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Electromagnetic Force Distribution and Forming Performance in Electromagnetic Forming With Discretely Driven Rings [PDF]

open access: yesIEEE Access, 2020
Electromagnetic forming is a method of high-speed metal workpiece forming technology that uses electromagnetic force pulses generated from the interaction of the magnetic flux density and workpiece induced eddy current.
Li Qiu   +7 more
doaj   +4 more sources

Electromagnetic Force Distribution and Deformation Homogeneity of Electromagnetic Tube Expansion With a New Concave Coil Structure [PDF]

open access: yesIEEE Access, 2019
In the conventional electromagnetic tube expansion, the end effects generated by the conventional helix coil may lead to inhomogeneous tube deformation in the axial direction.
Li Qiu   +8 more
doaj   +4 more sources

Electromagnetic Force Distribution and Wall Thickness Reduction of Three-Coil Electromagnetic Tube Bulging With Axial Compression

open access: yesIEEE Access, 2020
In the conventional electromagnetic tube expansion, tube wall thickness tends to decrease significantly while the workpiece is expanded. This paper is aimed at introducing a new technique using three-coil electromagnetic tube bulging with axial ...
Li Qiu   +9 more
doaj   +4 more sources

Electromagnetic Force Distribution and Forming Performance in Electromagnetic Tube Expansion with Axial Compression [PDF]

open access: yesIEEE Access, 2020
Electromagnetic tube expansion has been given much attention due to its superior cold forming properties. The traditional electromagnetic coil is of single structure, which results in substantial tube wall thinning and mechanical strength reduction. This
Li Qiu   +7 more
doaj   +2 more sources

Parametric Simulation Analysis of the Electromagnetic Force Distribution and Formability of Tube Electromagnetic Bulging Based on Auxiliary Coil [PDF]

open access: yesIEEE Access, 2020
Tube electromagnetic bulging has been given much attention due to its superior advantages in the field of light alloy processing. However, the conventional tube electromagnetic bulging process exhibits some critical issues that restrict its wide ...
Li Qiu   +7 more
doaj   +2 more sources

Electromagnetic Force Distribution and Axial Deformation Uniformity Analysis of Dual-Coil Electromagnetic Tube Compression Method

open access: yesIEEE Access, 2020
In the conventional electromagnetic tube expansion, axial distribution of the electromagnetic force is not uniform along the workpiece. This results in uneven axial deformation of the deformed tube and restricts the full industrial implementation of this
Li Qiu   +5 more
doaj   +2 more sources

Research on Electromagnetic Force Distribution and Deformation Uniformity of Tube Electromagnetic Bulging Based on Concave Magnetic Field Shaper [PDF]

open access: yesIEEE Access, 2021
Tube uneven radial deformation along the axial direction is one of the main technical problems of tube electromagnetic bulging, which restricts the wide advancement of this technology. In order to improve the uniformity of tube radial deformation, a tube
Li Qiu   +7 more
doaj   +2 more sources

Investigation of Generator Rotor Dynamic Characteristics Under Unbalanced Electromagnetic Forces [PDF]

open access: yesSensors
With the increasing complexity of operating conditions and the trend toward structural compactness in generators, the unbalanced electromagnetic force induced by air-gap eccentricity has become a critical factor affecting rotor dynamic behavior and ...
Jiashun Dai   +5 more
doaj   +2 more sources

Simulation Analysis of the Electromagnetic Force Distribution and Formability Parameters for Sheet Metal Electromagnetic Bulging Using a New Magnetic Field Shaper [PDF]

open access: yesIEEE Access, 2021
While electromagnetic forming of aluminum alloy sheet has gained several advantages, the uneven radial deformation of the sheet is still one of the main drawback of this technology that calls for reliable and cost-effective solution. Aiming at this point,
Li Qiu   +6 more
doaj   +2 more sources

Electromagnetic-force distribution inside matter [PDF]

open access: yesPhysical Review A, 2013
Using the Finite Difference Time Domain method, we solve Maxwell's equations numerically and compute the distribution of electromagnetic fields and forces inside material media. The media are generally specified by their dielectric permittivity epsilon(w) and magnetic permeability mu(w), representing small, transparent dielectric and magnetic objects ...
Mansuripur, Masud   +2 more
openaire   +2 more sources

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