GB1225995A - - Google Patents
Info
- Publication number
- GB1225995A GB1225995A GB1225995DA GB1225995A GB 1225995 A GB1225995 A GB 1225995A GB 1225995D A GB1225995D A GB 1225995DA GB 1225995 A GB1225995 A GB 1225995A
- Authority
- GB
- United Kingdom
- Prior art keywords
- workpiece
- dies
- die
- disc
- 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
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
- B21C3/06—Dies; Selection of material therefor; Cleaning thereof with adjustable section
-
- 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
- B21C3/08—Dies; Selection of material therefor; Cleaning thereof with section defined by rollers, balls, or the like
-
- 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
- B21C37/16—Making tubes with varying diameter in longitudinal direction
- B21C37/18—Making tubes with varying diameter in longitudinal direction conical tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B21/00—Pilgrim-step tube-rolling, i.e. pilger mills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
1,225,995. Drawing; rolling. NORTH AMERICAN ROCKWELL CORP. 10 June, 1968 [29 June, 1967], No. 27545/68. Headings B3M and B3P. A tapering die apparatus comprises at least three rotatable disc dies, means for causing relative movement between a workpiece and the dies such that the workpiece is drawn through the die orifice with a speed equal to the peripheral speed of the dies and means for maintaining the workpiece under tension. In one embodiment, Fig. 1, the workpiece is mtaintained under tension and a die carriage containing the disc dies 40 is moved over the workpiece. The disc dies 40 are connected to spur gears 25 and are rotated by the simultaneous movement of racks 20, or alternatively by the movement of the die carriage over stationary racks. The die peripheries may be shaped so as to form a workpiece having a maximum diameter at its ends and a minimum diameter intermediate thereof, or a workpiece having a non-constant taper. In another embodiment, Fig. 5, a disc die 63 is rotated by a drive shaft 73 to cause by bevel gearing 71 an adjacent pair of disc dies 61, 62 to synchronously rotate therewith. A tapered workpiece of triangular section is formed by the dies 61-63 or eight dies may be arranged to form a workpiece of octagonal section. The drive means of the two embodiments may be interchanged. A mandrel may be disposed within a tubular workpiece. In a further embodiment (Fig. 7, not shown), a tubular or solid workpiece (81) is pulled from a supply reel (83) through a pretensioning device (87), and through a die apparatus (91) by a drawing mechanism (85). The workpiece is finally cut into lengths by a saw (93).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64997567A | 1967-06-29 | 1967-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1225995A true GB1225995A (en) | 1971-03-24 |
Family
ID=24606991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1225995D Expired GB1225995A (en) | 1967-06-29 | 1968-06-10 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3572078A (en) |
| DE (1) | DE1752657A1 (en) |
| FR (1) | FR1571150A (en) |
| GB (1) | GB1225995A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3668916A (en) * | 1970-01-19 | 1972-06-13 | Wean Ind Inc | Drawing of metal tubing |
| RU2453387C1 (en) * | 2010-12-29 | 2012-06-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный университет имени первого Президента Б.Н. Ельцина" | Roller die for production of round pipes |
| US9481024B1 (en) * | 2013-03-21 | 2016-11-01 | Davor Petricio Yaksic | Pipe joining |
| DE102014115426B4 (en) | 2014-10-23 | 2018-07-26 | Thyssenkrupp Ag | Apparatus and method for continuously advancing metal bands to a profile of longitudinally variable cross-section |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US281978A (en) * | 1883-07-24 | Rolling-mill | ||
| US324867A (en) * | 1885-08-25 | Rolling-mill | ||
| US1891904A (en) * | 1927-09-12 | 1932-12-27 | George E Barnhart | Tube drawing machine |
| FR744557A (en) * | 1931-10-27 | 1933-04-21 | ||
| US2145125A (en) * | 1936-10-06 | 1939-01-24 | Mark E Moore | Can forming machine |
| US3044331A (en) * | 1959-01-05 | 1962-07-17 | Dalmine Spa | Device for drawing or rolling, especially for the production of frustoconically shaped bodies and the like |
| US3240045A (en) * | 1962-10-15 | 1966-03-15 | Prec Sheet Metal Inc | Arrangement for contouring tubes |
| US3360974A (en) * | 1965-04-07 | 1968-01-02 | United States Steel Corp | Apparatus for treating metal |
-
1967
- 1967-01-29 US US649975A patent/US3572078A/en not_active Expired - Lifetime
-
1968
- 1968-06-10 GB GB1225995D patent/GB1225995A/en not_active Expired
- 1968-06-27 FR FR1571150D patent/FR1571150A/fr not_active Expired
- 1968-06-28 DE DE19681752657 patent/DE1752657A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3572078A (en) | 1971-03-23 |
| FR1571150A (en) | 1969-06-13 |
| DE1752657A1 (en) | 1971-05-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |