G-tekt Corporation

Hiroshi Nishimura

Yasushi Suzuki

Yoshikazu Kitamura

An aluminum plate () is overlaid on a steel plate (). A distal end () of a button component () is pushed in from the obverse surface side of the aluminum plate (), and the distal end () is abutted against the steel plate () by applying a first pressure to the button component () made of steel without heating. The distal end () of the button component () and the steel plate () are welded by resistance spot welding while applying a second pressure lower than the first pressure to the button component ().

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Koka, Japan

Hiroshi Nishimura