Title:
CAM SHAFT MANUFACTURING METHOD AND GEAR SHAFT MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2014/163108
Kind Code:
A1
Abstract:
This cam shaft manufacturing method has: a split mold group preparation step; a processing preparation step, wherein cams (equipped with cam main bodies having a through-hole and smaller in size than cam accommodating parts, and equipped with ribs provided on both sides in the thickness direction of the cam main bodies and capable of fitting into rib accommodating parts), and a hollow shaft, are prepared, and the cam main bodies are inserted into the cam accommodating parts and the ribs are fitted into the rib accommodating parts, and the hollow shaft is inserted into the through-holes of the cams; and a processing step, wherein hydrofoam processing is performed and the hollow shaft is expanded, thereby securing the cams to the hollow shaft.
Inventors:
MIZUMURA MASAAKI (JP)
TOMIZAWA ATSUSHI (JP)
ARITA HIDEHIRO (JP)
TOMIZAWA ATSUSHI (JP)
ARITA HIDEHIRO (JP)
Application Number:
PCT/JP2014/059734
Publication Date:
October 09, 2014
Filing Date:
April 02, 2014
Export Citation:
Assignee:
NIPPON STEEL & SUMITOMO METAL CORP (JP)
International Classes:
F01L1/04; B21D26/033; B21D39/08; B21D53/84; F16C3/02
Foreign References:
| JP2003314576A | 2003-11-06 | |||
| JP2008163833A | 2008-07-17 | |||
| JP2004011743A | 2004-01-15 | |||
| JPH07208118A | 1995-08-08 | |||
| JPS63238933A | 1988-10-05 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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