Honda Motor Co., Ltd.

Kazuyoshi Doira

Noboru Hayashi

Masaaki Fujimoto

Takayuki Yamada

Mitsuhiko Ueki

Kouji Furudate

Takuji Ishimoto

There is provided a method for joining an iron member and an aluminum member, the iron member including a plated layer at least on a joining side with the aluminum member; the aluminum member formed of an aluminum cladding material including an aluminum core material mainly formed of aluminum and an aluminum alloy layer with a melting point lower than that of the aluminum core material, cladded on a joining side with the iron member; the method including a step of stacking the iron member and the aluminum member, and a step of joining the iron member and the aluminum member.

Method for joining iron member and aluminum member and iron-aluminum joined body

An aluminum roof outer panel () is spot welded to a roof side rail () consisting of galvanized steel sheet. The outer panel () of the roof side rail is made of galvannealed steel sheet that has a favorable property but cannot be favorably welded to the aluminum roof outer panel, but the inner panel () of the roof side rail is made of non-galvannealed steel sheet that can be favorably welded to the aluminum roof outer panel. Flanges of the outer panel () and inner panel () overlap each other, and the flange of the outer panel is provided with a plurality of notches () along an edge of the outer panel. A corresponding flange of the roof outer panel is welded to the parts of the inner panel exposed by the notches of the outer panel.

Welding arrangement for vehicle body panels

Growing community of inventors

Saitama, Japan

Kazuyoshi Doira