scholarly journals Magnetic pulse forming behavior and the high speed deformation structure of A1050 aluminum sheet

2021 ◽  
Vol 71 (1) ◽  
pp. 51-59
Author(s):  
Takashi Kambe ◽  
Shinji Muraishi ◽  
Shinji Kumai
Keyword(s):  
High Speed ◽  
Aluminum Sheet ◽  
Magnetic Pulse ◽  
Deformation Structure ◽  
Magnetic Pulse Forming ◽  
High Speed Deformation

scholarly journals Experimental and Numerical Analyses of Magnetic Pulse Forming of A1050 Aluminum Sheet

2020 ◽  
Vol 61 (2) ◽  
pp. 346-354
Author(s):  
Takashi Kambe ◽  
Yasutaka Kedo ◽  
Shinji Muraishi ◽  
Shinji Kumai
Keyword(s):  
Numerical Analyses ◽  
Aluminum Sheet ◽  
Magnetic Pulse ◽  
Magnetic Pulse Forming

Magnetic Pulse Forming of Thin-Aluminum Sheet Using Bar-Forming Coil

2011 ◽  
Vol 337 ◽  
pp. 621-624 ◽  
Author(s):  
Ji Yeon Shim ◽  
Ill Soo Kim ◽  
Dong Hwan Park ◽  
Bong Yong Kang
Keyword(s):  
Intelligent System ◽  
Analysis Data ◽  
Aluminum Sheet ◽  
Design Parameters ◽  
Fe Model ◽  
Magnetic Pulse ◽  
Forming Process ◽  
Thin Aluminum ◽  
Magnetic Pulse Forming ◽  
Measured Strain

Generally a MPF(Magnetic pulse forming) process refers to the high velocity and high strain rate deformation of a low-ductility materials driven by electromagnetic forces that are generated by the rapid discharge current through the forming coil. The goal of this study was to investigate the main design parameter in MPF. To achieve the above objectives, An intelligent system which consisted of thin 5053 aluminum sheet and bar forming coil was employed for the experiment. The measured strain data have been analyzed using the developed electromagnetic FE-model. The analysis data showed that the uniform electromagnetic force is one of most important design parameters in MPF process.

scholarly journals An Efficient Computational Model for Magnetic Pulse Forming of Thin Structures

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7645
Author(s):  
Mohamed Mahmoud ◽  
François Bay ◽  
Daniel Pino Muñoz
Keyword(s):  
High Speed ◽  
Computation Time ◽  
Shell Element ◽  
Computational Time ◽  
Magnetic Pulse ◽  
Element Analysis ◽  
Shell Elements ◽  
Novel Approach ◽  
Magnetic Pulse Forming ◽  
High Speed Forming

Electromagnetic forming (EMF) is one of the most popular high-speed forming processes for sheet metals. However, modeling this process in 3D often requires huge computational time since it deals with a strongly coupled multi-physics problem. The numerical tools that are capable of modeling this process rely either on shell elements-based approaches or on full 3D elements-based approaches. The former leads to reduced computational time at the expense of the accuracy, while the latter favors accuracy over computation time. Herein, a novel approach was developed to reduce CPU time while maintaining reasonable accuracy through building upon a 3D finite element analysis toolbox which was developed in CEMEF. This toolbox was used to solve magnetic pulse forming (MPF) of thin sheets. The problem was simulated under different conditions and the results were analyzed in-depth. Innovative techniques, such as developing a termination criterion and using adaptive re-meshing, were devised to overcome the encountered problems. Moreover, a solid shell element was implemented and tested for thin structure problems and its applicability was verified. The results of this element type were comparable to the results of the standard tetrahedral MINI element but with reduced simulation time.

scholarly journals High-speed deformation of copper samples with the use of magnetic pulse method

2018 ◽  
Vol 145 ◽  
pp. 05006 ◽  
Author(s):  
Sergey Krivosheev ◽  
Sergey Magazinov ◽  
Dmitrii Alekseev
Keyword(s):  
High Speed ◽  
Pulse Method ◽  
Magnetic Pulse ◽  
Strain Rates ◽  
High Deformation ◽  
Induced Currents ◽  
Deformation Modes ◽  
The Magnetic Field ◽  
Preliminary Phase ◽  
High Speed Deformation

The possibility of using the magnetic pulse method for studying the high-speed deformation modes of metals with strain rates up to 100,000 1/s without a preliminary phase of material compression under loading in the microsecond range of durations is shown. 3D calculation of the magnetic field and deformation modes has shown the possibility of creating loading schemes that are free of induced currents in the sample in the zone of maximum mechanical stresses. The first experiments show the need for verification of the Jones-Cook model at high deformation rates.

Experimental investigation and optimization on field shaper structure parameters in magnetic pulse welding

2021 ◽  
pp. 095440542110148
Author(s):  
Yingzi Chen ◽  
Zhiyuan Yang ◽  
Wenxiong Peng ◽  
Huaiqing Zhang
Keyword(s):  
Magnetic Field ◽  
High Speed ◽  
Light Metal ◽  
Magnetic Pulse ◽  
Cross Sectional ◽  
Magnetic Pulse Welding ◽  
Pulse Welding ◽  
Sectional Shape ◽  
Welding System ◽  
The Magnetic Field

Magnetic pulse welding is a high-speed welding technology, which is suitable for welding light metal materials. In the magnetic pulse welding system, the field shaper can increase the service life of the coil and contribute to concentrating the magnetic field in the welding area. Therefore, optimizing the structure of the field shaper can effectively improve the efficiency of the system. This paper analyzed the influence of cross-sectional shape and inner angle of the field shaper on the ability of concentrating magnetic field via COMSOL software. The structural strength of various field shapers was also analyzed in ABAQUS. Simulation results show that the inner edge of the field shaper directly affects the deformation and welding effect of the tube. So, a new shape of field shaper was proposed and the experimental results prove that the new field shaper has better performance than the conventional field shaper.

Mechanisms of high-speed deformation of polycrystalline copper

2017 ◽  
Vol 59 (5) ◽  
pp. 920-928 ◽  
Author(s):  
R. G. Chembarisova ◽  
Y. Dong ◽  
I. V. Alexandrov
Keyword(s):  
High Speed ◽  
Polycrystalline Copper ◽  
High Speed Deformation
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