Title:
METHOD FOR PRODUCING HIGH STRENGTH LIGHT WEIGHT PART EXCELLENT IN BUCKLING STRENGTH AND PRODUCED CONNECTING ROD FOR INTERNAL COMBUSTION ENGINE
Document Type and Number:
Japanese Patent JP2006142355
Kind Code:
A
Abstract:
To provide a producing method with which a buckling strength in a high strength light weight parts produced with hot-forging, such as a connecting rod, can be improved.
In the method for producing the high strength light weight parts excellent in the buckling strength, when a part preformed material is formed, the hot-forging is applied to a portion except the strength needing portion and rolling is locally applied to the strength needing portion after hot-forging. Particularly, in the case of producing the connecting rod, a shape having thin web part and no draft part can be formed and in comparison with the case of employing only the hot-forging, the buckling strength can drastically be improved.
Inventors:
IWAMA NAOKI
KAMO SATOSHI
KATO HIDEHISA
TANAKA TATSUO
KAMO SATOSHI
KATO HIDEHISA
TANAKA TATSUO
Application Number:
JP2004337736A
Publication Date:
June 08, 2006
Filing Date:
November 22, 2004
Export Citation:
Assignee:
AICHI STEEL WORKS LTD
International Classes:
B21K1/14; B21H8/00; B21J1/04; F16C7/02
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