AU2001237229A1 - Method and forming tool for the production of cylindrical tubes by extrusion - Google Patents
Method and forming tool for the production of cylindrical tubes by extrusionInfo
- Publication number
- AU2001237229A1 AU2001237229A1 AU2001237229A AU3722901A AU2001237229A1 AU 2001237229 A1 AU2001237229 A1 AU 2001237229A1 AU 2001237229 A AU2001237229 A AU 2001237229A AU 3722901 A AU3722901 A AU 3722901A AU 2001237229 A1 AU2001237229 A1 AU 2001237229A1
- Authority
- AU
- Australia
- Prior art keywords
- slug
- drawing die
- extrusion
- die
- cylindrical
- 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.)
- Abandoned
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
- 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
- B21C37/30—Finishing tubes, e.g. sizing, burnishing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Extrusion Of Metal (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
The invention relates to a method for producing cylindrical tubes by plastically deforming a hollow-cylindrical slug (3) by extrusion to a cylindrical tube. According to the inventive method, the slug is introduced into a substantially cylindrical drawing die (2) up to a stop (4). A drawing mandrel (6) that has an outer diameter that is larger than the inner diameter of the slug is moved in the drawing die through the hollow space of the slug. Due to the flowing of the slug material pressed by the drawing mandrel, the length of the slug increases while the cross-section of the wall of the slug is reduced. The inner diameter of the drawing die and the outer diameter of the slug are chosen such that there is a radial play between the drawing die and the slug. When the drawing mandrel is drawn through the drawing die, the wall of the slug is radially pressed against the die, thereby expanding the outer diameter of the slug.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10004732 | 2000-01-28 | ||
DE10004732 | 2000-01-28 | ||
PCT/DE2001/000227 WO2001054839A1 (en) | 2000-01-28 | 2001-01-19 | Method and forming tool for the production of cylindrical tubes by extrusion |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001237229A1 true AU2001237229A1 (en) | 2001-08-07 |
Family
ID=7629699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001237229A Abandoned AU2001237229A1 (en) | 2000-01-28 | 2001-01-19 | Method and forming tool for the production of cylindrical tubes by extrusion |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1250199B1 (en) |
AT (1) | ATE245499T1 (en) |
AU (1) | AU2001237229A1 (en) |
DE (2) | DE50100414D1 (en) |
WO (1) | WO2001054839A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019103926A1 (en) * | 2019-02-15 | 2020-08-20 | Walter Henrich GmbH | Method and device for the axial forming of a pipe |
CN111069445B (en) * | 2019-11-27 | 2021-03-02 | 江阴和宏精工科技有限公司 | Wall thickness control method for expanding and drawing copper pipe |
CN117732900B (en) * | 2024-01-02 | 2024-07-02 | 浙江三基钢管有限公司 | Cold drawing equipment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE466434C (en) * | 1928-10-16 | Siegener Eisenbahnbedarf Akt G | Process for the precise internal drawing of hollow bodies | |
GB922266A (en) * | 1962-01-08 | 1963-03-27 | Joseph Wilson Yowell | Improvements in or relating to the production of tubes |
FR1528079A (en) * | 1967-04-28 | 1968-06-07 | Nippon Denso Co | Process for finishing the casings of electric motors |
DE2401345A1 (en) * | 1974-01-09 | 1975-07-10 | Mannesmann Roehren Werke Ag | DRAWING-STRETCHING PROCESS FOR THE PRODUCTION OF LONG TUBES AND DEVICE FOR CARRYING OUT THE PROCESS |
-
2001
- 2001-01-19 AU AU2001237229A patent/AU2001237229A1/en not_active Abandoned
- 2001-01-19 AT AT01909499T patent/ATE245499T1/en not_active IP Right Cessation
- 2001-01-19 DE DE50100414T patent/DE50100414D1/en not_active Expired - Lifetime
- 2001-01-19 WO PCT/DE2001/000227 patent/WO2001054839A1/en active IP Right Grant
- 2001-01-19 DE DE10190194T patent/DE10190194D2/en not_active Expired - Fee Related
- 2001-01-19 EP EP01909499A patent/EP1250199B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1250199B1 (en) | 2003-07-23 |
ATE245499T1 (en) | 2003-08-15 |
DE50100414D1 (en) | 2003-08-28 |
WO2001054839A1 (en) | 2001-08-02 |
EP1250199A1 (en) | 2002-10-23 |
DE10190194D2 (en) | 2003-02-20 |
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