JPS6422441A - Method for forming cup-shaped product with inner teeth - Google Patents
Method for forming cup-shaped product with inner teethInfo
- Publication number
- JPS6422441A JPS6422441A JP18064187A JP18064187A JPS6422441A JP S6422441 A JPS6422441 A JP S6422441A JP 18064187 A JP18064187 A JP 18064187A JP 18064187 A JP18064187 A JP 18064187A JP S6422441 A JPS6422441 A JP S6422441A
- Authority
- JP
- Japan
- Prior art keywords
- stock
- punch
- die
- product
- pushed
- 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
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
Landscapes
- Forging (AREA)
Abstract
PURPOSE:To simplify the setting of a stock and to prevent the wall thickness of a product from being biased by arranging a die and an inner punch to the upper die and an outer punch to the lower die. CONSTITUTION:When a cup-shaped stock W is mounted with its opening end upward on the end surface of the outer punch 10 and the upper die 1 is lowered, the bottom wall of the stock W is put between the inner punch 6 and the outer punch 10. Under such a state the inner punch 6 is lifted against a spring 5a and the stock W is pushed from the opening end side into the orifice part 3a of the die 3. In this case, the material of the stock W is drawn inward by the orifice part 3a, pushed out by a compression from the bottom to the top to perform extrusion forming and to form the inner teeth after the forming tooth form 6a of the outer circumference of the inner punch 6 on the inner circumference of the stock W. Thereafter, with the elevation of the upper die 1 the die 3 and the inner punch 6 are elevated to the knockout pin 8 and the product is released from the die, while the bottom wall of the product is pushed by the knockout pin 8 to the end surface of the outer punch 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18064187A JPS6422441A (en) | 1987-07-20 | 1987-07-20 | Method for forming cup-shaped product with inner teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18064187A JPS6422441A (en) | 1987-07-20 | 1987-07-20 | Method for forming cup-shaped product with inner teeth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6422441A true JPS6422441A (en) | 1989-01-25 |
Family
ID=16086745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18064187A Pending JPS6422441A (en) | 1987-07-20 | 1987-07-20 | Method for forming cup-shaped product with inner teeth |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6422441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02144983U (en) * | 1989-05-11 | 1990-12-10 |
-
1987
- 1987-07-20 JP JP18064187A patent/JPS6422441A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02144983U (en) * | 1989-05-11 | 1990-12-10 |
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