GB801158A - Improvements in the manufacture of tubular metal elements - Google Patents
Improvements in the manufacture of tubular metal elementsInfo
- Publication number
- GB801158A GB801158A GB19248/56A GB1924856A GB801158A GB 801158 A GB801158 A GB 801158A GB 19248/56 A GB19248/56 A GB 19248/56A GB 1924856 A GB1924856 A GB 1924856A GB 801158 A GB801158 A GB 801158A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- bulge
- opening
- die
- enlargement
- 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
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
- B21C37/29—Making branched pieces, e.g. T-pieces
- B21C37/294—Forming collars by compressing a fluid or a yieldable or resilient mass in the tube
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Extrusion Of Metal (AREA)
Abstract
801,158. Making tubular elements; extruding; forging. HUET, A. June 21, 1956 [Aug. 2, 1955], No. 19248/56. Classes 83 (2) and 83 (4). Apparatus for forming a bulge g in one side of a metal tube a by axial compression of the tube, comprises a die b<SP>2</SP> having a main cavity for receiving the tube and a transverse opening c into which the wall of the tube is extruded to form the bulge, and wherein the main cavity is enlarged at d in the region where the bulge is to be formed, to a diameter slightly greater than the external diameter of the tube. The enlargement exists between the oblique lines f. After heating to extrusion temperature, the tube is inserted in the die, which is in two parts b<SP>1</SP>, b<SP>2</SP>, Fig. 2 (not shown), and is compressed therein, without the use of a mandrel, by axial forces F applied at the ends of the tube or by clamping jaws h<SP>1</SP>, h<SP>2</SP>. The enlargement d prevents loss of heat in the central portion of the tube and hence facilitates the extrusion of the tube wall into the opening c. During the compression, hot gases may be passed through the opening c to maintain the temperature or the interior of the tube a may be heated.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR801158X | 1955-08-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB801158A true GB801158A (en) | 1958-09-10 |
Family
ID=9242306
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19248/56A Expired GB801158A (en) | 1955-08-02 | 1956-06-21 | Improvements in the manufacture of tubular metal elements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB801158A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2212420A (en) * | 1987-11-18 | 1989-07-26 | Belleli Spa | Manufacturing a junction of a tubular reticular structure |
ES2559688A1 (en) * | 2014-08-14 | 2016-02-15 | Fernando GABINO CUTILLAS | Method of manufacturing a piece with a cane shape (Machine-translation by Google Translate, not legally binding) |
CN108723112A (en) * | 2018-05-25 | 2018-11-02 | 无锡市新峰管业有限公司 | The super wall thickness seam-less T-joint pipe fitting moulding process of high-pressure hydrogenation heavy caliber |
-
1956
- 1956-06-21 GB GB19248/56A patent/GB801158A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2212420A (en) * | 1987-11-18 | 1989-07-26 | Belleli Spa | Manufacturing a junction of a tubular reticular structure |
ES2559688A1 (en) * | 2014-08-14 | 2016-02-15 | Fernando GABINO CUTILLAS | Method of manufacturing a piece with a cane shape (Machine-translation by Google Translate, not legally binding) |
CN108723112A (en) * | 2018-05-25 | 2018-11-02 | 无锡市新峰管业有限公司 | The super wall thickness seam-less T-joint pipe fitting moulding process of high-pressure hydrogenation heavy caliber |
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