Analysis of Electromagnetic Force and Formability of Tube Electromagnetic Bulging Based on Convex Coil

Qiu, Li; Zhang, Wang; Abu-Siada, A.; Liu, Gang; Chen, Zhong; Wang, Yudong; Wang, Bin; Li, Yantao; Yu, Yijie

doi:10.1109/access.2020.2974758

Cited by 18 publications

(17 citation statements)

References 23 publications

(23 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, it is necessary to consider the effect of high speed and high strain rate on the material properties of the tube. In this paper, Cowper-Symonds material constitutive model is used to simulate AA5083-O tube based on (13) [31].…”

Section: Mechanical Field Analysismentioning

confidence: 99%

See 1 more Smart Citation

Numerical Analysis of Tube Expansion by Electromagnetic Forming Using Magnetic Field Shaper

et al. 2020

Self Cite

View full text Add to dashboard Cite

Uneven axial deformation is the current main issue of the tubes electromagnetic bulging technology which calls for innovative and cost-effective solutions. This paper presents a new method to overcome the above-mentioned issue based on employing a magnetic field shaper. The proposed magnetic field shaper is employed in the middle of the pipe and the driving coil. Induced eddy current control is realized by changing the structural parameters of the magnetic field shaper; thereby regulating the electromagnetic force distribution. The effectiveness of the proposed method is investigated through numerically comparing the electromagnetic performance of two EMF setups; traditional coil-based loading model and magnetic field shaper driving coil-based loading model proposed in this paper. The influence of the magnetic field shaper structural parameters on the tube electromagnetic forming performance is examined for optimum structure design. Results reveal that the concave profile of the radial electromagnetic force in the traditional loading method can be effectively improved using the proposed loading in this paper. The introduction of a magnetic field shaper not only changes the induced eddy current distribution, but also regulates the electromagnetic force profile in the axial-direction of the pipe which effectively enhances the uniform range of the pipe electromagnetic bulging, the maximum uniform deformation area is increased from 9mm to 35mm.

show abstract

Section: Mechanical Field Analysismentioning

confidence: 99%

“…where σ is the flow stress of the pipe material under highspeed deformation, P is the viscosity of the pipe material, m is the strain rate hardening of the material, and σys is the flow stress under quasi-static conditions. Under normal circumstances, P = 6500 and m = 0.25 [31].…”

Section: Mechanical Field Analysismentioning

confidence: 99%

Numerical Analysis of Tube Expansion by Electromagnetic Forming Using Magnetic Field Shaper

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…where Jφ is the induced eddy current density of the plate in the circumferential direction, and Bz and Br are respectively the axial and the radial components of the magnetic flux density [4].…”

Section: Emf Principle and The Proposed Topologymentioning

confidence: 99%

“…With the increased trend of employing lightweight, highstrength and low-density materials in various industrial applications, forming technology has been given much attention [1][2][3]. The conventional quasi-static stamping process results in poor formability of the aluminum alloy sheet, especially when the drawing ratio increases [4,5]. Electromagnetic forming (EMF) is based on using pulsed electromagnetic-force to realize the processing of a metal plate [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2020

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…In general, two main approaches have been followed for calculating forces in electromechanical applications: finite element (FEA) simulations and analytical models. FEA approaches have been extensively used for analyzing both electrical machines [19]- [22] and industrial induction heating applications [23]- [26]. Considering domestic induction applications and FEA approaches, a preliminary analysis of forces on the cookware was presented in [27].…”

Section: Introductionmentioning

confidence: 99%

Analysis and Modeling of the Forces Exerted on the Cookware in Induction Heating Applications

et al. 2020

View full text Add to dashboard Cite

We present a semianalytical model for calculating the forces exerted on cookware in domestic induction heating applications. The developed model is based on the Maxwell's stress tensor and is also based on the existing semianalytic expressions of the electromagnetic fields in planar induction heating systems, which are expressed in terms of Fourier-Bessel series. Taking advantage of the axial symmetry of usual domestic induction heating systems, the flux of the vertical component of the Maxwell's stress tensor is analytically integrated and the vertical force is obtained. The proposed model captures both eddy currents and magnetization that occurs in typical ferromagnetic cookware. The model is verified by means of twodimensional Finite Element simulations and also is tested by means of measurements of the change of the weight experimented by cookware due to the forces during the heating process. INDEX TERMS Induction heating, appliances, electromagnetic forces, Maxwell's stress tensor, electromagnetic properties.

show abstract

Analysis of Electromagnetic Force and Formability of Tube Electromagnetic Bulging Based on Convex Coil

Cited by 18 publications

References 23 publications

Numerical Analysis of Tube Expansion by Electromagnetic Forming Using Magnetic Field Shaper

Numerical Analysis of Tube Expansion by Electromagnetic Forming Using Magnetic Field Shaper

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

Analysis and Modeling of the Forces Exerted on the Cookware in Induction Heating Applications

Contact Info

Product

Resources

About