Effect of coil length and relative position on electromagnetic tube bulging

  • Zhong Li
  • Shujie Liu
  • Junping Li
  • Mei Wang


A loose coupling method is adopted to study electromagnetic tube bulging, and effect of processing parameters on electromagnetic tube bulging is analyzed. The results show that critical relative length increases with the increasing of coil length, when coil approaches infinite length, critical length approximates 1. With the rise of relative position, radial magnetic pressure acting on the top end of tube increases, when relative position is equal or greater than 30 mm, radial magnetic pressure of tube top end remains unvaried. Relative position of 30–50 mm is optimal position for electromagnetic tube flanging.


Loose coupling Electromagnetic tube bulging Critical relative length Electromagnetic flanging 


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The authors would like to thank Ministry of Education of the People’s Republic of China for their support.

Funding information

The project was sponsored by the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry (No. [2014]1685, China).


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Copyright information

© Springer-Verlag London Ltd., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Rongcheng Campus, Harbin University of Science and TechnologyRongchengChina

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