Kobe Steel, Ltd.

Toshisada Kashimura

Makoto Tomita

Syozi Koga

Naoki Okuda

Minoru Oishi

Hisaaki Yokota

A high efficiency arc welding process and apparatus wherein an arc is generated between an electrode and plates to be welded, the welding electrode is oscillated, and the direction of the arc is oscillated by a magnetic force in synchronism with the oscillation of the welding electrode so that the arc is directed to the groove face of each plate to be welded.

High efficiency arc welding process and apparatus

Aluminum and aluminum alloys are welded in a horizontal welding position in which the base metals to be welded are vertically disposed in abutting relationship with the welding groove opened sidewise by oscillating the tip of the welding electrode in the widthwise direction of the abutted base metals and welding the base metals while maintaining the angle formed by the surface of the molten pool and the electrode on the advancing side thereof greater than 90.degree.. The surface of the molten pool as used herein is defined as one which is parallel to the crater surface of the weld which results upon termination of welding by extinction of the welding arc.

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Tokyo, Japan

Toshisada Kashimura