GB1006973A - Cold drawing equipment for metal pipes - Google Patents
Cold drawing equipment for metal pipesInfo
- Publication number
- GB1006973A GB1006973A GB23202/62A GB2320262A GB1006973A GB 1006973 A GB1006973 A GB 1006973A GB 23202/62 A GB23202/62 A GB 23202/62A GB 2320262 A GB2320262 A GB 2320262A GB 1006973 A GB1006973 A GB 1006973A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mandrel
- tube
- ball
- nut
- june
- 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
- B21C1/22—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
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/12—Die holders; Rotating dies
- B21C3/14—Die holders combined with devices for guiding the drawing material or combined with devices for cooling heating, or lubricating
-
- 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
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/16—Mandrels; Mounting or adjusting same
-
- 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
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
- B21C37/0811—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off removing or treating the weld bead
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
1,006,973. Drawing mandrels. AVESTA JERNVERKS A.B. June 15, 1962 [June 30, 1961], No. 23202/62. Heading B3P. A drawing mandrel of hard metal is provided with a steel extension which remains in the tube when the mandrel is pulled out at the end of the drawing operation, and prevents rapid lateral movements of the mandrel. The mandrel 10 is fitted on to the pull rod 12 and is retained by a hardened steel nut 15. The free end of the nut is formed to a ball 15 of slightly smaller diameter than the mandrel. The tube 16 is drawn over the mandrel and through a die 17. A tube guide 18 is positioned opposite the ball 15, and has a diameter equal to or slightly larger than the outside diameter of the tube. The mandrel 10 may be a push fit or a force fit on the pull rod 12 and there is a soldered joint 14 between the nut 13 and the mandrel. At the end of the drawing operation, when due to the elastic contraction of the tube and pull-rod the mandrel suddenly leaves the end of the tube, the ball 15 remains within the tube. In a modification the ball 15 is slightly larger than the bore of the tube and is slit to form a plurality of resilient segments. In a second modification the guide 18 is used as a second drawing die, and the end of the nut is made parallel and acts as a second drawing mandrel. The strength of the soldered joint 14 may be increased by making the mating faces conical in form. The mandrel 10 may be formed with a sharp leading edge to remove weld or burrs from the inside of the tube.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE683861 | 1961-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1006973A true GB1006973A (en) | 1965-10-06 |
Family
ID=20269723
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23202/62A Expired GB1006973A (en) | 1961-06-30 | 1962-06-15 | Cold drawing equipment for metal pipes |
Country Status (4)
Country | Link |
---|---|
US (1) | US3155229A (en) |
AT (1) | AT241398B (en) |
CH (1) | CH394997A (en) |
GB (1) | GB1006973A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111922105A (en) * | 2020-06-01 | 2020-11-13 | 广东和胜工业铝材股份有限公司 | Pipe drawing die and drawing process |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3292407A (en) * | 1964-06-18 | 1966-12-20 | Bruce B Krost | Tube drawing apparatus |
US3487673A (en) * | 1967-03-06 | 1970-01-06 | Calumet & Hecla Corp | Form drawing of fluted tubing |
EP2241386A1 (en) * | 2009-04-16 | 2010-10-20 | Felss GmbH | Reforming tool for creating an internal profile, in particular an internal gear of a workpiece |
WO2013027616A1 (en) * | 2011-08-19 | 2013-02-28 | 昭和電工株式会社 | Substrate for photosensitive drum |
DE102019112547A1 (en) * | 2019-05-14 | 2020-11-19 | Felss Systems Gmbh | Processing unit and processing machine for processing a workpiece on a workpiece wall and a method for producing a processing unit of the type mentioned |
CN111215462B (en) * | 2020-03-02 | 2024-07-26 | 张家港保税区恒隆钢管有限公司 | Rotary cold-drawing core rod seat |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1166040A (en) * | 1915-03-28 | 1915-12-28 | William Burlingham | Apparatus for lining tubes. |
DE522161C (en) * | 1928-06-13 | 1931-04-01 | Max Bittersmann | Device for cold drawing of metal pipes |
US1928227A (en) * | 1931-08-06 | 1933-09-26 | Allegheny Steel Co | Double reduction one-pass |
DE936084C (en) * | 1953-04-16 | 1955-12-07 | Kronprinz Ag | Device for the production of pipes from longitudinally welded output pipes to be subjected to a drawing process with a device for removing the weld burr |
-
1962
- 1962-06-04 US US199714A patent/US3155229A/en not_active Expired - Lifetime
- 1962-06-14 CH CH716562A patent/CH394997A/en unknown
- 1962-06-15 GB GB23202/62A patent/GB1006973A/en not_active Expired
- 1962-06-28 AT AT517862A patent/AT241398B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111922105A (en) * | 2020-06-01 | 2020-11-13 | 广东和胜工业铝材股份有限公司 | Pipe drawing die and drawing process |
Also Published As
Publication number | Publication date |
---|---|
US3155229A (en) | 1964-11-03 |
AT241398B (en) | 1965-07-26 |
CH394997A (en) | 1965-07-15 |
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