JPS5478354A - Cold forming method for elbow - Google Patents
Cold forming method for elbowInfo
- Publication number
- JPS5478354A JPS5478354A JP14629077A JP14629077A JPS5478354A JP S5478354 A JPS5478354 A JP S5478354A JP 14629077 A JP14629077 A JP 14629077A JP 14629077 A JP14629077 A JP 14629077A JP S5478354 A JPS5478354 A JP S5478354A
- Authority
- JP
- Japan
- Prior art keywords
- pipe blank
- mandrel
- die
- curved
- piece
- 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
Abstract
PURPOSE: To cold form the elbow of high quality from a piece of pipe blank at high yield, by applying the emulsion type lubricant of specified water-soluble synthetic resin on the outer and inner surfaces of the piece of pipe blank, the inner surface of curved hole of the die, the outer surface of the forming roll, and the curved end face of the mandrel.
CONSTITUTION: The emulsion type lubricant of water-soluble synthetic resin of polyester group or acryl group is applied or spread over the inner and outer surfaces of piece of pipe blank, the inner surface of curved hole 1 of the die 3, the outer surface of forming roll 2, and the surface of curved end 4 of mandrel 5. Next, the specified number of pieces of pipe blank to be worked are inserted into the mandrel 5 from its rear end, and these pieces of pipe blank are pushed into the curved hole 1 of the die 3 by the pushing head 8 driven by the cylinder 7 of the pusher feed 6. The cold formed elbows are continuously delivered from the outlet of the curved hole 1 through the forming roll 2.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14629077A JPS5478354A (en) | 1977-12-05 | 1977-12-05 | Cold forming method for elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14629077A JPS5478354A (en) | 1977-12-05 | 1977-12-05 | Cold forming method for elbow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5478354A true JPS5478354A (en) | 1979-06-22 |
Family
ID=15404331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14629077A Pending JPS5478354A (en) | 1977-12-05 | 1977-12-05 | Cold forming method for elbow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5478354A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63112027A (en) * | 1986-10-29 | 1988-05-17 | Sumitomo Metal Ind Ltd | Manufacture of thick elbow |
| JP2013052408A (en) * | 2011-09-02 | 2013-03-21 | Shinkusu:Kk | Metal tube bending apparatus, and method for pressurizing water-soluble lubricant |
-
1977
- 1977-12-05 JP JP14629077A patent/JPS5478354A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63112027A (en) * | 1986-10-29 | 1988-05-17 | Sumitomo Metal Ind Ltd | Manufacture of thick elbow |
| JPH0518649B2 (en) * | 1986-10-29 | 1993-03-12 | Sumitomo Metal Ind | |
| JP2013052408A (en) * | 2011-09-02 | 2013-03-21 | Shinkusu:Kk | Metal tube bending apparatus, and method for pressurizing water-soluble lubricant |
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