JPS56134024A - Bulging process of bent blank pipe - Google Patents
Bulging process of bent blank pipeInfo
- Publication number
- JPS56134024A JPS56134024A JP3733580A JP3733580A JPS56134024A JP S56134024 A JPS56134024 A JP S56134024A JP 3733580 A JP3733580 A JP 3733580A JP 3733580 A JP3733580 A JP 3733580A JP S56134024 A JPS56134024 A JP S56134024A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- bent
- arrow
- blank pipe
- punch
- 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.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To perform a bulging work without causing wrinkles in a bent part of a pipe, by press-exerting the same metal while inserting bent core metal in the bent blank pipe and introducing a high pressured fluid applied in the bent blank pipe.
CONSTITUTION: After a bent blank pipe 9 having straight shape is inserted into a straight part 2 of a split metallic mold 1, a punch shaft 11 made into one body with a hydraulic cylinder 10 is inserted from outside into the pipe 9. The cylinder 10 is moved in a direction of arrow A to drive an end of the pipe 9 into a bending part 3. Next a punch arm 6 is pressed in a direction of arrow B to insert a core metal 7 of a bent punch into the bending part of the pipe 9 and force the end of the pipe 9 sealed with a butting stepped-part 8. Then a piston 12 in the cylinder 10 is pushed in a direction of arrow C to press a forced feeding of a high pressured fluid inside the pipe 9 through a through-hole 13, forming a bluging part at the bending part of the pipe 9.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55037335A JPS5838257B2 (en) | 1980-03-24 | 1980-03-24 | Bulge processing method for curved material pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55037335A JPS5838257B2 (en) | 1980-03-24 | 1980-03-24 | Bulge processing method for curved material pipes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56134024A true JPS56134024A (en) | 1981-10-20 |
JPS5838257B2 JPS5838257B2 (en) | 1983-08-22 |
Family
ID=12494744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55037335A Expired JPS5838257B2 (en) | 1980-03-24 | 1980-03-24 | Bulge processing method for curved material pipes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5838257B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0430729A (en) * | 1990-05-29 | 1992-02-03 | Takaki Yokoyama | Dripping type distributor device |
-
1980
- 1980-03-24 JP JP55037335A patent/JPS5838257B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5838257B2 (en) | 1983-08-22 |
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