METHOD OF MANUFACTURING EXTERIOR PART FOR ASSEMBLY TYPE CAMSHAFT

Title:

METHOD OF MANUFACTURING EXTERIOR PART FOR ASSEMBLY TYPE CAMSHAFT

Document Type and Number:

WIPO Patent Application WO/2005/085604

Kind Code:

A1

Abstract:

A method of manufacturing an exterior part for an assembly type camshaft, wherein heat is rapidly removed from a cam piece constitution body (6) by a chiller (4) immediately after a molten metal is filled, and the constitution body is chilled (formed into white iron). Accordingly, the hardness of the cam piece constitution body (6) is remarkably increased, whereas the tensile strength and shearing strength thereof are lowered. Cam pieces in rough form and notches are alternately formed on the cast cam piece constitution body (6). Hammering is given to the notches with a breaking tool in the state of the cam piece constitution body (6) held on a holding device. Then, the cam piece constitution body (6) with low tensile strength is broken at the notches forming fragile parts to provide cam pieces.

More Like This:

JP3260638	MACHINING METHOD FOR CAM SHAFT ON BASIS OF SIGNAL ROTOR
JP7007144	Internal combustion engine
JP3143272	INTAKE/EXHAUST VALVE DRIVE CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE

Inventors:

OKUNO KAZUAKI (JP)
HARADA HIROHISA (JP)

Application Number:

PCT/JP2005/002299

Publication Date:

September 15, 2005

Filing Date:

February 16, 2005

Export Citation:

Click for automatic bibliography generation Help

Assignee:

HONDA MOTOR CO LTD (JP)
OKUNO KAZUAKI (JP)
HARADA HIROHISA (JP)

International Classes:

F01L1/04; B22D15/02; B22D15/04; B22D19/00; F01L1/047; F16H53/02; (IPC1-7): F01L1/04; B22D15/04

Foreign References:

JPS4891305U	1973-11-02
JPH01310113A	1989-12-14

Attorney, Agent or Firm:

Isono, Michizo c/o Isono International Patent Office (Sabo Kaikan Annex 7-4, Hirakawa-cho 2-chom, Chiyoda-ku Tokyo, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: STATIONARY AXIAL FLOW GAS TURBINE

Next Patent: EXHAUST EMISSION CONTROL DEVICE OF ENGINE