Title:
METAL WORKING METHOD AND METAL ELEMENT
Document Type and Number:
WIPO Patent Application WO/2005/080623
Kind Code:
A1
Abstract:
[PROBLEMS] A metal working method capable of continuously forming various metal elements that are increased in strength or ductility by micronizing a metallographic structure to thereby improve mass-productivity and reduce costs, and a metal element. When the deformation resistance of a metal element extending in one direction is locally lowered to form a low-deformation-resistance area that traverses the metal element and this low-deformation-resistance area is shear-deformed to micronize the metallographic structure of the metal element, a non-low-deformation-resistance area generating means is provided that increases deformation resistance lowered in the above low-deformation-resistance area to generate a non-low-deformation-resistance area, and a non-low-deformation-resistance area is generated along at least any one side edge of the low-deformation-resistance area by the non-low-deformation-resistance area generating means.
Inventors:
NAKAMURA KATSUAKI (JP)
Application Number:
PCT/JP2005/003218
Publication Date:
September 01, 2005
Filing Date:
February 25, 2005
Export Citation:
Assignee:
NAKAMURA KATSUAKI (JP)
International Classes:
B21C1/00; B21C23/01; B21C37/04; C21D7/02; C21D8/00; (IPC1-7): C22F1/00; B21C23/00; C21D8/00; C22F1/04; C22F1/18
Foreign References:
| JP2001321825A | 2001-11-20 | |||
| JP2002102919A | 2002-04-09 | |||
| JPH09111426A | 1997-04-28 | |||
| JP2000288675A | 2000-10-17 | |||
| JP2003019532A | 2003-01-21 |
Attorney, Agent or Firm:
Matsuo, Kenichiro (Shinkumi Akasaka Bldg. 10-17, Akasaka 1-chome, Chuo-k, Fukuoka-shi Fukuoka, JP)
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