JPS55153628A - Forming work method of conical barrel or the like - Google Patents
Forming work method of conical barrel or the likeInfo
- Publication number
- JPS55153628A JPS55153628A JP6201979A JP6201979A JPS55153628A JP S55153628 A JPS55153628 A JP S55153628A JP 6201979 A JP6201979 A JP 6201979A JP 6201979 A JP6201979 A JP 6201979A JP S55153628 A JPS55153628 A JP S55153628A
- Authority
- JP
- Japan
- Prior art keywords
- conical
- concave
- projection
- female die
- male die
- 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
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To increase the accuracy of a truncated-conical barrel and to reduce the term of works, by pressing a material having a projection at its center with a concave-conical female die and with a convex-conical male die having concave part at its top end.
CONSTITUTION: Material 16 is placed on an upper female die 15 so that the projection 17 of the material 16 is positioned under the concave top 22 of a convex conical male die 19. Then the material 16 is held between a supporting surface 13 and a tension machine 18 by the tension machine 18 and the male die 19 is lowered, hence the concave 22 is fitted to the projection 17, and the part 21 with a radius comes into contact with the material 16 to form the material 16 gradually into a nearly conical body 23 by pressing the material 16 to the concave cone-forming surface 11 of the female die 10 by the surface 20 for forming a convex cone. At that time, the shoulder knuckle 24 with a radius is formed between the male die 19 and the vertical forming surface 14 of the upper female die 15. After drawn off, the nearly conical body 23 is cut off at its top end to form a truncated-conical barrel.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6201979A JPS55153628A (en) | 1979-05-18 | 1979-05-18 | Forming work method of conical barrel or the like |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6201979A JPS55153628A (en) | 1979-05-18 | 1979-05-18 | Forming work method of conical barrel or the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55153628A true JPS55153628A (en) | 1980-11-29 |
Family
ID=13188030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6201979A Pending JPS55153628A (en) | 1979-05-18 | 1979-05-18 | Forming work method of conical barrel or the like |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55153628A (en) |
-
1979
- 1979-05-18 JP JP6201979A patent/JPS55153628A/en active Pending
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