Title:
電磁成形用コイル装置及び電磁成形材の製造方法
Document Type and Number:
Japanese Patent JP6541979
Kind Code:
B2
Abstract:
An electromagnetic forming coil device includes a conductor coil; and a magnetic field shaper including a tubular portion disposed in the conductor coil, and an end wall portion that extends from a base end portion thereof, which is at one end of the tubular portion in a longitudinal direction, to an extended end toward an axis of the conductor coil, the end wall portion having a cavity surface at the extended end, the cavity surface surrounding a workpiece. The tubular portion and the end wall portion are each divided into sections in the longitudinal direction, and the magnetic field shaper includes insulating layers disposed on the divided sections of each of the tubular portion and the end wall portion and on the cavity surface. The extended end of the end wall portion is disposed at a position protruding outward from a position of the conductor coil in the longitudinal direction.
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Inventors:
Takashi Goto
Kaizomi Kazumasa
Mihisa Imamura
Kaizomi Kazumasa
Mihisa Imamura
Application Number:
JP2015019662A
Publication Date:
July 10, 2019
Filing Date:
February 03, 2015
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
B21D26/14
Domestic Patent References:
| JP43024270B1 | ||||
| JP48010749B1 | ||||
| JP8010864A | ||||
| JP2007275909A | ||||
| JP2007520353A | ||||
| JP6304680A |
Foreign References:
| US20020003159 | ||||
| US4143532 |
Attorney, Agent or Firm:
Patent business corporation glory patent office