Abstract: Provided is a method of manufacturing a joined member by joining a first metal member and a second metal member, the method including: melting an end portion on a joining side of the first metal member, while the first metal member is disposed adjacent to at least a portion of the second metal member, by irradiating the heat source while scanning, the heat source irradiated to the end portion on the joining side of the first metal member has a central portion and a peripheral portion located at a periphery of the central portion and having energy intensity lower than that of the central portion, and in the peripheral portion, a length in a scanning direction of the heat source is longer than a length in a direction perpendicular or substantially perpendicular to the scanning direction of the heat source.

Abstract: A joined member is provided which includes: a first metal member, a second metal member opposed to the first metal member, and a joining portion through which the first metal member and the second metal member are joined together, in which an end face in a width direction of the first metal member is in contact with the joining portion, a portion of a surface of the second metal member on a side opposed to the first metal member is in contact with the joining portion, and a region of the surface of the second metal member on a side opposed to the first metal member which is not in contact with the joining portion is covered with zinc, and in the joining portion, zinc concentration in at least one end portion in the width direction is higher than zinc concentration in the center portion in the width direction.

Abstract: A bonding structure includes a flange bonding portion formed by bonding flanges of a front pillar inner member made of iron and of a front pillar stiffener made of iron to each other, and a dissimilar material bonding portion formed by bonding the front pillar stiffener to a front pillar outer member being an aluminum external plate. The dissimilar material bonding portion is disposed at an adjacent wall located away from the flange bonding portion of the front pillar stiffener and the front pillar inner member.