JPS55122645A - Internal thread forming method by press swaging - Google Patents
Internal thread forming method by press swagingInfo
- Publication number
- JPS55122645A JPS55122645A JP3020079A JP3020079A JPS55122645A JP S55122645 A JPS55122645 A JP S55122645A JP 3020079 A JP3020079 A JP 3020079A JP 3020079 A JP3020079 A JP 3020079A JP S55122645 A JPS55122645 A JP S55122645A
- Authority
- JP
- Japan
- Prior art keywords
- blank pipe
- core metal
- press
- swaging
- lower 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
- Forging (AREA)
Abstract
PURPOSE: To form the accurate internal threads on the inside surface of blank pipe through simple work by pressing the blank pipe with press swaging dies and pressure-contacting the same to a core metal.
CONSTITUTION: A core metal 2 provided with external threads 3 corresponding to the internal threads to be formed on the inside of a blank pipe 1 is inserted into the blank pipe. The blank pipe 1 having been inserted with the core metal 2 is placed on a lower die 6 and the end face of the core metal 2 is contacted to a position- defining plate 8, whereby the positioning is accomplished. Pressing force F is acted to the ram 7 of a press machine to press the blank pipe 1 by the upper die 5 and lower die 6 of the press swaging dies. The blank pipe 1 is pressed in the central axis direction by the swaging forming parts 5a, 6a of the upper die 5 and lower die 6, then its inside surface makes pressure contact with the external threads 3 of the core metal 2 and deforms plastically, whereby the internal threads 9 corresponding to the external threads 3 are formed. Upon completion of the molding, the pressing force F is lowered, the positioning plate 8 is removed and the core metal 2 is rotated to be unscrewed off.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3020079A JPS55122645A (en) | 1979-03-14 | 1979-03-14 | Internal thread forming method by press swaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3020079A JPS55122645A (en) | 1979-03-14 | 1979-03-14 | Internal thread forming method by press swaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55122645A true JPS55122645A (en) | 1980-09-20 |
Family
ID=12297096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3020079A Pending JPS55122645A (en) | 1979-03-14 | 1979-03-14 | Internal thread forming method by press swaging |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55122645A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253140A (en) * | 1985-05-02 | 1986-11-11 | Matsushita Electric Ind Co Ltd | Manufacture of welding nozzle |
| JP2008290146A (en) * | 2007-05-24 | 2008-12-04 | Toshiji Ito | Female screw forming method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS473136U (en) * | 1971-01-27 | 1972-09-02 | ||
| JPS50152970A (en) * | 1974-05-30 | 1975-12-09 |
-
1979
- 1979-03-14 JP JP3020079A patent/JPS55122645A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS473136U (en) * | 1971-01-27 | 1972-09-02 | ||
| JPS50152970A (en) * | 1974-05-30 | 1975-12-09 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253140A (en) * | 1985-05-02 | 1986-11-11 | Matsushita Electric Ind Co Ltd | Manufacture of welding nozzle |
| JP2008290146A (en) * | 2007-05-24 | 2008-12-04 | Toshiji Ito | Female screw forming method |
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