GB862817A - Method of pressing a hollow cylindrical metal article - Google Patents
Method of pressing a hollow cylindrical metal articleInfo
- Publication number
- GB862817A GB862817A GB21460/59A GB2146059A GB862817A GB 862817 A GB862817 A GB 862817A GB 21460/59 A GB21460/59 A GB 21460/59A GB 2146059 A GB2146059 A GB 2146059A GB 862817 A GB862817 A GB 862817A
- Authority
- GB
- United Kingdom
- Prior art keywords
- punch
- workpiece
- station
- blank
- ejector
- 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
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
-
- 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
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/03—Making uncoated products by both direct and backward extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
862,817. Making gudgeon pins; extruding; forging. TEXTRON Inc. June 23, 1959 [June 30, 1958], No. 21460/59. Classes 83 (2) and 83 (4). A hollow cylindrical metal article, particularly a gudgeon pin, Fig. 11, having deep openings 50, 64 extending from both end faces, is made from a solid cylindrical blank by forcing a punch into one end face, turning the blank end for end and then forcing a second punch into the opposite end face, both' punching operations producing backward extrusion of the blank. The blank 23, Fig. 1, is cut from rod stock 14 by a knife 15 and transferred thereby to die station 1. Here it is indented at both ends by an ejector punch 19 and a punch 21 carried by a reciprocating gate 11 and simultaneously an external chamfer 18 is formed by the die 16. The workpiece is turned end-for-end during its transfer to station 2 where it is indented further on its outer end by a punch 32 whilst supported against an ejector punch 29. At station 3 the workpiece is backwardly-extruded over the nose 48 of a punch 46 and simultaneously an external chamfer 51a is produced on the inner end whilst the latter is further indented by ejector punch 43. During transfer to station 4 the workpiece is turned end-for-end, the previously extruded bore being supported over a punch 58 whilst the workpiece is backed by an ejector sleeve 55. A punch 60 with a nose 62 effects backward extrusion of the outer end of the workpiece and simultaneously the punch nose 59 forms an extension of the inner end bore. At the final station 5 the central web is punched out at 76, Fig. 11, to form the final gudgeon pin, the web being ejected through holes 75.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US862817XA | 1958-06-30 | 1958-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB862817A true GB862817A (en) | 1961-03-15 |
Family
ID=22197511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21460/59A Expired GB862817A (en) | 1958-06-30 | 1959-06-23 | Method of pressing a hollow cylindrical metal article |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB862817A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108568471A (en) * | 2017-03-07 | 2018-09-25 | 国民机械有限责任公司 | The set group of method and punch and mould for manufacturing and being formed cartridge clip housing blank |
-
1959
- 1959-06-23 GB GB21460/59A patent/GB862817A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108568471A (en) * | 2017-03-07 | 2018-09-25 | 国民机械有限责任公司 | The set group of method and punch and mould for manufacturing and being formed cartridge clip housing blank |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3101534A (en) | Method of producing wrist pins or similar articles | |
US4352283A (en) | Method of forming spark plug bodies | |
US4918969A (en) | Forging method for a hollow article | |
GB1061193A (en) | Improvements in or relating to methods and apparatus for forming ball studs | |
US3054177A (en) | Method of making valve lifter bodies or the like | |
US2062640A (en) | Process for forming nuts and the like | |
GB862817A (en) | Method of pressing a hollow cylindrical metal article | |
US3564894A (en) | Apparatus and method of forming tubular articles | |
GB1426274A (en) | Method of and apparatus for making ball studs | |
US2331608A (en) | Screw and method of making same | |
US2432844A (en) | Method of and means for making nut blanks | |
GB892749A (en) | Method and apparatus for cold-forming a blank for a sleeve-like metal article | |
GB782944A (en) | A method of press-forming hollow members | |
GB747572A (en) | A method of press-forming hollow members | |
GB894359A (en) | Method and machine for making a sleeve-like metal article | |
GB874167A (en) | Method and machine for making cup-shaped metal articles | |
GB824054A (en) | A method of making nut blanks | |
GB837333A (en) | Improvements in or relating to the production of tubular parts by extrusion | |
JPS57175045A (en) | Heading method for obtaining 2 ring bodies | |
EP0036050A1 (en) | Method of forming spark plug bodies | |
GB897015A (en) | Improvements in methods of cold extrusion of metals | |
GB1030793A (en) | Improvements in or relating to the manufacture of lock nuts | |
GB899513A (en) | Method of forming a cupped metal article | |
GB921431A (en) | Improvements in or relating to the manufacture of ball studs | |
GB1377046A (en) | Process for forming a flared end tubular metal part |