JPS55103223A - Method and apparatus for straightening bend of bar material - Google Patents

Method and apparatus for straightening bend of bar material

Info

Publication number
JPS55103223A
JPS55103223A JP1043579A JP1043579A JPS55103223A JP S55103223 A JPS55103223 A JP S55103223A JP 1043579 A JP1043579 A JP 1043579A JP 1043579 A JP1043579 A JP 1043579A JP S55103223 A JPS55103223 A JP S55103223A
Authority
JP
Japan
Prior art keywords
shaft
die
bar material
hole
pressurizing
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
JP1043579A
Other languages
Japanese (ja)
Inventor
Kazuyuki Sasaya
Naonobu Kanamaru
Naotatsu Asahi
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1043579A priority Critical patent/JPS55103223A/en
Publication of JPS55103223A publication Critical patent/JPS55103223A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/10—Type of spring
    • B60G2202/13—Torsion spring
    • B60G2202/135—Stabiliser bar and/or tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/10—Mounting of suspension elements
    • B60G2204/12—Mounting of springs or dampers
    • B60G2204/122—Mounting of torsion springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/45—Stops limiting travel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012—Hollow or tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/40—Constructional features of dampers and/or springs
    • B60G2206/42—Springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping

Landscapes

  • Forging (AREA)

Abstract

PURPOSE: To straighten the bend of bar material extrusion molded at high job efficiency, by applying pressure in the axial direction and plastically deforming the bar material, with the outer circumference of the bar material to be processed being densely enclosed by a clamping fixture approximately over the entire length.
CONSTITUTION: A shaft 31 inserted in a through-hole 42 in a block 41 is set in a through-hole 55 in a die 5 of the movable platen side being lowered. When the die 5 is pushed down in this state, the lower end of the shaft 31 goes down in the through-hole 42 while it is being drawn by a restriction 48. When the lower end of the shaft 31 abuts against the upper end of a stopper 47, the lowering motion of the shaft 31 stops, but the die 5 is pushed down until abutting against a die 4 of the fixed side, so that the shaft 31 is plastically deformed by receiving compressive force (about 1.2W1.3 times the deforming resistance of the material) directed to the inside along the axial line. As a result, the residual stress at the time of extrusion molding is defeated by this compressive force, and only the stress along the axial line is left over after pressurizing. After pressurizing, a ring-shaped flange part 321 formed on a shaft 32 due to small space 57 is cut off.
COPYRIGHT: (C)1980,JPO&Japio
JP1043579A 1979-02-02 1979-02-02 Method and apparatus for straightening bend of bar material Pending JPS55103223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1043579A JPS55103223A (en) 1979-02-02 1979-02-02 Method and apparatus for straightening bend of bar material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1043579A JPS55103223A (en) 1979-02-02 1979-02-02 Method and apparatus for straightening bend of bar material

Publications (1)

Publication Number Publication Date
JPS55103223A true JPS55103223A (en) 1980-08-07

Family

ID=11750074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1043579A Pending JPS55103223A (en) 1979-02-02 1979-02-02 Method and apparatus for straightening bend of bar material

Country Status (1)

Country Link
JP (1) JPS55103223A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008200735A (en) * 2007-02-22 2008-09-04 Honda Motor Co Ltd Manufacturing method and manufacturing apparatus for shaft
JP2008202750A (en) * 2007-02-22 2008-09-04 Honda Motor Co Ltd Shaft manufacturing method and device
CN103240301A (en) * 2013-05-09 2013-08-14 四川五洋工贸有限责任公司 Slender rod metal part straightening method and mold

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830664A (en) * 1971-08-26 1973-04-23
JPS50116357A (en) * 1973-12-05 1975-09-11

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4830664A (en) * 1971-08-26 1973-04-23
JPS50116357A (en) * 1973-12-05 1975-09-11

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008200735A (en) * 2007-02-22 2008-09-04 Honda Motor Co Ltd Manufacturing method and manufacturing apparatus for shaft
JP2008202750A (en) * 2007-02-22 2008-09-04 Honda Motor Co Ltd Shaft manufacturing method and device
CN103240301A (en) * 2013-05-09 2013-08-14 四川五洋工贸有限责任公司 Slender rod metal part straightening method and mold

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