High-temperature and high-pressure preparation method of continuous carbon fiber reinforced aluminum base composite material powder

Abstract

The invention provides a high-temperature and high-pressure preparation method of continuous carbon fiber reinforced aluminum base composite material powder, which comprises the following steps: preparing a can, a carbon fiber preform and spherical aluminum alloy powder; putting the carbon fiber preform into the can; vacuumizing the can; performing hot isostatic pressing treatment on the vacuumized can; mechanically removing the can; and mechanically cutting to obtain the carbon fiber reinforced aluminum base composite material having an appropriate thickness, etc. According to the high-temperature and high-pressure preparation method of continuous carbon fiber reinforced aluminum base composite material powder, the aluminum alloy powder is consolidated and densified through hot isostatic pressing technology and is closely combined with the carbon fiber material, thus overcoming the defects of the traditional preparation method, such as strict requirements for molds and equipment, high formation temperature, high pressure and the like; the compounding and formation of a metal matrix and a reinforcement can be completed simultaneously; and the prepared composite material is uniform and compact in structure, has no shrinkage cavities, gas pockets or other defects, and has uniform performance.

Description

technical field [0001] The invention belongs to the technical field of aerospace manufacturing, in particular to a high-temperature and high-pressure preparation method of continuous carbon fiber reinforced aluminum-based composite material powder. Background technique [0002] In order to comply with the development of my country's aerospace industry and meet the high-performance requirements of my country's fighter jets, materials are required to have various special properties or excellent comprehensive properties. Due to its high specific strength, specific stiffness, axial tensile properties and wear resistance, carbon fiber reinforced aluminum matrix composites can replace expensive and dense alloy materials in the aerospace industry, and become the main type of composite materials. [0003] The traditional preparation methods of fiber-reinforced metal matrix composites include solid phase composite forming methods, mainly hot pressing method, diffusion bonding method,...

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Problems solved by technology

[0006] However, at present, there are few reports on the application of hot isostatic pressing technology to the preparation of continuous carbon fiber reinforced aluminum matrix composites, especially in combination with the advantages of powder metallurgy, there is no relatively complete process for the preparation of continuous carbon fiber reinforced aluminum matrix composites

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