JPS57159229A - Manufacture of cylindrical member - Google Patents

Manufacture of cylindrical member

Info

Publication number
JPS57159229A
JPS57159229A JP4581681A JP4581681A JPS57159229A JP S57159229 A JPS57159229 A JP S57159229A JP 4581681 A JP4581681 A JP 4581681A JP 4581681 A JP4581681 A JP 4581681A JP S57159229 A JPS57159229 A JP S57159229A
Authority
JP
Japan
Prior art keywords
core
punch
diameter
force
cylindrical member
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
JP4581681A
Other languages
Japanese (ja)
Other versions
JPH0117769B2 (en
Inventor
Yasuhisa Tozawa
Kazuaki Deguchi
Kenji Masuda
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.)
Taiho Kogyo Co Ltd
Original Assignee
Taiho Kogyo Co 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 Taiho Kogyo Co Ltd filed Critical Taiho Kogyo Co Ltd
Priority to JP4581681A priority Critical patent/JPS57159229A/en
Publication of JPS57159229A publication Critical patent/JPS57159229A/en
Publication of JPH0117769B2 publication Critical patent/JPH0117769B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

PURPOSE:To improve roundness and thickness accuracy of a cylindrical member by making sizing process and lateral pressing process of a cylindrical member of butted type made by incurvating a square plate almost simultaneously. CONSTITUTION:A cylindrical member 1 made by incurvating a square plate and butting both ends is attached to the core 5 of a punch 4, and pressed in the bore 3 of a die 2 by force P. Since the diameter D2 of the core 5 is formed greater than the inner diameter D4 of the member 1 before working, force is applied to the member 1 by the core 5 pressed in the direction of expanding the diameter. At the same time, axial compressive force is loaded by insertion of the punch 4 on the member 1 through the punch 4 and a knock out punch 6. Accordingly, the member 1 is strongly pressed against the inner circumferential face of the bore 3 and the outer circumferential face of the core 5 which are made beforehand at high roundness by pressing force in the direction of expanding diameter and axial compressive force working almost simultaneously and particularly excellent roundness and thickness accuracy are given to the member 1.
JP4581681A 1981-03-28 1981-03-28 Manufacture of cylindrical member Granted JPS57159229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4581681A JPS57159229A (en) 1981-03-28 1981-03-28 Manufacture of cylindrical member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4581681A JPS57159229A (en) 1981-03-28 1981-03-28 Manufacture of cylindrical member

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP27558085A Division JPS61235030A (en) 1985-12-06 1985-12-06 Production of cylindrical member

Publications (2)

Publication Number Publication Date
JPS57159229A true JPS57159229A (en) 1982-10-01
JPH0117769B2 JPH0117769B2 (en) 1989-04-03

Family

ID=12729765

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4581681A Granted JPS57159229A (en) 1981-03-28 1981-03-28 Manufacture of cylindrical member

Country Status (1)

Country Link
JP (1) JPS57159229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188926A (en) * 1984-10-09 1986-05-07 Koji Kondo Production of tape guide cylinder
US5666849A (en) * 1995-02-02 1997-09-16 Honda Giken Kogyo Kabushiki Kaisha Method of correcting the dimension of workpieces

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017190A (en) * 1973-05-03 1975-02-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5017190A (en) * 1973-05-03 1975-02-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6188926A (en) * 1984-10-09 1986-05-07 Koji Kondo Production of tape guide cylinder
US5666849A (en) * 1995-02-02 1997-09-16 Honda Giken Kogyo Kabushiki Kaisha Method of correcting the dimension of workpieces

Also Published As

Publication number Publication date
JPH0117769B2 (en) 1989-04-03

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