Aluminum-based composite material multi-direction double-level deformation restraining device and application method thereof

Abstract

The invention discloses an aluminum-based composite material multi-direction double-level deformation restraining device and an application method thereof, particularly relates to an aluminum-based composite material multi-direction double-level deformation restraining device and an application method thereof, and aims at solving the problem that according to a traditional aluminum-based compositematerial extrusion forming method, material diameter-direction size increasing is hard to achieve. The aluminum-based composite material multi-direction double-level deformation restraining device iscomposed of a lower pressing head, an upper pressing head and an annular restraint die. The method comprises the steps that firstly, a cylindrical blank and a cylinder annular wrapping sleeve material which are the same in height are prepared and are in interference fit, and blank preparing is finished; secondly, preheating is conducted, the blank, the upper pressing head, the lower pressing head, a heat preservation bottom plate and the annular restraint die are preheated to the assigned temperature; thirdly, the heat preservation bottom plate, the lower pressing head, the blank and the upper pressing head are placed on a press machine platform; fourthly, the press machine is controlled, and the blank is compressed and deformed; and fifthly, heat treatment is conducted. According to thealuminum-based composite material multi-direction double-level deformation restraining device and the application method thereof, after multi-direction double-level deformation restraining, the comprehensive performance of a composite material can be effectively improved, and the composite material radial size is increased by 15%-25%. The aluminum-based composite material multi-direction double-level deformation restraining device and the application method thereof are used in the aerospace industry.

Description

technical field [0001] The invention specifically relates to an aluminum-based composite material multi-directional two-stage constrained deformation device and a method for using the same. Background technique [0002] Aluminum-based composites combine the advantages of both the aluminum alloy matrix and the reinforcement, and possess high specific strength, high specific stiffness, and excellent physical properties. The important position, especially in the field of aerospace, puts forward higher requirements for lightweight, so it also further improves the quality requirements for aluminum matrix composites. [0003] Extrusion deformation is usually the main way of secondary molding of aluminum matrix composite materials at present. Through extrusion process, aluminum matrix composite materials undergo strong plastic deformation, improve the density of composite materials, and finally obtain aluminum matrix composite materials with excellent performance. However, the ext...

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Problems solved by technology

[0006] The present invention aims to solve the problem that the traditional extrusion molding method of aluminum-based composite materials is difficult to increase the size of the material in the diameter direction, and provides a multi-directional two-stage constrained deformation device for aluminum-based composite materials and its use method

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