WELDED MEMBER AND MANUFACTURING METHOD THEREOF

Title:

WELDED MEMBER AND MANUFACTURING METHOD THEREOF

Document Type and Number:

WIPO Patent Application WO/2021/039042

Kind Code:

A1

Abstract:

A technique is provided which, regardless of the type of shielding gas, can reduce spatter from arc welding on a welded member that is manufactured by arc welding hot-dip galvanized steel sheets. The hot-dip galvanized steel sheets are arc welded while advancing and retracting a welding wire (10), as appropriate, with respect to the welded part, which is formed by contact between said galvanized steel sheets having a prescribed coating weight. During the short-circuiting period, the welding wire (10) is pulled up to a position at which the distance D between the welded part and the tip of the welding wire (10) satisfies a prescribed range corresponding to the diameter R of the welding wire (10).

Inventors:

SAKAKI MASAHITO (JP)
MATSUHISA NAOTO (JP)
TOMIMURA KOUKI (JP)

Application Number:

PCT/JP2020/023668

Publication Date:

March 04, 2021

Filing Date:

June 17, 2020

Export Citation:

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Assignee:

NIPPON STEEL CORP (JP)

International Classes:

B23K9/073; B23K9/12; B23K9/16; B23K9/23

Domestic Patent References:

WO2018159038A1	2018-09-07
WO2011004586A1	2011-01-13

Foreign References:

JPS5934890B2	1984-08-25
JPH1119769A	1999-01-26