Title:
METHOD OF SETTING ULTRASONIC SHOCK TREATMENT CONDITIONS FOR METAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2004/046395
Kind Code:
A1
Abstract:
A method of setting ultrasonic shock treatment conditions for a metal material for determining treatment conditions, particularly, a treatment temperature range according to the degree of a target reformation of the treated metal material when the metal material surface layer part is subjected to an ultrasonic shock treatment, characterized by comprising the steps of selecting, as a required effect by the ultrasonic shock treatment, one or a plurality of effects from the improvement of fatigue strength, reformation of surfaces, and improvement of weld cracking in the treated metal material, determining an ultrasonic shock treatment temperature for each effect, setting the conditions for the ultrasonic shock treatment, and finally determining the efficient combination of these steps.
Inventors:
TOMINAGA TOMONORI (JP)
HONMA KOJI (JP)
ISHIKAWA TADASHI (JP)
HIGO YAKICHI (JP)
TAKASHIMA KAZUKI (JP)
HONMA KOJI (JP)
ISHIKAWA TADASHI (JP)
HIGO YAKICHI (JP)
TAKASHIMA KAZUKI (JP)
Application Number:
PCT/JP2003/014596
Publication Date:
June 03, 2004
Filing Date:
November 17, 2003
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
TOMINAGA TOMONORI (JP)
HONMA KOJI (JP)
ISHIKAWA TADASHI (JP)
HIGO YAKICHI (JP)
TAKASHIMA KAZUKI (JP)
TOMINAGA TOMONORI (JP)
HONMA KOJI (JP)
ISHIKAWA TADASHI (JP)
HIGO YAKICHI (JP)
TAKASHIMA KAZUKI (JP)
International Classes:
C21D7/00; C21D7/04; C21D7/06; (IPC1-7): C21D7/04
Foreign References:
| JPH09234585A | 1997-09-09 | |||
| US6171415B1 | 2001-01-09 | |||
| JPS6479320A | 1989-03-24 | |||
| JPH081514A | 1996-01-09 | |||
| JP2003113418A | 2003-04-18 | |||
| JPS55119120A | 1980-09-12 | |||
| JPS63267164A | 1988-11-04 | |||
| US4893490A | 1990-01-16 |
Attorney, Agent or Firm:
Aoki, Atsushi (ISHIDA & ASSOCIATES Toranomon 37 Mori
Bldg., 5-1, Toranomon 3-chom, Minato-ku Tokyo, JP)
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