GB837333A - Improvements in or relating to the production of tubular parts by extrusion - Google Patents
Improvements in or relating to the production of tubular parts by extrusionInfo
- Publication number
- GB837333A GB837333A GB30273/57A GB3027357A GB837333A GB 837333 A GB837333 A GB 837333A GB 30273/57 A GB30273/57 A GB 30273/57A GB 3027357 A GB3027357 A GB 3027357A GB 837333 A GB837333 A GB 837333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extrusion
- die
- head
- blank
- tubular
- 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
- 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)
- Punching Or Piercing (AREA)
- Press Drives And Press Lines (AREA)
Abstract
837,333. Making tubular pins; extruding. MAY, O. Sept. 26, 1957 [Oct. 3, 1956], No. 30273/57. Classes 83 (2) and 83 (4). Tubular metal parts 60, particularly for use as gudgeon or roller-chain pins, are produced by extruding a tubular blank 35 through a die 41 to form a blank 54, stopping the extrusion whilst an unextruded head 53 remains, inserting a second blank 35 on top of the head 53 and then continuing the extrusion whereby the head 53 is completely extruded through the die. Pressure is applied by a punch 46 surrounding a mandrel 47. A drawing die 43 is provided below the extrusion die. The blanks 35 are formed from cylindrical metal plugs 30, Fig. 5 (not shown), which are backwardlyextruded to cup-shape 31, Fig. 6 (not shown), and the closed ends are then punched out, Fig. 8 (not shown). All the operations may be performed independently or are preferably performed on a single multiple stage press wherein the workpieces are transferred between stages by a rotary carrier.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE837333X | 1956-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB837333A true GB837333A (en) | 1960-06-09 |
Family
ID=6761395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB30273/57A Expired GB837333A (en) | 1956-10-03 | 1957-09-26 | Improvements in or relating to the production of tubular parts by extrusion |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB837333A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2216833A (en) * | 1988-03-21 | 1989-10-18 | Arnold & Stolzenberg Gmbh | Method of manufacturing a roller chain |
CN111715764A (en) * | 2020-06-29 | 2020-09-29 | 中北大学 | Rotary deep-drawing forming method of thin-wall cup-shaped piece |
-
1957
- 1957-09-26 GB GB30273/57A patent/GB837333A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2216833A (en) * | 1988-03-21 | 1989-10-18 | Arnold & Stolzenberg Gmbh | Method of manufacturing a roller chain |
GB2216833B (en) * | 1988-03-21 | 1992-06-03 | Arnold & Stolzenberg Gmbh | Method of manufacturing a roller chain |
CN111715764A (en) * | 2020-06-29 | 2020-09-29 | 中北大学 | Rotary deep-drawing forming method of thin-wall cup-shaped piece |
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