Results 71 to 80 of about 1,867,090 (86)
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Metals and Materials International, 2008
The expansion of a metal tube by means of an electromagnetic forming (EMF) process is attractive because EMF has a high forming rate and can reduce residual stress. The forming forces in EMF are Lorentz forces. They are derived from a repulsive interaction between a transient electric current induced in a coil with the aid of a capacitor bank and an ...
Chansun Shin +2 more
exaly +2 more sources
The expansion of a metal tube by means of an electromagnetic forming (EMF) process is attractive because EMF has a high forming rate and can reduce residual stress. The forming forces in EMF are Lorentz forces. They are derived from a repulsive interaction between a transient electric current induced in a coil with the aid of a capacitor bank and an ...
Chansun Shin +2 more
exaly +2 more sources
International Journal of Impact Engineering, 2016
High speed forming processes such as magnetic pulse forming are gaining interest in the sheet metal industry. Their design and development require specific effort on numerical modelling as well as on the characterization of the high strain-rate mechanical behaviour of metals.
Nicolas Jacques, Michel Arrigoni
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High speed forming processes such as magnetic pulse forming are gaining interest in the sheet metal industry. Their design and development require specific effort on numerical modelling as well as on the characterization of the high strain-rate mechanical behaviour of metals.
Nicolas Jacques, Michel Arrigoni
exaly +3 more sources
Analysis Model And Numerical Investigation Of Electromagnetic Tube Expansion With Field Concentrator
2023 20th International Multi-Conference on Systems, Signals & Devices (SSD), 2023Mohamed Rachid Mekideche
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International Journal of Materials and Product Technology, 2017
Chandrahas Patel +2 more
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Chandrahas Patel +2 more
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A FINITE ELEMENT ANALYSIS OF ELECTROMAGNETIC FORMING FOR TUBE EXPANSION
Journal of Engineering Materials and Technology, 1991The electromagnetic field and dynamic deformation analyses for tube expansion by electromagnetic forming were performed by the finite element method. A realistic pressure distribution was calculated by taking into account both coil and workpiece. The calculated values of displacement along the tube axis and with time were in very good agreement with ...
Sung Ho Lee, Dong Nyung Lee
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THE EXPANSION OF A THIN FREE TUBE IN ELECTROMAGNETIC FORMING
International Journal of Production Research, 1970The analysis of electromagnetic forming has been extended to allow for an approximate evaluation of axial inertia, strain rate and temperature effects. Good agreement is obtained with published measurements of time varying displacement and velocity.
G. K. LAL, M. J. HILLIER
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Estimation of the magnetic pressure in tube expansion by electromagnetic forming
Journal of Materials Processing Technology, 1996Abstract In the analysis of electromagnetic forming processes it is essential to be able to estimate the magnetic pressure acting on the workpiece. For this purpose the analysis of the equivalent electric circuit has been used widely. In this approach, it was assumed that the workpiece and the forming coil are so long that the end effect can be ...
Sung Ho Lee, Dong Nyung Lee
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Numerical Simulation Study of a Conical Magnetizer-Based Tube Electromagnetic Expansion Device
2024 6th Asia Energy and Electrical Engineering Symposium (AEEES)Qilong Jiang
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Study on the homogeneity of deformation under electromagnetic expansion of metal tube
International Journal of Applied Electromagnetics and Mechanics, 2013In this paper, a 3D numerical simulation method was put forward by coupling magnetic-structural fields, and its reliability was verified through comparing with the experimental data offered by Suzuki. According to the characteristics of electromagnetic expansion of metal tube, this simulation method was used to analyze the uniformity of tube expansion ...
Li, Fen-Qiang +4 more
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International Journal of Material Forming, 2009
Electromagnetic forming (EMF) is a non conventional metal working process that relies on the use of electromagnetic forces to deform metallic workpieces at high speeds. This study is divided out into three parts. The first part presents a method for calculating the process parameters; namely the electromagnetic problem.
Siddiqui, M.A. +3 more
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Electromagnetic forming (EMF) is a non conventional metal working process that relies on the use of electromagnetic forces to deform metallic workpieces at high speeds. This study is divided out into three parts. The first part presents a method for calculating the process parameters; namely the electromagnetic problem.
Siddiqui, M.A. +3 more
openaire +2 more sources