Title:
ELECTROMAGNETIC FORMING METHOD
Document Type and Number:
WIPO Patent Application WO/2019/168136
Kind Code:
A1
Abstract:
In the present invention, pipe outer peripheral members are disposed in a plurality of locations on a pipe material. A coil unit having a conductor winding is disposed at one axial end of the pipe material, and a support member is disposed at the other axial end of the pipe material. The coil unit and the support member are moved relative to each other in the axial direction and the coil unit is coaxially retained in a distal end part of the support member, and the conductor winding of the coil unit is disposed inside the pipe material at positions coinciding with the pipe outer peripheral members. The pipe material is expanded by an electromagnetic force generated by energizing the coil unit, and the pipe outer peripheral members are fixed to the pipe material.
Inventors:
HIOKI RYUSUKE
IMAMURA YOSHIHAYA
IMAMURA YOSHIHAYA
Application Number:
PCT/JP2019/007963
Publication Date:
September 06, 2019
Filing Date:
February 28, 2019
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B21D39/08; B21D26/14; B21D39/06
Foreign References:
| JP2017131959A | 2017-08-03 | |||
| JP2008525198A | 2008-07-17 | |||
| CN103978086A | 2014-08-13 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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