GB1116901A - Methods and apparatus for manufacturing tubular products from tubular blooms - Google Patents
Methods and apparatus for manufacturing tubular products from tubular bloomsInfo
- Publication number
- GB1116901A GB1116901A GB2666365A GB2666365A GB1116901A GB 1116901 A GB1116901 A GB 1116901A GB 2666365 A GB2666365 A GB 2666365A GB 2666365 A GB2666365 A GB 2666365A GB 1116901 A GB1116901 A GB 1116901A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bloom
- die
- end portion
- carriage
- plug
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/27—Carriages; Drives
- B21C1/30—Drives, e.g. carriage-traversing mechanisms; Driving elements, e.g. drawing chains; Controlling the drive
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
-
- 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
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes
- B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles
- B21C1/24—Metal drawing by machines or apparatus in which the drawing action is effected by other means than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, bars, or tubes specially adapted for making tubular articles by means of mandrels
- B21C1/26—Push-bench drawing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
1,116,901. Making seamless tubes; drawing tubes; expanding tubes. G. A. MITCHELL. 23 June, 1965, No. 26663/65. Headings B3A, B3J and B3P. A method of making a drawn tubular product from a tubular bloom includes the steps of expanding the bloom 14 around and along its axis of generation, excluding one axial end portion thereof, inserting said excluded end portion through a die aperture 12 sized intermediate said excluded and expanded bloom portions, and then drawing the remainder of the bloom through the die aperture. The bloom 14 is initially supported by clamps 16 and is expanded by a tapered plug 20 which is forced into bore of the bloom 14 by a push rod 22, axial movement of the bloom being prevented by a stop plate 18 positioned between the die 12 and the bloom. When the plug 20 has expanded the majority of the length of the bloom the stop plate is removed and further movement of the push rod 22 causes the unexpanded end portion of the bloom to pass through the die 12. This end portion is then gripped by the draw carriage 28 and the bloom is drawn through the die 12, the plug 20 remaining in the bore in the bloom and acting as a floating mandrel. This work cycle may be repeated using a larger plug 20 until the desired wall thickness is reached. The push rod 22, which is mounted on a push carriage 24, and the draw carriage 28 are both operated by a hydraulic piston and cylinder 32 acting through cables 48 and 66. The draw carriage 28 and push carriage 24 move in unison towards and away from the die 12 by means of a cable connection 58.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2666365A GB1116901A (en) | 1965-06-23 | 1965-06-23 | Methods and apparatus for manufacturing tubular products from tubular blooms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2666365A GB1116901A (en) | 1965-06-23 | 1965-06-23 | Methods and apparatus for manufacturing tubular products from tubular blooms |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1116901A true GB1116901A (en) | 1968-06-12 |
Family
ID=10247212
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2666365A Expired GB1116901A (en) | 1965-06-23 | 1965-06-23 | Methods and apparatus for manufacturing tubular products from tubular blooms |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1116901A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5083254A (en) * | 1973-11-28 | 1975-07-05 | ||
GB2171350A (en) * | 1985-02-22 | 1986-08-28 | Laeis Gmbh | Production of tubes by cold working |
WO1997005972A1 (en) * | 1995-08-04 | 1997-02-20 | Felice Ballin | Drawing process and machine |
-
1965
- 1965-06-23 GB GB2666365A patent/GB1116901A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5083254A (en) * | 1973-11-28 | 1975-07-05 | ||
GB2171350A (en) * | 1985-02-22 | 1986-08-28 | Laeis Gmbh | Production of tubes by cold working |
WO1997005972A1 (en) * | 1995-08-04 | 1997-02-20 | Felice Ballin | Drawing process and machine |
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