ARC WELDING METHOD FOR JOINING DISSIMILAR MATERIALS, JOINING ASSIST MEMBER, DISSIMILAR MATERIAL WELDED JOINT, AND PLATE MATERIAL EQUIPPED WITH JOINING ASSIST MEMBER

WIPO Patent Application WO/2020/084971

A1

Provided is an arc welding method for joining dissimilar materials, including steel to an aluminum alloy or to a magnesium alloy, that allows dissimilar materials to be strongly and highly reliably joined to one another using inexpensive arc welding equipment. The dissimilar material welded joint (1) includes an aluminum alloy or a magnesium alloy top plate (10), a steel bottom plate (20) that has been arc welded to the top plate (10), and a steel joining assist member (30). The top plate (10) has a circular hole (11) facing the overlapping surface of the bottom plate (20). The joining assist member (30) has a stepped outer shape including an axial portion (31) and a flange portion (32), and has a hollow portion (33) formed therein that traverses the axial portion (31) and the flange portion (32), and the outer peripheral surface of the axial portion (31) is provided with at least one protruding portion (39) for press-fitting. The joining assist member (30) is press-fitted into the hole (11) of the top plate (10), and the hollow portion (33) is filled with an iron alloy or an Ni alloy welding metal (40).

SUZUKI REIICHI

PCT/JP2019/036831

April 30, 2020

September 19, 2019

Click for automatic bibliography generation  

KOBE STEEL LTD (JP)

B23K9/23; B23K9/007; B23K9/14; B23K9/167; B23K9/173; B23K10/02

WO2018123716A1

2018-07-05

JPS647911U	1989-01-17
JP2001132718A	2001-05-18
JP2010096351A	2010-04-30
JP2019150831A	2019-09-12

EIKOH PATENT FIRM, P.C. (JP)

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