JPS56134037A - Closed forging method, forming die device, and closed forging press for annular body - Google Patents
Closed forging method, forming die device, and closed forging press for annular bodyInfo
- Publication number
- JPS56134037A JPS56134037A JP3517580A JP3517580A JPS56134037A JP S56134037 A JPS56134037 A JP S56134037A JP 3517580 A JP3517580 A JP 3517580A JP 3517580 A JP3517580 A JP 3517580A JP S56134037 A JPS56134037 A JP S56134037A
- Authority
- JP
- Japan
- Prior art keywords
- punch
- die
- cylindrical
- forging
- closed forging
- 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.)
- Pending
Links
Landscapes
- Forging (AREA)
Abstract
PURPOSE: To integrally form an annular body under considerably reduced load without making the device intricate by forging the cylindrical end face of a forging blank material by means of a cylindrical punch and filling the same into a closed cavity.
CONSTITUTION: When a predetermined cylindrical forging blank material 21 is fed so as to fit to a mandrel part 11 and a driving device is operated, a pressing ram 25 is pushed down and both a male die 7 and a ram 18 for punch descend, thereby forming a closed cavity 19. The arm 18 is pushed down, and the top circumferetial surface of the material 21 is forged by the entire circumferential surface of the bottom end of a cylindrical punch 9 so that the material 21 causes plastic deformation and is gradually filled in the respective closed cavities 19 of the recess 12 of the lower die and the recessed circumferential part 14 of the die 7. Since this is so arranged as to forge the thick-walled part thicker than the web, forging load is less and the formation of the web is made easy. The arm 18 is moved upward, the punch 9 is retraeted, the pressing ram 25 ascends, the male die 7 separates from the female die 8 to complete one cycle.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3517580A JPS56134037A (en) | 1980-03-20 | 1980-03-20 | Closed forging method, forming die device, and closed forging press for annular body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3517580A JPS56134037A (en) | 1980-03-20 | 1980-03-20 | Closed forging method, forming die device, and closed forging press for annular body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56134037A true JPS56134037A (en) | 1981-10-20 |
Family
ID=12434507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3517580A Pending JPS56134037A (en) | 1980-03-20 | 1980-03-20 | Closed forging method, forming die device, and closed forging press for annular body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56134037A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5446962A (en) * | 1992-11-04 | 1995-09-05 | Norris Industries, Inc. | Process of manufacturing one-piece forged wheels |
| CN102974734A (en) * | 2012-11-30 | 2013-03-20 | 无锡透平叶片有限公司 | Blank positioning structure for plate forged piece |
| CN103736894A (en) * | 2014-01-02 | 2014-04-23 | 中南大学 | Isothermal forging die and forging technology thereof of magnesium alloy die forge piece of step type structure |
| CN103752751A (en) * | 2014-01-23 | 2014-04-30 | 连云港宝石精密重工科技有限公司 | Pre-forging die for forging aluminum alloy wheel |
| CN106238647A (en) * | 2016-08-06 | 2016-12-21 | 宁波路威汽车轮业有限公司 | A kind of wheel hub forging mold |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4330038Y1 (en) * | 1966-03-24 | 1968-12-09 |
-
1980
- 1980-03-20 JP JP3517580A patent/JPS56134037A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4330038Y1 (en) * | 1966-03-24 | 1968-12-09 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5446962A (en) * | 1992-11-04 | 1995-09-05 | Norris Industries, Inc. | Process of manufacturing one-piece forged wheels |
| CN102974734A (en) * | 2012-11-30 | 2013-03-20 | 无锡透平叶片有限公司 | Blank positioning structure for plate forged piece |
| CN103736894A (en) * | 2014-01-02 | 2014-04-23 | 中南大学 | Isothermal forging die and forging technology thereof of magnesium alloy die forge piece of step type structure |
| CN103752751A (en) * | 2014-01-23 | 2014-04-30 | 连云港宝石精密重工科技有限公司 | Pre-forging die for forging aluminum alloy wheel |
| CN106238647A (en) * | 2016-08-06 | 2016-12-21 | 宁波路威汽车轮业有限公司 | A kind of wheel hub forging mold |
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