Title:
METHOD FOR IMPROVING FATIGUE RESISTANCE PROPERTY FOR WELDED JOINT
Document Type and Number:
WIPO Patent Application WO/2020/111017
Kind Code:
A1
Abstract:
Peening is performed at a room temperature for a surface of a weld toe and/or structure members close to the weld toe of a welded joint acquired by welding the structure members which constitute a weld structure, and then an aging heat treatment is performed in which the welded joint is held for one second or longer within a temperature range of 150 to 450ºC and is air-cooled thereafter.
Inventors:
SADASUE TERUKI (JP)
HANDA TSUNEHISA (JP)
MURAKAMI YOSHIAKI (JP)
HANDA TSUNEHISA (JP)
MURAKAMI YOSHIAKI (JP)
Application Number:
PCT/JP2019/046045
Publication Date:
June 04, 2020
Filing Date:
November 26, 2019
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
B23K31/00; C21D7/06; C21D9/50; B24C1/10
Foreign References:
| JP2000233625A | 2000-08-29 | |||
| JP2005510628A | 2005-04-21 | |||
| JPS5952085B2 | 1984-12-18 |
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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