Joint structure of dissimilar metal materials and method for joining dissimilar metal materials

Abstract

A dissimilar metal joint structure includes a first and second joining materials and a three-dimensional structural body. The structural body is joined to the top of the first joining material. Spaces in the structural body are filled with the second joining material, so that the second joining material is geometrically integrated with the structural body. The structural body is joined to the first joining material at an interface. The second joining material is charged into the spaces in the structural body and is integrated with the structural body. The first and second joining materials are joined together via the structural body. Because the second joining material is charged into the spaces in the structural body, the second joining material and the structural body are strongly joined and integrated together by the anchor effect. Inducing metallurgical reaction at the interface between the first and second joining materials can increase bonding strength.

Dependencies are inferred from the claim text.