JPS555180A - Bending method of pipe - Google Patents

Bending method of pipe

Info

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
Application number
JP7909378A
Other languages
Japanese (ja)
Other versions
JPS6230849B2 (en
Inventor
Yoichi Hamanishi
Iwao Futahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP7909378A priority Critical patent/JPS555180A/en
Publication of JPS555180A publication Critical patent/JPS555180A/en
Publication of JPS6230849B2 publication Critical patent/JPS6230849B2/ja
Granted legal-status Critical Current

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
JP7909378A 1978-06-29 1978-06-29 Bending method of pipe Granted JPS555180A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03112026U (en) * 1990-03-05 1991-11-15

Cited By (9)

* Cited by examiner, † Cited by third party
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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