Sequential coupling simulation for electromagnetic–mechanical tube compression by finite element analysis

Yuan, Huixin; Li, Chunfeng; Jiang-hua, Deng

doi:10.1016/j.jmatprotec.2008.02.061

Cited by 94 publications

(21 citation statements)

References 15 publications

(14 reference statements)

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“…The loose-coupled approach leads to an overestimation of the final deformation profile at simulation end, as shown in Figure 8 [6]. The reason is that the coil current and in turn also the magnetic pressure remain unaffected from the changing tube geometry, while in the sequential-coupled algorithm it is taken into account.…”

Section: Resultsmentioning

confidence: 99%

Comparison of two different simulation algorithms for the electromagnetic tube compression

et al. 2009

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Simulation tools especially for the electromagnetic forming process (EMF process) offer the opportunity to analyse the formation process and its effects already in the development stage. The EMF process is a high-dynamic process with high transformation velocities. The deformation results from the interaction of the electrical current in the forming coil and the induced eddy current in the workpiece, represented by the Lorentz force. Most of the simulation tools and models for the EMF process are limited to small deformations. The connection between electromagnetic field and spatiotemporal evolution of the deformation of the workpiece is not negligible for example for working out a door handle recess in the automotive industry. This paper presents a comparison of a custom loose-coupled simulation model and a more accurate sequential-coupled approach. The deviations between the two simulation models increase with time, so that the loose-coupled approach leads to an overestimation of the final deformation. The correspondence of the sequential-coupled simulation with the measurement result is much better than for the loose-coupled simulation.

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Section: Resultsmentioning

confidence: 99%

Comparison of two different simulation algorithms for the electromagnetic tube compression

et al. 2009

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“…They had compared the experimental values of electromagnetic formed tubes available in literature with results of simulation. Haiping (2009) investigated the tendency of homogeneous radial deformation during electromagnetic compression of aluminium tube through sequential coupling numerical simulation and experiments. They found that the tendency depends on the length ratio of tube to coil (R).…”

Section: Electromagnetic Tube Compressionmentioning

confidence: 99%

A Review on Electromagnetic Forming Process

Gayakwad

Dargar

Sharma

et al. 2014

Procedia Materials Science

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Electromagnetic forming (EMF) is a non-contact forming technique. It is an impulse or high-velocity forming method using pulsed magnetic field by application of Lorentz' forces to the work piece preferably made of highly electrically conductive material without having working medium and mechanical contact. Therefore, hollow profiles can be compressed or expanded as well as 2D or 3D sheet metal can be shaped, joined or cut. Electromagnetic forming process has very high strain rate and velocity in comparison to conventional process. Therefore, the Forming limits can be extended for several materials. In this paper, the state of the art of electromagnetic forming is reviewed subjected to following aspects-Research work on parameters related to acting load, Work piece deformation, Interaction between load parameters and work piece deformation, Behaviour of materials, Energy interaction during the process and Research regarding the principle and application of electromagnetic forming. On the basis of this study it is proposed why electromagnetic forming has not been widely initiated in industrial manufacturing processes up to now and how the challenges for its widespread applications can be meet.

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“…Furthermore, a sequential coupling mechanism is possible, taking into account, that the deformed work piece has an influence on the distribution of the magnetic field. Here in each time step the electromagnetic simulation and after computation of the Lorentz forces the mechanical simulation are carried out sequentially, demonstrated in [8][9][10][11]. In both cases, the discharging behaviour of the process needs to be analyzed during the electromagnetic simulation.…”

Section: Modeling the Processmentioning

confidence: 99%

Simulation approaches for pulse magnetic forming

Uhlmann

Ziefle

2011

Prod. Eng. Res. Devel.

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In recent years the pulse magnetic forming technology has gained an ever increasing attention, due to low energy consumption and the possibility of joining different metals. However, most of the applications were focused on forming of circumferential geometries. The possibility to form sheet metal plates opens a new field of applications for the pulse magnetic welding process, including the possibility of joining different metals by pulsed magnetic welding. The simulation tools and hardware evolving over the last years helped to develop new approaches in modeling the pulsed magnetic forming process. For modeling the discharge process an equivalent circuit is presented in this paper. The model is divided in a circuit part and a FEM model part. For validation, a comparison between simulated and measured results with respect to magnetic flux density and current is shown. Also, the dependence between energy balance and time discretization is shown for a sequential coupled simulation. Additionally a loose coupled explicit simulation of a pulsed magnetic welding process is presented

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Sequential coupling simulation for electromagnetic–mechanical tube compression by finite element analysis

Cited by 94 publications

References 15 publications

Comparison of two different simulation algorithms for the electromagnetic tube compression

Comparison of two different simulation algorithms for the electromagnetic tube compression

A Review on Electromagnetic Forming Process

Simulation approaches for pulse magnetic forming

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