JPS57100822A - Electromagnetic forming device - Google Patents
Electromagnetic forming deviceInfo
- Publication number
- JPS57100822A JPS57100822A JP55177118A JP17711880A JPS57100822A JP S57100822 A JPS57100822 A JP S57100822A JP 55177118 A JP55177118 A JP 55177118A JP 17711880 A JP17711880 A JP 17711880A JP S57100822 A JPS57100822 A JP S57100822A
- Authority
- JP
- Japan
- Prior art keywords
- coils
- plane
- current
- closed curve
- flows
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To enable efficient working of small diameter tubes etc. by placing plural forming coils so that a part of each coil is positioned on the same plane, and combining them to form a closed curve in connection with each other.
CONSTITUTION: By combining coils 3, 3 coiled in a plane, working of a tube 4 which is much smaller in diameter than minimum allowable radius of curvature ϒ of an electric wire can be made. However, this is low in power efficiency. When this is made to a three-dimensional channel-shaped coil 5, magnetic fields M', M" caused by the current that flows BCDE and FDHA are reverse in direction and cancels each other and only a magnetic field M caused by the current that flows through AB, EF is obtained. Accordingly, when this is connected and brought into close contact as coils 6, 6 or 7, 7, the two coils come into contact on a common plane, and on that plane, a part of the two coils form a closed curve which is regarded as a square. When current is let flow in the direction of the arrow, a strong magnetic field of steep rise-up is formed in the closed curve.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55177118A JPS57100822A (en) | 1980-12-17 | 1980-12-17 | Electromagnetic forming device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55177118A JPS57100822A (en) | 1980-12-17 | 1980-12-17 | Electromagnetic forming device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57100822A true JPS57100822A (en) | 1982-06-23 |
JPH0223248B2 JPH0223248B2 (en) | 1990-05-23 |
Family
ID=16025474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55177118A Granted JPS57100822A (en) | 1980-12-17 | 1980-12-17 | Electromagnetic forming device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57100822A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007253182A (en) * | 2006-03-22 | 2007-10-04 | Kobe Steel Ltd | Electromagnetic forming apparatus |
JP2017006948A (en) * | 2015-06-22 | 2017-01-12 | 株式会社神戸製鋼所 | Electromagnetic molding coil and manufacturing method for automobile bumper stay using the same |
-
1980
- 1980-12-17 JP JP55177118A patent/JPS57100822A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007253182A (en) * | 2006-03-22 | 2007-10-04 | Kobe Steel Ltd | Electromagnetic forming apparatus |
JP2017006948A (en) * | 2015-06-22 | 2017-01-12 | 株式会社神戸製鋼所 | Electromagnetic molding coil and manufacturing method for automobile bumper stay using the same |
Also Published As
Publication number | Publication date |
---|---|
JPH0223248B2 (en) | 1990-05-23 |
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