Joint structure for fiber reinforced resin and metal, and joining method for fiber reinforced resin and metal

摘要

There is provided a joint structure for a fiber reinforced resin and a metal. In the structure, multiple single elements are laminated such that the step-shaped structures are superposed in a thickness direction. Each element is constituted by a metallic material including a step-shaped structure having an end portion that gradually becomes thinner towards an end surface thereof so as to form a step-shaped joint surface, and a fiber reinforced plastic laminated such that an end portion thereof covers the step-shaped structure smoothly. A main welding portion is formed on an outer end of the metallic material by welding mating surfaces of adjacent metallic materials. A secondary welding portion is formed on the plastic side of the main welding portion on all the metallic materials by welding them in the thickness direction.

主权项

1. A joint structure for a fiber reinforced resin and a metal, in which end portions of a fiber reinforced plastic and a metallic material are joined via a step-shaped joint surface,
wherein a plurality of single elements, each constituted by the metallic material, which includes a step-shaped structure having an end portion that gradually becomes thinner in a direction of an end surface of the end portion so as to form the step-shaped joint surface, and the fiber reinforced plastic, which is laminated such that an end portion thereof covers the step-shaped structure smoothly, are laminated such that the step-shaped structures are superposed in a thickness direction, the metallic material and the fiber reinforced plastic are adhered to each other, and adjacent elements are joined to each other by superposed surfaces thereof, a main welding portion is formed on an outer end of the metallic material by welding mating surfaces of adjacent metallic materials, and a secondary welding portion is formed on the fiber reinforced plastic side of the main welding portion on all of the metallic materials of the plurality of laminated elements by welding all of the metallic materials in the thickness direction.