JPS55133842A - Production of pipe joint - Google Patents
Production of pipe jointInfo
- Publication number
- JPS55133842A JPS55133842A JP4129179A JP4129179A JPS55133842A JP S55133842 A JPS55133842 A JP S55133842A JP 4129179 A JP4129179 A JP 4129179A JP 4129179 A JP4129179 A JP 4129179A JP S55133842 A JPS55133842 A JP S55133842A
- Authority
- JP
- Japan
- Prior art keywords
- dies
- blank
- punch
- sectional
- core bar
- 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 obtain the pipe joint of even strength with less blank and man-hours by forming the blank with the dies having a mandrel which makes reciprocating movements within the through-hole having an angle to the reciprocating movement line of the pressing punch and reaching the molding cavity in the sectional dies from the sectional die side.
CONSTITUTION: A blank fluid guide movable core bar (mandrel) 3 is pressure held in sectional dies 1 from the side of the sectional dies 1 matching the product to be manufactured and the required amount of blank 4 is put in the cavity 5 provided in the sectional dies. Next, when the blank 4 is pressed by a punch 2, the blank 4 is force-flowed to the spacing formed by the cavity 5, punch 2 and core bar 3 and is thereby molded. Next, the punch 2 and core bar 3 are pulled from the dies 1, at which time, the sectional dies 1 are separated and the forged pipe joint molding 6 is released to outside the dies by a knock-out punch. The remaining blank part 7 slithtly remained at the molding is removed. This method considerably decreases piercing works and obviates the cutting of flow-lines disadvantageous for strength.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4129179A JPS55133842A (en) | 1979-04-05 | 1979-04-05 | Production of pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4129179A JPS55133842A (en) | 1979-04-05 | 1979-04-05 | Production of pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55133842A true JPS55133842A (en) | 1980-10-18 |
Family
ID=12604336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4129179A Pending JPS55133842A (en) | 1979-04-05 | 1979-04-05 | Production of pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55133842A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6025652U (en) * | 1983-07-27 | 1985-02-21 | マルマンゴルフ株式会社 | golf club head |
| JPS61162231A (en) * | 1985-01-12 | 1986-07-22 | Hosei Brake Kogyo Kk | Manufacture of vent plug for hydraulic machine |
| JP2016022514A (en) * | 2014-07-22 | 2016-02-08 | 新日鐵住金株式会社 | Manufacturing method of forged crank shaft |
-
1979
- 1979-04-05 JP JP4129179A patent/JPS55133842A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6025652U (en) * | 1983-07-27 | 1985-02-21 | マルマンゴルフ株式会社 | golf club head |
| JPS61162231A (en) * | 1985-01-12 | 1986-07-22 | Hosei Brake Kogyo Kk | Manufacture of vent plug for hydraulic machine |
| JP2016022514A (en) * | 2014-07-22 | 2016-02-08 | 新日鐵住金株式会社 | Manufacturing method of forged crank shaft |
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