Manufacturing method for composite metal, and composite metal structure

Abstract

The invention discloses a manufacturing method for composite metal, and a composite metal structure. The composite metal structure comprises a first metallic body and a second metallic body, wherein the first metallic body has a surface, and a plurality of convex bodies and a plurality of concave bodies are formed in the surface; the plurality of concave bodies are located among the convex bodies; each of the convex bodies are separately provided with a recessed groove which has a root width and a top width, and the root width is greater than the top width; the hardness of the second metallic body is less than the hardness of the first metallic body; and the second metallic body is in compression joint with the surface of the first metallic body and is embedded into the convex bodies, the concave bodies and the recessed grooves. Thus, the bonding firmness of the two metallic bodies is improved, a process is simplified and manufacturing time is shortened.

Description

technical field [0001] The invention relates to a joining technology of composite materials, in particular to a composite metal and a manufacturing method thereof. Background technique [0002] With the continuous progress and development of science and technology, the application of composite materials in various products has become increasingly common, such as casings and mechanism accessories of mobile phones, tablet computers, notebook computers, etc.; fan blades, automobile and motorcycle parts, medical equipment , home appliance shells or spare parts, helmets; automobile and motorcycle exterior panels and internal structural accessories, aircraft internal and external accessories, propellers, general hull structural parts, military helmets, bulletproof parts, sanitary equipment, building materials, etc. The list goes on and on. The finished products produced not only have many advantages such as light weight, thin profile, and good appearance and texture, but also can ...

AI Technical Summary

Problems solved by technology

[0004] However, the problem with clad metal plates is that the combination of layers using explosive welding requires a lot of energy, which is highly dangerous and difficult to achieve mass production. Improve production yield

In addition, the base layer and the outer layer are only bonded by solder, and if it is applied in a field subject to shear force, it is very easy to cause the base layer and the outer layer to slip and detach.

Furthermore, it uses solder to join by explosive welding, which is not suitable for some specific metals (such as magnesium or magnesium alloys), and needs to be improved urgently.

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