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

Qiu, Li; Cao, Quanliang; Zhang, Wang; Abu-Siada, A.; Xiong, Qi; Chen, Zhong; Xiao, Yao; Wang, Bin; Li, Yantao; Jiang, Jinbo

doi:10.1109/access.2020.2969678

Cited by 24 publications

(17 citation statements)

References 20 publications

(24 reference statements)

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“…The physical process of the electromagnetic forming includes electric circuit, magnetic and mechanical fields. Finite element analysis has been widely used in the literature for the electromagnetic forming studies and obtained simulation results were in good agreement with the experimental results [28,29]. Therefore, COMSOL software is employed to develop an electromagnetic-structure twodimensional (2D) axisymmetric fully coupled model of the electromagnetic forming process of the plate [30].…”

Section: Emf Structure Coupling Model 1) 2d Axisymmetric Modelsupporting

confidence: 54%

Study of a Topology for Plate Electromagnetic Forming Based on Inner Reverse and Outer Positive Double Coil Loading

et al. 2020

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While electromagnetic forming is widely used for aluminum alloy materials, the nonuniformity of plate radial deformation is still a key issue that restricts the wide development of this technology. This paper presents a new electromagnetic-forming topology. The proposed topology comprises outer ring double-coil plates along with an inner loop driving coil of a small number of turns whose geometrical parameters are optimized to adjust the induced eddy current of the plate. Numerical simulation results show that the presence of an inner ring driving coil shapes the magnetic field in a manner that the radial electromagnetic force is concentrated close to the edge of the die which affects the center of the plate. With optimum design for the geometrical parameters of the proposed inner ring driving coil, the electromagnetic force distribution can be adjusted over the plate, resulting in an improved plate deformation with an increase in the maximum uniform deformation area from 24mm to 65mm. Results also show that the proposed inner and outer ring double coil loading method possesses superior advantages over the traditional flat spiral coil loading method.

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Section: Emf Structure Coupling Model 1) 2d Axisymmetric Modelsupporting

confidence: 54%

Study of a Topology for Plate Electromagnetic Forming Based on Inner Reverse and Outer Positive Double Coil Loading

et al. 2020

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“…Under the fully coupled model including circuit, electromagnetic field, and solid mechanical field, the geometric displacement and forming speed of the workpiece were comprehensively considered to further improve the calculation accuracy [26][27][28] . Besides, compared with loose coupling and sequential coupling, the fully coupled model has the highest computational accuracy [29] .…”

Section: The Full Coupling Simulation Methodsmentioning

confidence: 99%

Pitch Effect of Helical Coils of Electromagnetic Forming

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Zhou

Liang³

et al. 2020

IEEE Access

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“…Thus, finite element analysis is used to precisely simulate the electromagnetic forming physical process [22,23]. In this paper, COMSOL software is used to establish two-dimensional axisymmetric model of the electromagnetic tube expansion process [24,25]. Fig.…”

Section: Electromagnetic-structure Coupling Modelmentioning

confidence: 99%

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

et al. 2020

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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 industrial applications. This includes non-uniform axial deformation and poor forming performance such as wall thickness thinning. This paper proposes a costeffective solution for such issues through simultaneous radial and axial electromagnetic force loading using an auxiliary driving coil. In this regard, the influence of the auxiliary coil geometrical parameters on the electromagnetic force distribution and tube forming performance is investigated using electromagneticstructure coupling model of the bulging process. The robustness of the new proposed method is validated by comparing its electromagnetic force distribution and tube forming performance with the traditional cylindrical coil method, currently used by industry practice. Numerical results show that the introduction of the auxiliary coil may effectively weaken the radial electromagnetic force at the end of the tube and solve the uneven axial deformation issue. Based on the obtained results, the maximum uniform deformation area is increased from 6.9mm to 35.1mm. The tube relative wall thinning issue is reduced and the relative wall thickness reduction of the pipe is found to be 0.01661. The axial electromagnetic force can be further improved by adjusting the geometrical parameters of the coil and the proposed electromagnetic bulging can effectively increase the uniform deformation range of the tube.

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

Cited by 24 publications

References 20 publications

Study of a Topology for Plate Electromagnetic Forming Based on Inner Reverse and Outer Positive Double Coil Loading

Study of a Topology for Plate Electromagnetic Forming Based on Inner Reverse and Outer Positive Double Coil Loading

Pitch Effect of Helical Coils of Electromagnetic Forming

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

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