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Patent Searching and Data


Title:
METHOD FOR FORMING BREAKAGE START SECTION OF METALLIC PART
Document Type and Number:
WIPO Patent Application WO/2010/150753
Kind Code:
A1
Abstract:
A method for forming a breakage start section of a metallic part, provided with a first step for forming by machining a groove (11) in a portion of the metallic part (1), said portion corresponding to the breakage start section, and also with a second step for forming recesses (12) in the bottom portion of the groove (11) in such a manner that the recesses (12) are separated from each other at predetermined intervals. The breakage start section of the metallic part, said breakage start section having a stable breakage surface after breakage, can be formed at low cost by the method, and the method can manufacture a connecting rod having uniform breakage surfaces which can be obtained by impact energy significantly lower than that conventionally required. High-quality connecting rods can be obtained while satisfying the demand for energy saving.

Inventors:
HASE HIROICHI (JP)
Application Number:
JP2010/060487
Publication Date:
December 29, 2010
Filing Date:
June 21, 2010
Export Citation:
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Assignee:
YASUNAGA KK (?5180834, JP)
HASE HIROICHI (JP)
International Classes:
B23P13/00; F16C7/02
Foreign References:
JP2006308027A2006-11-09
JP2006300081A2006-11-02
JP2005074537A2005-03-24
JP2000502149A2000-02-22
US5208979A1993-05-11
DE102007053814A12009-05-14
Attorney, Agent or Firm:
MIYAKAWA Kohichi (?2510055, JP)
Hirokazu Miyagawa (?2510055, JP)
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