Patent ID: 6386427
Filing Date: 2002-05-14
Classification: B23K,Y10T

Abstract:
A one-side welding method in a steel structure, said method comprising the steps of:placing a backing material, which is not melted by a welding heat source, to an end face of a T-welding joint member, or one end face of butt welding members where two members are in substantially the same plane or both end faces; performing overlay welding between a back face of the end of the member and said backing material; providing edge preparation to the end of the member including said overlay weld metal; and welding the joint members to each other after being opposed to other as melting a groove face consisting of the overlay weld metal and the members from a front side of the groove, whereby ensuring a welding throat depth in the direction of a plate thickness exceeding a plate thickness of the end of the member of the welding joint.