GB1347703A - Method and apparatus for forming tubular metal articles - Google Patents
Method and apparatus for forming tubular metal articlesInfo
- Publication number
- GB1347703A GB1347703A GB1347703DA GB1347703A GB 1347703 A GB1347703 A GB 1347703A GB 1347703D A GB1347703D A GB 1347703DA GB 1347703 A GB1347703 A GB 1347703A
- Authority
- GB
- United Kingdom
- Prior art keywords
- slug
- punch
- die
- bore
- piercing
- 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
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/10—Piercing billets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/04—Piercing presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
1347703 Piercing billets; extruding W J SHARON 23 Feb 1971 5191/71 Headings B3H and B3P In a method of making a tubular metal article 12 providing a die having an open ended bore 16 for circumferentially confining a slug 10, positioning a piercing punch 24 within one end of a die bore 16 and placing a first slug 10 in the other end of the bore, whereupon the slug is forced over the punch to form the tubular article 12. As a punch 26 is advanced, it pushes the lowermost slug 10 out of a shoot 47 into the die bore. This slug abuts a second slug, which forces a third slug over the piercing punch. A circumferential shoulder 85 prevents the second slug being withdrawn with the formed part 12 when the punch 24 is withdrawn from the die. The part 12 abuts a guide 60 for the punch 24 and is stripped therefrom into a shoot 66, Fig. 4 (not shown). The punch 26 has a point 87 which forms an indentation 88 in the ends of the slugs, so that the punch 24 does not carry a thin metal skin into the second slug as it pierces the slug being formed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB519171 | 1971-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1347703A true GB1347703A (en) | 1974-02-27 |
Family
ID=9791426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1347703D Expired GB1347703A (en) | 1971-02-23 | 1971-02-23 | Method and apparatus for forming tubular metal articles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1347703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4169365A (en) * | 1977-01-04 | 1979-10-02 | Berdjugina Antonina I | Needle for pressing internally-finned pipes |
| RU2549787C1 (en) * | 2014-03-11 | 2015-04-27 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | Punch for broaching at press |
-
1971
- 1971-02-23 GB GB1347703D patent/GB1347703A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4169365A (en) * | 1977-01-04 | 1979-10-02 | Berdjugina Antonina I | Needle for pressing internally-finned pipes |
| RU2549787C1 (en) * | 2014-03-11 | 2015-04-27 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | Punch for broaching at press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |