Metal and plastic or metal and metal combined material and manufacturing method thereof

The invention discloses a metal and plastic or metal and metal combined material and a manufacturing method thereof.The manufacturing method comprises the following steps that (1) metal A is manufactured through the 3D printing technology, and the metal A is composed of a completely-sintered part and a semi-sintered part, the semi-sintered part of the metal A is of one or more of a porous structure, a lattice structure, a lattice structure and a concave-convex texture structure; and (2) the to-be-combined part of the material B is aligned with the semi-sintered part of the metal A, and then the to-be-combined part of the material B is made to permeate into the semi-sintered part of the metal A, so that combination of the metal A and the material B is completed, the combined material is obtained, and the material B is plastic or metal. The bonding strength of metal and plastic or metal can be effectively guaranteed, and the weight of the bonding material is reduced. 本发明公开了一种金属与塑料或金属与金属的结合材料及其制作方法，其制作方法包括以下步骤：（