Metal member, metal-resin joined body, and method for manufacturing metal-resin joined body

Abstract

A metal-resin joined body having a high joining strength is obtained. The metal-resin joined body of the invention is a metal-resin joined body 10 including a metal member 30 made of a metal and a resin member 20 made of a thermoplastic resin, in which a resin joint surface 22 of the resin member 20 is joined to a metal joint surface 32 of the metal member 30. The metal member 30 includes an anchor portion 34 protruding from the metal joint surface 32. The anchor portion 34 includes an aggregate 38 of a plurality of metal particles 36, and a plurality of voids 40 formed between the plurality of metal particles 36. The plurality of voids 40 are connected inside the anchor portion 34 and are connected from a surface of the anchor portion 34 to the inside of the anchor portion 34.

Dependencies are inferred from the claim text.