Title:
MANUFACTURING METHOD OF CRANK SHAFT
Document Type and Number:
Japanese Patent JP2016191415
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method of a crank shaft capable of carrying out high-frequency quenching on a crank journal portion, a clamp pin portion and a fillet portion by a simple method without degrading processability.SOLUTION: A manufacturing method of a crank shaft includes a process for carrying out a prescribed roll processing to fillet portions 7, 9 at axial ends of crank journal portions 3a-3e and axial ends of clamp pin portions 5a-5d, and a process for carrying out high-frequency quenching to sliding faces 4 of the crank journal portions 3a-3e and sliding faces 6 of the clamp pin portions 5a-5d with the fillet portions 7, 9 of axial ends after the roll processing. Thus the high-frequency quenching of the crank shaft 1 can be carried out by a simple method of carrying out high-frequency quenching to the sliding faces 4 of the crank journal portions 3a-3e and the sliding faces 6 of the clamp pin portions 5a-5d with the fillet potions 7, 9 after the roll processing onto the fillet portions 7, 9.SELECTED DRAWING: Figure 9
Inventors:
TANIGUCHI YOSHIMASA
UENO SHINJI
KOTSUKI MITSUO
GOTO HAJIME
UENO SHINJI
KOTSUKI MITSUO
GOTO HAJIME
Application Number:
JP2015071249A
Publication Date:
November 10, 2016
Filing Date:
March 31, 2015
Export Citation:
Assignee:
MITSUBISHI MOTORS CORP
International Classes:
F16C3/08; B21J9/02; B21K1/08; C21D1/10; C21D9/30
Domestic Patent References:
| JPH10317062A | 1998-12-02 | |||
| JP2000337345A | 2000-12-05 |
Attorney, Agent or Firm:
Shiro Aihara
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