Abstract: A joint structure is formed by joining a first plate-shaped member made of steel and a second plate-shaped member made of steel that is overlapped on the first plate-shaped member and that is formed in a long shape. A surface of the first plate-shaped member and both edge portions of the second plate-shaped member along a longitudinal direction are joined by a weld metal.

Abstract: The joined body includes a joint portion including a linear welding portion in which a first metal member and a second metal member are joined. The joint portion includes a main linear portion being linear and extending along a first direction being a direction corresponding to a load assumed to act on a component obtained by machining the joined body. The main linear portion is a portion whose angle formed with the first direction is 0 degrees or more and 15 degrees or less in the joint portion. The joint portion includes a plurality of the main linear portions arranged at intervals in a second direction being a direction intersecting with the first direction.

Abstract: A method for manufacturing a press-molded article includes: preparing a patchwork blank in which a thickened portion is formed by welding patchwork to basework; bending only the thickened portion of the patchwork blank; and bending a portion other than the thickened portion in a step different from bending of the thickened portion.

Abstract: A joint body includes first and second metal members and a joint portion including a welded portion where the first and second metal members are joined together, the welded portion having a line shape. The joint portion includes first and second longitudinal portions and a plurality of connecting portions. The first longitudinal portion has first intersecting portions arranged in a first direction and extends in the first direction. The second longitudinal portion has second intersecting portions arranged in the first direction and extends in the first direction. The welded portion intersects itself at the first and second intersecting portions. The connecting portions are arranged in the first direction. The connecting portions extend in a first direction and connect the first and second longitudinal portions.