GB1249810A - Bulging apparatus - Google Patents
Bulging apparatusInfo
- Publication number
- GB1249810A GB1249810A GB6237569A GB6237569A GB1249810A GB 1249810 A GB1249810 A GB 1249810A GB 6237569 A GB6237569 A GB 6237569A GB 6237569 A GB6237569 A GB 6237569A GB 1249810 A GB1249810 A GB 1249810A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- piston
- fluid
- tube
- die
- 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
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
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/039—Means for controlling the clamping or opening of the moulds
-
- 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
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/045—Closing or sealing means
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
1,249,810. Stamping. M. NAKAMURA. 22 Dec., 1969, No. 62375/69. Heading B3Q. Apparatus for bulging a pipe 5 in a die-cavity 4 by fluid-pressure comprises a connection 8 to a hydraulic generator 6, 9, a hollow piston 13 for pressing against one end of the pipe and an airvent pipe 10 passing through the piston. The upper, pivoted die-section 2 is clamped to the lower section 3 by a sleeve 19 with a frustoconical bore. One end of the pipe is closed by an adjustable plug 22. Valves 12, 29 in the pipe 10 and in a supply pipe 28 are opened during filling of the pipe 5 with hydraulic fluid through the chamber 6. In another construction, Fig. 2 (not shown), pistons are used at each end of the diechamber to apply pressure to the tube, and the top die-section is turned about its pivot (61) hydraulically. A composite piston (50, 55), providing a tapering annular recess for gripping the right-hand end of the tube, has a central passage (53) through which fluid from the tube passes behind the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6237569A GB1249810A (en) | 1969-12-22 | 1969-12-22 | Bulging apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB6237569A GB1249810A (en) | 1969-12-22 | 1969-12-22 | Bulging apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1249810A true GB1249810A (en) | 1971-10-13 |
Family
ID=10488084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6237569A Expired GB1249810A (en) | 1969-12-22 | 1969-12-22 | Bulging apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1249810A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2244228A (en) * | 1990-05-26 | 1991-11-27 | Benteler Werke Ag | Hydraulically shaping a tubular hollow body |
| US11040512B2 (en) | 2017-11-08 | 2021-06-22 | Northrop Grumman Systems Corporation | Composite structures, forming apparatuses and related systems and methods |
| CN114101488A (en) * | 2021-11-10 | 2022-03-01 | 中国航发南方工业有限公司 | Down-pressing convex rib liquid-filling bulging device |
-
1969
- 1969-12-22 GB GB6237569A patent/GB1249810A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2244228A (en) * | 1990-05-26 | 1991-11-27 | Benteler Werke Ag | Hydraulically shaping a tubular hollow body |
| GB2244228B (en) * | 1990-05-26 | 1993-03-24 | Benteler Werke Ag | Method for the hydraulic shaping of a tubular hollow body and apparatus for performing the method |
| US11040512B2 (en) | 2017-11-08 | 2021-06-22 | Northrop Grumman Systems Corporation | Composite structures, forming apparatuses and related systems and methods |
| US12083766B2 (en) | 2017-11-08 | 2024-09-10 | Northrop Grumman Systems Corporation | Composite structures, forming apparatuses and related systems and methods |
| US12539685B2 (en) | 2017-11-08 | 2026-02-03 | Northrop Grumman Systems Corporation | Composite structures, forming apparatuses and related systems and methods |
| CN114101488A (en) * | 2021-11-10 | 2022-03-01 | 中国航发南方工业有限公司 | Down-pressing convex rib liquid-filling bulging device |
| CN114101488B (en) * | 2021-11-10 | 2023-04-11 | 中国航发南方工业有限公司 | Down-pressing convex rib liquid-filling bulging device |
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