JPS555180A - Bending method of pipe - Google Patents
Bending method of pipeInfo
- Publication number
- JPS555180A JPS555180A JP7909378A JP7909378A JPS555180A JP S555180 A JPS555180 A JP S555180A JP 7909378 A JP7909378 A JP 7909378A JP 7909378 A JP7909378 A JP 7909378A JP S555180 A JPS555180 A JP S555180A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- radius
- bending
- die
- pressure 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.)
- Granted
Links
Landscapes
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
PURPOSE: To enable a thin-walled pipe for automotive exhaust pipes, etc. to be bent to a small radius of curvature without creasing, flattening or the like by using a rotatable bending die whose radius of the pressure die side peripheral face has been specified and a pressure die movable in the tangential direction thereby bending the pipe while reducing its overall circumferential length.
CONSTITUTION: In bending a pipe 3 by using a pressure die 19 movable in the tangential direction and a rotatable bending die 11, the pressure die 19 side peripheral face of the pipe 3 is maintained nearly the same as the radius of the pipe 3 and the bending die 11 side peripheral surface is deformed to the shape having two peripheral faces of a radius larger than the radius of the pipe 3 (e.g., 1.12 times the radius of the pipe), whereby bending is accomplished while the overall circumferential length of the pipe is being reduced by several % (e.g. 5.3%).
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7909378A JPS555180A (en) | 1978-06-29 | 1978-06-29 | Bending method of pipe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7909378A JPS555180A (en) | 1978-06-29 | 1978-06-29 | Bending method of pipe |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS555180A true JPS555180A (en) | 1980-01-16 |
JPS6230849B2 JPS6230849B2 (en) | 1987-07-04 |
Family
ID=13680258
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7909378A Granted JPS555180A (en) | 1978-06-29 | 1978-06-29 | Bending method of pipe |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555180A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58212813A (en) * | 1982-06-01 | 1983-12-10 | Sankei Giken Kogyo Kk | Bending device of metallic square pipe |
JPS61193726A (en) * | 1985-02-21 | 1986-08-28 | Kobe Steel Ltd | Bend forming method |
JP2006088178A (en) * | 2004-09-22 | 2006-04-06 | Jfe Steel Kk | Apparatus and method for bending pipe |
JP2006289488A (en) * | 2005-03-14 | 2006-10-26 | Jfe Steel Kk | Pipe bending device, and pipe bending method |
JP2006315077A (en) * | 2005-04-14 | 2006-11-24 | Jfe Steel Kk | Pipe bending machine and pipe bending method |
JP2006326637A (en) * | 2005-05-26 | 2006-12-07 | Jfe Steel Kk | Pipe bending machine and pipe bending method |
JP2010046675A (en) * | 2008-08-19 | 2010-03-04 | Chiyoda Kogyo Co Ltd | Pipe bending device and pipe bending method |
CN109675978A (en) * | 2019-01-12 | 2019-04-26 | 天津鹏豪电动自行车有限公司 | A kind of bending machine can be used for straight tube and U-tube |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03112026U (en) * | 1990-03-05 | 1991-11-15 |
-
1978
- 1978-06-29 JP JP7909378A patent/JPS555180A/en active Granted
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58212813A (en) * | 1982-06-01 | 1983-12-10 | Sankei Giken Kogyo Kk | Bending device of metallic square pipe |
JPH0241372B2 (en) * | 1982-06-01 | 1990-09-17 | ||
JPS61193726A (en) * | 1985-02-21 | 1986-08-28 | Kobe Steel Ltd | Bend forming method |
JP2006088178A (en) * | 2004-09-22 | 2006-04-06 | Jfe Steel Kk | Apparatus and method for bending pipe |
JP2006289488A (en) * | 2005-03-14 | 2006-10-26 | Jfe Steel Kk | Pipe bending device, and pipe bending method |
JP2006315077A (en) * | 2005-04-14 | 2006-11-24 | Jfe Steel Kk | Pipe bending machine and pipe bending method |
JP2006326637A (en) * | 2005-05-26 | 2006-12-07 | Jfe Steel Kk | Pipe bending machine and pipe bending method |
JP2010046675A (en) * | 2008-08-19 | 2010-03-04 | Chiyoda Kogyo Co Ltd | Pipe bending device and pipe bending method |
CN109675978A (en) * | 2019-01-12 | 2019-04-26 | 天津鹏豪电动自行车有限公司 | A kind of bending machine can be used for straight tube and U-tube |
Also Published As
Publication number | Publication date |
---|---|
JPS6230849B2 (en) | 1987-07-04 |
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