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- Title
Numerical and experimental investigation in electromagnetic tube expansion with axial compression.
- Authors
Qiu, Li; Li, Yantao; Yu, Yijie; Xiao, Yao; Su, Pan; Xiong, Qi; Jiang, Jinbo; Li, Liang
- Abstract
In conventional electromagnetic tube expansion (EMTE), the wall thickness of the tube decreases significantly because the electromagnetic force is mainly in the radial direction. To solve this problem, this paper proposes a new method named electromagnetic tube expansion with axial compression (EMTEAC). Besides the driving coil, we introduce a coil at each end of the tube to generate axial electromagnetic force on the tube. We use the finite element method to analyze the distribution of the magnetic flux density and the electromagnetic force generated by the three coils in series. The simulation results show that the axial electromagnetic force generated by EMTEAC is about 7 times that generated by conventional electromagnetic tube expansion, which enhances material flow when the tube is expanding. The effectiveness of the method is verified by a series of experiments. The experimental results show that EMTEAC reduces the decrease in wall thickness from 27 to 19%.
- Subjects
MAGNETIC flux density; TUBES; VORTEX tubes; ELECTROMAGNETIC forces; FINITE element method; FORCE density
- Publication
International Journal of Advanced Manufacturing Technology, 2019, Vol 104, Issue 5-8, p3045
- ISSN
0268-3768
- Publication type
Article
- DOI
10.1007/s00170-019-04217-9