Title:
溶接止端部の多重ピーニング処理方法
Document Type and Number:
Japanese Patent JP4842409
Kind Code:
B2
Abstract:
A multiple peening treatment method wherein tip radius of curvature (Ri) of a vibration terminal used for an i-th time and tip radius of curvature (Ri + 1) of a vibration terminal used for an (i + 1)th time satisfy Ri i + 1 = 2Ri, wherein the first peening treatment uses a vibration terminal in which the tip radius of curvature (Ri)is 1-3 mm, and is performed until the weld toe line and overlap defects are removed, wherein the second or subsequent peening treatment is performed until overlap defects are removed with the vibration terminal of the tip radius of curvature (Ri + 1), and wherein the final peening treatment is performed using a vibration terminal in which the tip radius of curvature (Ri + 1) is 4.0 mm or more.
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Inventors:
Hiroshi Shimanuki
Application Number:
JP2011518624A
Publication Date:
December 21, 2011
Filing Date:
November 04, 2010
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B23K31/00; C21D7/06
Domestic Patent References:
| JP2004130313A | 2004-04-30 | |||
| JP2004136313A | 2004-05-13 | |||
| JP2006167724A | 2006-06-29 | |||
| JP2006175511A | 2006-07-06 | |||
| JP2006175512A | 2006-07-06 | |||
| JP2007283355A | 2007-11-01 | |||
| JP2008290125A | 2008-12-04 | |||
| JP2009034721A | 2009-02-19 |
Attorney, Agent or Firm:
Atsushi Aoki
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu
Takashi Ishida
Tetsuji Koga
Hiroshi Kamematsu
Nakamura Asayuki
Nagasaka Tomoyasu