JPS5440270A - Upsetting method for end portion of metallic pipe - Google Patents

Upsetting method for end portion of metallic pipe

Info

Publication number
JPS5440270A
JPS5440270A JP10643277A JP10643277A JPS5440270A JP S5440270 A JPS5440270 A JP S5440270A JP 10643277 A JP10643277 A JP 10643277A JP 10643277 A JP10643277 A JP 10643277A JP S5440270 A JPS5440270 A JP S5440270A
Authority
JP
Japan
Prior art keywords
pipe
expanded
upsetting
work
diameter
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
JP10643277A
Other languages
Japanese (ja)
Other versions
JPS6026618B2 (en
Inventor
Terumori Ueda
Tetsuo Yamamoto
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP10643277A priority Critical patent/JPS6026618B2/en
Publication of JPS5440270A publication Critical patent/JPS5440270A/en
Publication of JPS6026618B2 publication Critical patent/JPS6026618B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To easily, efficiently carry out the upsetting work without giving the deformation to the pipe blank portion of the raw pipe, by alternately repeating necessary times the expanding work which is carried out giving an axial compression force to the pipe blank portion so as to make the compression stress to be lower than the yield stress of the material, and the drawing work for reducing the pipe diameter.
CONSTITUTION: The raw pipe 12 is inserted into the guide bush 11; an oil pressure P1 is introduced to the upsetting cylinder 17 on purpose to move the cylinder 17 to the right; at the same time, the press head 15 is moved to the right by the reciprocator; and then, the press head 15 is further moved to the right under a condition that the tip face of the upsetting tool 16 is contacting with the end face of the raw pipe 12. The pressure P1 is settled so as to make the compression stress generated in the pipe blank portion 12b to be lower than the yield stress of the material. Hereby, the wall thickness of the expanded portion holds the original thickness or the approximate condition. Next, the drawing work for the expanded pipe 13 is carried out by the drawing apparatus, on purpose to restore the original diameter of the expanded pipe; hereby, this reduction in the diameter increases the wall thickness of the expanded portion, and then, the pipe with the upset end portion can be manufactured.
COPYRIGHT: (C)1979,JPO&Japio
JP10643277A 1977-09-05 1977-09-05 Upsetting method for metal pipe ends Expired JPS6026618B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10643277A JPS6026618B2 (en) 1977-09-05 1977-09-05 Upsetting method for metal pipe ends

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10643277A JPS6026618B2 (en) 1977-09-05 1977-09-05 Upsetting method for metal pipe ends

Publications (2)

Publication Number Publication Date
JPS5440270A true JPS5440270A (en) 1979-03-29
JPS6026618B2 JPS6026618B2 (en) 1985-06-25

Family

ID=14433484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10643277A Expired JPS6026618B2 (en) 1977-09-05 1977-09-05 Upsetting method for metal pipe ends

Country Status (1)

Country Link
JP (1) JPS6026618B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757619A (en) * 1980-09-25 1982-04-06 Matsushita Electric Ind Co Ltd Holding device of plastic forming parts of hot air blowing type
JPS57156313U (en) * 1981-03-28 1982-10-01
JPS58118210A (en) * 1982-01-04 1983-07-14 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of joining thermoplastic material to thermosetting material
JPH0422150U (en) * 1990-06-16 1992-02-24

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6515274B2 (en) * 2014-10-03 2019-05-22 日本製鉄株式会社 Device and method for manufacturing end-thickened steel pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5757619A (en) * 1980-09-25 1982-04-06 Matsushita Electric Ind Co Ltd Holding device of plastic forming parts of hot air blowing type
JPS57156313U (en) * 1981-03-28 1982-10-01
JPS58118210A (en) * 1982-01-04 1983-07-14 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション Method of joining thermoplastic material to thermosetting material
JPS6240180B2 (en) * 1982-01-04 1987-08-27 Intaanashonaru Bijinesu Mashiinzu Corp
JPH0422150U (en) * 1990-06-16 1992-02-24

Also Published As

Publication number Publication date
JPS6026618B2 (en) 1985-06-25

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