To provide a lap joint which consists of different kinds of metallic materials and has high bond strength, and whose end part has corrosion resistance, and to provide a manufacturing method for the lap joint.
In a lap bonded joint consisting of different kinds of metallic materials, where a lapping material 3 is lapped over a base material 4, the bonded part of the joint consists of a part 6 formed by a friction stir welding method and a part 8 formed around the part 6 by a brazing method. Extending the brazed part to the end part of the lapping material is, in particular, more effective, and making the joint by lapping titanium over a steel material is effective. The joint is manufactured by inserting a brazing agent into the whole part or one part of the interface between the base material and the lapping material, friction stir bonding them, and simultaneously brazing them using the heat generated at the time of bonding.