Interface interlocking/rib reinforced laminated armor aluminum alloy and preparation method thereof

Abstract

The invention discloses interface interlocking / rib reinforced laminated armor aluminum alloy and a preparation method thereof. The laminated armor aluminum alloy is formed by extruding, combining and rolling a back plate, a middle plate and a face plate. The laminated armor aluminum alloy is provided with a spatial interface with interlocked components, and a rib structure is arranged in the rolling direction. The preparation method comprises the following steps that 1) cast ingots on the back plate, the middle plate and the face plate are extruded into a prefabricated blanks with a big-end-up cavity, a prefabricated blank with an n-shaped structure and a prefabricated blank with a big-end-up rib structure correspondingly; 2) surface treatment is carried out on the prefabricated blanks; 3) the face plate, the middle plate and the back plate are extruded and combined; (4) the combined blanks are rolled and combined; and 5) solid solution and aging treatment is conducted. The interface bonding strength is increased through interface interlocking between the laminated armor aluminum alloy components, and interlayer cracking can be prevented. The rib structure improves the strength, rigidity and elasticity resistance of the plates. The preparation method is convenient to operate and beneficial to industrial production.

Description

technical field [0001] The invention belongs to the technical field of preparation and processing of metal composite materials, and in particular relates to an "interface interlocking / rib reinforcement" laminated armor aluminum alloy and a preparation method thereof. Background technique [0002] With the development of modern warfare, armored vehicles will suffer all-round and more deadly attacks in future operations, which puts forward new and higher requirements for the protection and survivability of armor materials. Protective materials for armored vehicles are required to have the advantages of good processing performance, light weight, good impact resistance, excellent welding performance, and good corrosion resistance. It is difficult for homogeneous armor to be effective against various anti-armor weapons at the same time. Although increasing the thickness of homogeneous armor can improve its protection ability, it will increase the quality of armored vehicles and r...

AI Technical Summary

Problems solved by technology

The current layered composite armor includes multi-layer aluminum alloy armor, titanium / aluminum multi-layer composite armor, steel / aluminum composite armor, etc. Although layered composite armor has a series of advantages, it has complex manufacturing technology, high cost, and interlayer Poor binding force, easy to crack and other shortcomings, and the laminated aluminum alloy interface prepared by the traditional method is flat, the improvement of the bonding strength between component interfaces is greatly limited, and interlayer cracking is prone to occur

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