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MY192796A - Production method of tubular member - Google Patents

Production method of tubular member

Info

Publication number
MY192796A
MY192796A MYPI2021000948A MYPI2021000948A MY192796A MY 192796 A MY192796 A MY 192796A MY PI2021000948 A MYPI2021000948 A MY PI2021000948A MY PI2021000948 A MYPI2021000948 A MY PI2021000948A MY 192796 A MY192796 A MY 192796A
Authority
MY
Malaysia
Prior art keywords
pipe part
workpiece
positional relation
processing tool
straight pipe
Prior art date
Application number
MYPI2021000948A
Inventor
IWAMOTO Hirokazu
Hayakawa Hisashi
KIMURA Tsunehiko
Original Assignee
Sango 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 Sango Co Ltd filed Critical Sango Co Ltd
Publication of MY192796A publication Critical patent/MY192796A/en

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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • 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
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing
    • 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
    • B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

In a method for forming a tubular member (200) comprising a straight pipe part (210) and a shrinking pipe part (220) which is adjacent to the straight pipe part (210), has an axis in at least one positional relation among an eccentric positional relation, an inclined positional relation and a skew positional relation with respect to an axis of the straight pipe part (210) and has a final target shape with a part of the shrinking pipe part (220) projecting outer than a virtual extension surface of a circumference surface of the straight pipe part (210) by a spinning processing, a pressing force by a processing tool (310) on one side of the workpiece (100) is made smaller than that on the other side to make a part of the workpiece (100) project outside of the virtual extension surface to an extent equal to or more than the final target shape in a first step, and thereafter a difference between the pressing forces on the one side and the other side is reduced to form the final target shape. Thereby, a tubular member (200) having a shrinking pipe part (220) projecting outer than the virtual extension surface can be formed more easily. At least in a part of plurality of paths of the processing tool (310) in the first step, a state where the processing tool (310) does not contact with the one side of the workpiece (100) may be included. Even in such a path, it is desirable that the processing tool (310) presses the workpiece (100) at least at a starting point of the path.
MYPI2021000948A 2019-08-06 2020-05-20 Production method of tubular member MY192796A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2019144306 2019-08-06
PCT/JP2020/019876 WO2021024572A1 (en) 2019-08-06 2020-05-20 Method for manufacturing cylindrical member

Publications (1)

Publication Number Publication Date
MY192796A true MY192796A (en) 2022-09-09

Family

ID=74503434

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2021000948A MY192796A (en) 2019-08-06 2020-05-20 Production method of tubular member

Country Status (3)

Country Link
JP (1) JP7041319B2 (en)
MY (1) MY192796A (en)
WO (1) WO2021024572A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2957154B2 (en) * 1997-11-18 1999-10-04 株式会社三五 Pipe end forming method and apparatus
JP4450504B2 (en) * 2000-12-28 2010-04-14 株式会社三五 Workpiece edge forming method
JP2003010935A (en) * 2001-06-29 2003-01-15 Toyota Motor Corp Hollow member, manufacturing method therefor, and fluid circulation system using the hollow member
JP4003056B2 (en) * 2001-10-09 2007-11-07 トヨタ自動車株式会社 Spinning molding method and spinning molding apparatus

Also Published As

Publication number Publication date
JPWO2021024572A1 (en) 2021-10-21
WO2021024572A1 (en) 2021-02-11
JP7041319B2 (en) 2022-03-23

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