WELDING JOINT HAVING EXCELLENT FATIGUE CHARACTERISTICS AND METHOD FOR MANUFACTURING SAME

Title:

WELDING JOINT HAVING EXCELLENT FATIGUE CHARACTERISTICS AND METHOD FOR MANUFACTURING SAME

Document Type and Number:

WIPO Patent Application WO/2017/209459

Kind Code:

A1

Abstract:

Disclosed are a welding joint having excellent fatigue characteristics and a method for manufacturing the same. A welding joint having excellent fatigue characteristics according to an embodiment of the present invention comprises: a welding metal formed through welding between a plurality of steel plates arranged such that connecting portions thereof are overlapped; and a re-melted portion formed on an end of the welding metal, the surface layer of the re-melted portion having a Vickers hardness value of 200Hv or higher.

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Inventors:

BAE GYU YEOL (KR)
SHIN HYEON JEONG (KR)
KIM CHUNG HA (KR)
LEE TAE-YOUNG (KR)

Application Number:

PCT/KR2017/005527

Publication Date:

December 07, 2017

Filing Date:

May 26, 2017

Export Citation:

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Assignee:

POSCO (KR)

International Classes:

C21D9/50; C21D10/00; B23K101/00; B23K101/18

Foreign References:

JP2004148333A	2004-05-27
KR20140133935A	2014-11-20
JP2004001075A	2004-01-08
KR20130124729A	2013-11-15
KR970033384A	1997-07-22

Other References: