JPS6462241A - Forging method - Google Patents
Forging methodInfo
- Publication number
- JPS6462241A JPS6462241A JP21637687A JP21637687A JPS6462241A JP S6462241 A JPS6462241 A JP S6462241A JP 21637687 A JP21637687 A JP 21637687A JP 21637687 A JP21637687 A JP 21637687A JP S6462241 A JPS6462241 A JP S6462241A
- Authority
- JP
- Japan
- Prior art keywords
- forged
- rolling reduction
- axial direction
- cogging
- anvils
- 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
- 238000005242 forging Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000005096 rolling process Methods 0.000 abstract 7
Landscapes
- Forging (AREA)
Abstract
PURPOSE:To execute cogging without generating flaw and crack even when a material to be forged being hard to work by reducing the feeding speed of the material to be forged in the axial direction at the initial swaging time in case of cogging the material to be forged with its rolling reduction simultaneous by an anvil from plural directions to the orthogonal direction for the axial direction. CONSTITUTION:Four anvils 2a-2d are arranged at 90 deg. intervals in the orthogonal direction with the axial direction B of the material 1 to be forged and after executing a rolling reduction by moving the anvils 2a-2d in the centripetal direction simultaneously, they are drawn in the centrifugal direction. Then the material 1 to be forged is rotated by the specified angle in an arrow mark A direction to execute the rolling reduction once again. At this time, the material 1 to be forged is fed in the axial direction B adequately on each rolling reduction, subjected to cogging by repeating the rolling reduction/rotation/feeding and its diameter is made smaller. In this cogging operation, the feeding speed in the axial direction of the material 1 to be forged is reduced and/or the rolling reduction amt. per one pass by the anvils 2a-2d is increased at the initial swaging time and the swaging is executed with the specified feeding speed and rolling reduction amt. thereafter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21637687A JPS6462241A (en) | 1987-09-01 | 1987-09-01 | Forging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21637687A JPS6462241A (en) | 1987-09-01 | 1987-09-01 | Forging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6462241A true JPS6462241A (en) | 1989-03-08 |
Family
ID=16687602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21637687A Pending JPS6462241A (en) | 1987-09-01 | 1987-09-01 | Forging method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6462241A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03189043A (en) * | 1989-12-18 | 1991-08-19 | T R W S I Kk | Manufacture of torsion bar for power steering device |
| CN105499460A (en) * | 2015-12-30 | 2016-04-20 | 天津重型装备工程研究有限公司 | Large forging asymmetric rolling reduction drawing-out process |
-
1987
- 1987-09-01 JP JP21637687A patent/JPS6462241A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03189043A (en) * | 1989-12-18 | 1991-08-19 | T R W S I Kk | Manufacture of torsion bar for power steering device |
| CN105499460A (en) * | 2015-12-30 | 2016-04-20 | 天津重型装备工程研究有限公司 | Large forging asymmetric rolling reduction drawing-out process |
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