JPS5758926A - Method and apparatus for forming cylindrical work - Google Patents

Method and apparatus for forming cylindrical work

Info

Publication number
JPS5758926A
JPS5758926A JP55133047A JP13304780A JPS5758926A JP S5758926 A JPS5758926 A JP S5758926A JP 55133047 A JP55133047 A JP 55133047A JP 13304780 A JP13304780 A JP 13304780A JP S5758926 A JPS5758926 A JP S5758926A
Authority
JP
Japan
Prior art keywords
mandrel
diameter
working part
working
workpiece
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
Application number
JP55133047A
Other languages
Japanese (ja)
Inventor
Terushige Nakamura
Kazuhiko Oshiumi
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP55133047A priority Critical patent/JPS5758926A/en
Publication of JPS5758926A publication Critical patent/JPS5758926A/en
Pending legal-status Critical Current

Links

Landscapes

  • Metal Extraction Processes (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

PURPOSE: To obtain a highly accurate thin cylinder stably in drawing system tube spinning by drawing a cylindrical material made smaller in diameter than the outer diameter of the meandrel in axial direction of the mandrel and expanding, and thereby reducing floating up of the workpiece.
CONSTITUTION: A deep drawing part 1b smaller in diameter than a spinned part 1a is formed in a mandrel 1, and 1≥ drawing rolls 10 are arranged around it rotatably. The workpiece 4 is set to the andrel 1 and deep-drawn by the pressure of a roll 10 at a working part 1b in front (oposite to the direction of drawing) of a working part 1a. After that, it is expanded to the mandrel diameter of the working part 1a and undergoes shear spinning. In consequence, the material 4 flows along the mandrel as expanding is made after drawing, and the gap between the material 4 and the working part 1a can be made to almost zero. That is, the gap can be kept constant even if the accuracy of the inner diameter of previous working or round- ness is not sufficient.
COPYRIGHT: (C)1982,JPO&Japio
JP55133047A 1980-09-26 1980-09-26 Method and apparatus for forming cylindrical work Pending JPS5758926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55133047A JPS5758926A (en) 1980-09-26 1980-09-26 Method and apparatus for forming cylindrical work

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55133047A JPS5758926A (en) 1980-09-26 1980-09-26 Method and apparatus for forming cylindrical work

Publications (1)

Publication Number Publication Date
JPS5758926A true JPS5758926A (en) 1982-04-09

Family

ID=15095563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55133047A Pending JPS5758926A (en) 1980-09-26 1980-09-26 Method and apparatus for forming cylindrical work

Country Status (1)

Country Link
JP (1) JPS5758926A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007325420A (en) * 2006-06-01 2007-12-13 Chugoku Electric Power Co Inc:The Rotary ivy-like plant entwinement prevention apparatus
JP2008012549A (en) * 2006-07-04 2008-01-24 Nissan Motor Co Ltd Apparatus and method of working fine shape, and sliding member
JP2012245551A (en) * 2011-05-30 2012-12-13 Chuo Motor Wheel Co Ltd Method for forming rim

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007325420A (en) * 2006-06-01 2007-12-13 Chugoku Electric Power Co Inc:The Rotary ivy-like plant entwinement prevention apparatus
JP2008012549A (en) * 2006-07-04 2008-01-24 Nissan Motor Co Ltd Apparatus and method of working fine shape, and sliding member
JP2012245551A (en) * 2011-05-30 2012-12-13 Chuo Motor Wheel Co Ltd Method for forming rim

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