JPS6427734A - Deburring method for steering yoke - Google Patents

Deburring method for steering yoke

Info

Publication number
JPS6427734A
JPS6427734A JP18140487A JP18140487A JPS6427734A JP S6427734 A JPS6427734 A JP S6427734A JP 18140487 A JP18140487 A JP 18140487A JP 18140487 A JP18140487 A JP 18140487A JP S6427734 A JPS6427734 A JP S6427734A
Authority
JP
Japan
Prior art keywords
burr
preform
upper die
outside
steering yoke
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
JP18140487A
Other languages
Japanese (ja)
Other versions
JP2570309B2 (en
Inventor
Shigenori Mae
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP62181404A priority Critical patent/JP2570309B2/en
Publication of JPS6427734A publication Critical patent/JPS6427734A/en
Application granted granted Critical
Publication of JP2570309B2 publication Critical patent/JP2570309B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/027—Trimming

Abstract

PURPOSE:To prevent the generation of a blanked burr without flowing out a material from the gap of upper and lower dies by removing a burr on the circumference of the claw part of a preform by dividing it in plural times. CONSTITUTION:After pressing a preform 1 by an upper die, the lower die suitable for removing the outside burr 3a located at the outside of the preform 1 by shearing is relatively approached to the upper die to remove the outside burr 3a. Then after pressing the preform 1 by using the upper die, the lower die suitable for removing by shearing the inside burr 3b is relatively approached to the upper die to remove the inside burr 3b located at the inside of the claw part. Finally the inside of the arm 2 of the preform 1 is subjected to cold coining.
JP62181404A 1987-07-21 1987-07-21 Deburring method for steering yoke Expired - Lifetime JP2570309B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62181404A JP2570309B2 (en) 1987-07-21 1987-07-21 Deburring method for steering yoke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62181404A JP2570309B2 (en) 1987-07-21 1987-07-21 Deburring method for steering yoke

Publications (2)

Publication Number Publication Date
JPS6427734A true JPS6427734A (en) 1989-01-30
JP2570309B2 JP2570309B2 (en) 1997-01-08

Family

ID=16100164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62181404A Expired - Lifetime JP2570309B2 (en) 1987-07-21 1987-07-21 Deburring method for steering yoke

Country Status (1)

Country Link
JP (1) JP2570309B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372282A (en) * 1976-12-09 1978-06-27 Sumita Tetsukoushiyo Kk Method of removing burrs
JPS59220241A (en) * 1983-05-31 1984-12-11 Komatsu Ltd Two step trimming of hot forged product

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5372282A (en) * 1976-12-09 1978-06-27 Sumita Tetsukoushiyo Kk Method of removing burrs
JPS59220241A (en) * 1983-05-31 1984-12-11 Komatsu Ltd Two step trimming of hot forged product

Also Published As

Publication number Publication date
JP2570309B2 (en) 1997-01-08

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