GB1146989A - Improvements in or relating to magnetic forming apparatus - Google Patents
Improvements in or relating to magnetic forming apparatusInfo
- Publication number
- GB1146989A GB1146989A GB49169/67A GB4916967A GB1146989A GB 1146989 A GB1146989 A GB 1146989A GB 49169/67 A GB49169/67 A GB 49169/67A GB 4916967 A GB4916967 A GB 4916967A GB 1146989 A GB1146989 A GB 1146989A
- Authority
- GB
- United Kingdom
- Prior art keywords
- segment
- gap
- magnetic field
- current
- relating
- 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.)
- Expired
Links
- 238000005219 brazing Methods 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 239000002826 coolant Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
1,146,989. Electromagnetic forming. GULF GENERAL ATOMIC Inc. 30 Oct., 1967 [7 Nov., 1966], No. 49169/67. Heading B3Q. An electromagnetic forming element 11 comprises a surface 12 defining a current path for producing a magnetic field, a second surface 50 contiguous with one end of surface 12 for conducting current to or from surface 12, a third surface 17 opposite surface 12, and a recess 14, 16 proximate the second surface 50 and extending from surface 17 towards surface 12 to concentrate current towards surface 12 so that the strength of the forming magnetic field is substantially undiminished near and at the corner between surface 12 and the second surface. The element may be a field shaper or, as shown, a single-loop coil for working internally (shown) or externally of a workpiece and having at least one gap 13 the surfaces of which are the second surfaces 50. The element includes a segment 18 and a segment 19 containing the gap 13, the segments being machined from a single piece of metal or formed separately and joined by brazing. Supply lugs 21, 22 are provided and a coolant passage 29 closed by a brazed-on cover (17), Fig. 3 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US59237866A | 1966-11-07 | 1966-11-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1146989A true GB1146989A (en) | 1969-03-26 |
Family
ID=24370423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49169/67A Expired GB1146989A (en) | 1966-11-07 | 1967-10-30 | Improvements in or relating to magnetic forming apparatus |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3427842A (en) |
| AT (1) | AT290955B (en) |
| BE (1) | BE705748A (en) |
| CH (1) | CH470920A (en) |
| DE (1) | DE1602457B1 (en) |
| FR (1) | FR1552016A (en) |
| GB (1) | GB1146989A (en) |
| NL (1) | NL6714701A (en) |
| SE (1) | SE343221B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588786A1 (en) * | 1985-10-18 | 1987-04-24 | Ecole Nale Superieure Mecaniqu | Installation for electromagnetically forming tubular parts by expansion |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3643480A (en) * | 1968-12-09 | 1972-02-22 | Gulf Oil Corp | Forming coil |
| US3921426A (en) * | 1974-11-15 | 1975-11-25 | Igor Vasilievich Bely | Inductor for magnetic-pulse stamping of flat banks |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2976907A (en) * | 1958-08-28 | 1961-03-28 | Gen Dynamics Corp | Metal forming device and method |
| US3258573A (en) * | 1963-06-13 | 1966-06-28 | Theodore J Morin | Welding and forming method and apparatus |
| US3321946A (en) * | 1964-12-16 | 1967-05-30 | Gen Motors Corp | Electromagnetic forming apparatus having improved backing member of high strength and electrical resistance |
-
1966
- 1966-11-07 US US592378A patent/US3427842A/en not_active Expired - Lifetime
-
1967
- 1967-10-25 SE SE14599/67A patent/SE343221B/xx unknown
- 1967-10-27 FR FR1552016D patent/FR1552016A/fr not_active Expired
- 1967-10-27 BE BE705748D patent/BE705748A/xx unknown
- 1967-10-30 NL NL6714701A patent/NL6714701A/xx unknown
- 1967-10-30 CH CH1522067A patent/CH470920A/en not_active IP Right Cessation
- 1967-10-30 GB GB49169/67A patent/GB1146989A/en not_active Expired
- 1967-10-30 AT AT978467A patent/AT290955B/en not_active Expired
- 1967-11-03 DE DE19671602457 patent/DE1602457B1/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588786A1 (en) * | 1985-10-18 | 1987-04-24 | Ecole Nale Superieure Mecaniqu | Installation for electromagnetically forming tubular parts by expansion |
Also Published As
| Publication number | Publication date |
|---|---|
| SE343221B (en) | 1972-03-06 |
| NL6714701A (en) | 1968-05-08 |
| AT290955B (en) | 1971-06-25 |
| BE705748A (en) | 1968-03-01 |
| CH470920A (en) | 1969-04-15 |
| FR1552016A (en) | 1969-01-03 |
| DE1602457B1 (en) | 1972-02-03 |
| US3427842A (en) | 1969-02-18 |
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