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Title:
METALLIC COMPONENT RUPTURE START PORTION FORMING METHOD
Document Type and Number:
Japanese Patent JP2011000692
Kind Code:
A
Abstract:

To provide a method for forming a metallic component rupture start portion at a low cost to provide a stable rupture surface after rupture.

A metallic component rupture start portion forming method has: a first step of forming a groove portion 11 by machining at a portion corresponding to the rupture start portion of a metallic component 1; and a second step of forming a plurality of recess portions 12 at predetermined intervals on the bottom portion of the groove portion 11. This method provides the metallic component rupture start portion to be formed at a low cost to provide the stable rupture surface after rupture.


Inventors:
HASE KOICHI
Application Number:
JP2009147861A
Publication Date:
January 06, 2011
Filing Date:
June 22, 2009
Export Citation:
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Assignee:
YASUNAGA KK
International Classes:
B23P13/00; F16C7/02
Domestic Patent References:
JP2005106271A2005-04-21
JP2008036706A2008-02-21
JP2006150473A2006-06-15
JP2000502149A2000-02-22
JP2006300081A2006-11-02
Foreign References:
US5208979A1993-05-11
DE102007053814A12009-05-14
Attorney, Agent or Firm:
Koichi Miyagawa



 
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