Effects of current frequency on electromagnetic tube compression

Yuan, Huixin; Li, Chunfeng

doi:10.1016/j.jmatprotec.2008.03.011

Cited by 67 publications

(36 citation statements)

References 9 publications

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“…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. The simulation results clearly show that the slower discharge system 2 provides larger final deformations [3] in comparison with the faster system 1, for equal load energy. …”

Section: Simulation Modelsmentioning

confidence: 89%

Simulation Models of the Electromagnetic Forming Process

et al. 2009

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Suitable simulation approaches for the preliminary investigation of the electromagnetic metal forming process are presented. For this purpose an uncoupled (loose-coupled) simulation model is compared to a more rigorous sequential-coupled approach. As shown by examples, the connection between electromagnetic field and spatiotemporal evolution of the deformation of the workpiece cannot always be neglected to describe the electromagnetic forming process with adequate accuracy.

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Section: Simulation Modelsmentioning

confidence: 89%

Simulation Models of the Electromagnetic Forming Process

et al. 2009

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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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“…Electromagnetic forming, electrohydraulic forming and explosive forming are belong to high energy rate forming technology [1][2][3]. Electromagnetic forming appeared in 1950s is a method to form metal using electromagnetic force, because in the process of electromagnetic forming, forming load acts on the blank in the form of impulse, so also know as magnetic impulse forming [4].…”

Section: Introductionmentioning

confidence: 99%

“…Electromagnetic forming appeared in 1950s is a method to form metal using electromagnetic force, because in the process of electromagnetic forming, forming load acts on the blank in the form of impulse, so also know as magnetic impulse forming [4]. Research on electromagnetic forming mainly includes analysis of magnetic force, deformation analysis and formability research of material under high velocity, etc.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Forming with Solenoid Coil

Zhong

Chen

Liu

et al. 2015

2015 Seventh International Conference on Measuring Technology and Mechatronics Automation

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A loose coupling method is proposed to analyze electromagnetic forming with solenoid coil. Analysis of electromagnetic field is conducted by ANSYS/Emag, structural field is solved by explicit module ANSYS/Lsdyna, and data transfer from electromagnetic field o structural field is realized by APDL program Time-space distribution of magnetic pressure and discharge voltage, tube thickness and gap are obtained. Effect of discharge voltage, gap between coil and tube and tube thickness on electromagnetic forming are discussed respectively.

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Effects of current frequency on electromagnetic tube compression

Cited by 67 publications

References 9 publications

Simulation Models of the Electromagnetic Forming Process

Simulation Models of the Electromagnetic Forming Process

Simulation approaches for pulse magnetic forming

Electromagnetic Forming with Solenoid Coil

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