
Mechanical Analysis ◽  
Plate Bending ◽  
Heating Equipment ◽  
Process Comparison ◽  
Thermal Mechanical Analysis

Eddy currents of electromagnetic field leads not only to the local heating of plate but also to the thermal-elasto-plastic deformation in the induction heating. It is necessary to have a simulation model to attract the possibility of induction heating equipment and to study the deformation behavior. The goal of present paper is to investigate the possibility of induction heating equipment for steel plate bending. The residual stress distribution of induction heating is investigated by an electromagnetic analysis in conjunction with thermal-mechanical analysis. A computational model based on FEA is used to study the electromagnetic field and thermalmechanical process. Comparison with the residual strain fields and deformation of both heating shows that the induction heating has good similarity with the gas heating.

scholarly journals Low-temperature induction heating of flat metal objects in a traveling electromagnetic field

2022 ◽  
Vol 1211 (1) ◽  
pp. 012015
Author(s):  
A N Kachanov ◽  
Y S Stepanov ◽  
N A Kachanov ◽  
V A Chernyshov ◽  
D A Korenkov
Keyword(s):  
Electromagnetic Field ◽  
Low Temperature ◽  
Edge Effect ◽  
Induction Heating ◽  
Eddy Currents ◽  
Magnetic Circuit ◽  
Heating System ◽  
Open Circuit ◽  
Longitudinal Edge ◽  
Temperature Induction

Abstract The article discusses possible options for a low-temperature induction heating system (LTIHS) of flat metal products in a traveling electromagnetic field. The problem of calculating eddy currents, active and reactive powers induced in a heated flat object, as well as electromagnetic forces acting on the object moving it in a given direction, is posed and solved. A mathematical model has been developed that takes into account the dependence of the influence on the main parameters of the electromagnetic field of the following factors: geometric dimensions of the air gap between the poles of the magnetic circuit and the heated flat body; the longitudinal edge effect caused by the open circuit of the magnetic circuit of the inductor, as well as the transverse edge effect associated with the appearance of the longitudinal components of eddy currents in a heated flat object. The solution of particular problems of LTIHS in one- and two-dimensional formulation allows them to be simplified and to perform calculations for various design variants of induction heating devices with a traveling electromagnetic field, using a one-dimensional model that explicitly takes into account the features of electromagnetic processes in the systems under study.

Technical Parameter Analysis of High-Frequency Induction Heating Applied to Steel Plate Bending

2011 ◽  
Vol 27 (03) ◽  
pp. 99-110 ◽  
Author(s):  
Xue-biao Zhang ◽  
Yu-jun Liu ◽  
Yu-long Yang ◽  
Zhuo-shang Ji ◽  
Yan-ping Deng
Keyword(s):  
Induction Heating ◽  
High Frequency ◽  
Large Scale ◽  
Steel Plate ◽  
Element Model ◽  
Parameter Analysis ◽  
Heating Process ◽  
Plate Bending ◽  
Technical Parameter ◽  
High Frequency Induction

This paper describes the study of hull plate forming by high-frequency induction heating. A finite element model of static large-scale heating is performed and verified by experiments. It can be proposed to be a powerful alternative tool to the actual induction heating process. Parameters influencing the temperature and deformation are deduced.

Effects of Local Heating on Material Flow in Free Forming Process

2006 ◽  
Author(s):  
O. Okman ◽  
M. O¨zmen ◽  
H. Huwiler ◽  
A. E. Tekkaya
Keyword(s):  
Induction Heating ◽  
Material Flow ◽  
Failure Modes ◽  
Local Heating ◽  
Mechanical Analysis ◽  
Local Deformation ◽  
Forming Process ◽  
Manufacturing Method ◽  
Laser Beam Scanning ◽  
Electromagnetic Calculations

A novel manufacturing method is investigated, in which a proper temperature gradient is created within workpiece in order to control local material flow during free forming. The main motivation is to produce complicated shapes by reducing the flow stress on the regions, where local deformation is desired to take place. A sufficient control of temperature within the material results in the required product shape even in the absence of complicated dies. Besides the lower tooling costs the process provides, the heat energy applied to the workpiece is less than that in conventional hot forming processes, which is currently a strong alternative for manufacturing of such products. In the study, heating is realized by means of induction heating and laser beam scanning. The process is investigated experimentally on circular cylinder specimens made of different materials, namely Ti6Al4V, X5CrNi18/9 and 16MnCr5. The effect of process parameters on the mode of deformation is analyzed by finite element method (FEM). The thermo-mechanical analysis of induction heating is supported by electromagnetic calculations. The two alternative heating methods are compared. Affects of heating on multiple locations is investigated for induction heating applications. A brief overview of the process is presented and conclusions are drawn on the effectiveness, limitations, failure modes and applicability of the process.

scholarly journals Numerical aspects for efficient welding computational mechanics

2014 ◽  
Vol 18 (suppl.1) ◽  
pp. 139-148
Author(s):  
Tarek Aburuga ◽  
Aleksandar Sedmak ◽  
Zoran Radakovic
Keyword(s):  
Residual Stresses ◽  
Three Dimensional ◽  
Shell Element ◽  
Element Model ◽  
Mechanical Analysis ◽  
Tensile Test Specimen ◽  
Integrity Assessment ◽  
Mass Scaling ◽  
Three Dimensional Models ◽  
Thermal Mechanical Analysis

The effect of the residual stresses and strains is one of the most important parameter in the structure integrity assessment. A finite element model is constructed in order to simulate the multi passes mismatched submerged arc welding SAW which used in the welded tensile test specimen. Sequentially coupled thermal mechanical analysis is done by using ABAQUS software for calculating the residual stresses and distortion due to welding. In this work, three main issues were studied in order to reduce the time consuming during welding simulation which is the major problem in the computational welding mechanics (CWM). The first issue is dimensionality of the problem. Both two- and three-dimensional models are constructed for the same analysis type, shell element for two dimension simulation shows good performance comparing with brick element. The conventional method to calculate residual stress is by using implicit scheme that because of the welding and cooling time is relatively high. In this work, the author shows that it could use the explicit scheme with the mass scaling technique, and time consuming during the analysis will be reduced very efficiently. By using this new technique, it will be possible to simulate relatively large three dimensional structures.

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