GB142146A - Improvements in and relating to the manufacture of gun tubes, suitable for use in the construction of howitzer and like guns and for the linings of wire-wound and other guns - Google Patents
Improvements in and relating to the manufacture of gun tubes, suitable for use in the construction of howitzer and like guns and for the linings of wire-wound and other gunsInfo
- Publication number
- GB142146A GB142146A GB366218A GB366218A GB142146A GB 142146 A GB142146 A GB 142146A GB 366218 A GB366218 A GB 366218A GB 366218 A GB366218 A GB 366218A GB 142146 A GB142146 A GB 142146A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tube
- billet
- mandrel
- guns
- tubes
- 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
- B21C37/152—Making rifle and gunbarrels
-
- 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)
- Forging (AREA)
Abstract
142,146. Hadfield, Sir R. A., Jack, A. G. M., and Clerke, A. B. H. March 1, 1918. Ordnance; tubes.-Guns or gun tubes are made from cast billets by piercing, drawing, or turning and boring, and heat-treatment. A tapering grooved billet as described in Specification 4228/15, [Class 83 (i), Casting &c. metals], is cast, the head is cut off, and it is roughly turned to a uniform diameter without removing the grooves completely. After heating, it is inserted in a matrix h, Fig. 19, which it fits. The billet is then pierced and extruded by an hydraulic plunger n while supported by a plug k and ribbed abutment m. After the return of the plunger n and removal of the abutment m, the billet is ejected by an hydraulic pusher p. The heated billet is then reduced in diameter in a number of stages by pushing through single or multiple dies r by mandrels n<1>, Fig. 21, of smaller diameter than the hole in the billet or tube acted on. To ensure centring, each successive mandrel is blunter than the preceding one, and to avoid driving the mandrel through the end a<2>, this may be cooled before and during the draw. A stripper is slipped between the last die of a set and the tube end, and, when the mandrel retires, the tube falls into the cradle f. For facilitating the placing of the tube on the mandrel, this may be ball-jointed at t and raised, as shown in Fig. 24, by an hydraulic device u on a carriage w. The first die of a set may merely serve as a guide. After drawing, the tube is roughly turned and bored to the required finished dimensions, and, in the case of a gun lining, the closed end is cut off. The tube is finally hardened and tempered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB366218A GB142146A (en) | 1918-03-01 | 1918-03-01 | Improvements in and relating to the manufacture of gun tubes, suitable for use in the construction of howitzer and like guns and for the linings of wire-wound and other guns |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB366218A GB142146A (en) | 1918-03-01 | 1918-03-01 | Improvements in and relating to the manufacture of gun tubes, suitable for use in the construction of howitzer and like guns and for the linings of wire-wound and other guns |
Publications (1)
Publication Number | Publication Date |
---|---|
GB142146A true GB142146A (en) | 1920-05-06 |
Family
ID=9762549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB366218A Expired GB142146A (en) | 1918-03-01 | 1918-03-01 | Improvements in and relating to the manufacture of gun tubes, suitable for use in the construction of howitzer and like guns and for the linings of wire-wound and other guns |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB142146A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114393402A (en) * | 2021-12-28 | 2022-04-26 | 江苏启力锻压机床有限公司 | Carbon steel cylinder cold extrusion forming process |
-
1918
- 1918-03-01 GB GB366218A patent/GB142146A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114393402A (en) * | 2021-12-28 | 2022-04-26 | 江苏启力锻压机床有限公司 | Carbon steel cylinder cold extrusion forming process |
CN114393402B (en) * | 2021-12-28 | 2024-04-05 | 江苏启力锻压机床有限公司 | Cold extrusion forming process for carbon steel bullet barrel |
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