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Molding method for high-strength high-modulus aluminum based composite material

A technology of aluminum-based composite materials and forming methods, which is applied in the field of material processing, can solve problems such as being unsuitable for forming high-strength and high-modulus aluminum-based composite materials, and achieve low residual stress levels of components, stable forming quality, and high accuracy. Effect

Inactive Publication Date: 2009-05-13
苏州有色金属研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is simple in process, but it is not suitable for fo

Method used

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  • Molding method for high-strength high-modulus aluminum based composite material
  • Molding method for high-strength high-modulus aluminum based composite material
  • Molding method for high-strength high-modulus aluminum based composite material

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Experimental program
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Effect test

Embodiment 1

[0028] The composition mass percentage of aluminum matrix composite material is Zn 8.0wt%, Mg 2.3wt%, Cu 2.3wt%, Zr 0.15wt%, Mn≤0.05wt%, Cr≤0.04wt%, TiB 2 10wt%, the balance is Al.

[0029] Process: First, the aluminum matrix composite material plate is subjected to solution treatment at 460°C / 2h, quenched, and the mold and the actual required parts are designed with an additional 5% deformation to compensate for the springback of the aluminum matrix composite material after unloading. A high-temperature rubber gasket is provided at the junction of the aluminum-based composite material plate, and high-vacuum sealing grease is applied to vacuumize the cavity between the aluminum-based composite material plate and the molding surface of the mold to 1×10 -9 MPa, put the aluminum-based composite material plate and the mold in the autoclave, the pressure of 200 MPa generated by the autoclave device, the pressure evenly acts on the surface of the aluminum-based composite material p...

Embodiment 2

[0031] The composition mass percentage of aluminum matrix composite material is Zn 8.0wt%, Mg 2.3wt%, Cu 2.3wt%, Zr 0.15wt%, Mn≤0.05wt%, Cr≤0.04wt%, TiB 2 10wt%, the balance is Al.

[0032] Process: First, the aluminum matrix composite material plate is subjected to solution treatment at 550°C / 15min, quenched, and the mold and the actual required parts are designed with an additional 1% deformation to compensate for the springback of the aluminum matrix composite material after unloading. A high-temperature rubber gasket is provided at the junction of the aluminum-based composite material plate, and high-vacuum sealing grease is applied to vacuumize the cavity between the aluminum-based composite material plate and the molding surface of the mold to 1×10 -7 MPa, put the aluminum-based composite material plate and the mold in the autoclave, the pressure of 150MPa generated by the autoclave device, the pressure evenly acts on the surface of the aluminum-based composite material...

Embodiment 3

[0034] The composition mass percentage of aluminum matrix composite material is Zn 8.0wt%, Mg 2.3wt%, Cu 2.3wt%, Zr 0.15wt%, Mn≤0.05wt%, Cr≤0.04wt%, TiB 2 10wt%, the balance is Al.

[0035] Process: First, the aluminum matrix composite material plate is subjected to solution treatment at 450°C / 5h, quenched, and the mold and the actual required parts are designed with an additional 20% deformation to compensate for the springback of the aluminum matrix composite material after unloading. A high-temperature rubber gasket is provided at the junction of the aluminum-based composite material plate, and a high-vacuum sealing grease is applied to vacuumize the cavity between the aluminum-based composite material plate and the molding surface of the mold to 1×10 -12MPa, put the aluminum-based composite material plate and the mold in the autoclave, the pressure of 500 MPa generated by the autoclave device, the pressure evenly acts on the surface of the aluminum-based composite materia...

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Abstract

The invention relates to a method for molding a high-strength high-modulus aluminum base composite material. The process comprises the following steps: firstly, performing solution treatment and quenching on an aluminum base composite material board at a temperature of between 450 and 550 DEG C; placing the aluminum base composite material board on a mold and sealing the joint part of the aluminum base composite material board and the mold; vacuumizing a molding surface cavity of the aluminum base composite material board and the mold until the pressure is between 1 x 10<-7> and 1 x 10<-12> MPa; placing the board and the mold into an autoclave and generating the pressure of between 150 and 500 MPa to act on the surface of the aluminum base composite material board; then raising the temperature to between 20 and 300 DEG C and aging for 5 to 50 hours; and after the aging, reducing the temperature to between 15 and 50 DEG C, and unloading the pressure to normal pressure; and generating rebounding on the components due to the residual elastic deformation and restoration to obtain parts of corresponding shapes. The method can greatly reduce the probability of the occurrence of processing cracks of the aluminum base composite material, improve microstructures, improve the material strength, and is suitable for the precise molding of frame rib web plate and wall-board parts which are made of the high-strength high-modulus aluminum base composite material and have large plane size, complex molding surface structure and high accuracy.

Description

technical field [0001] The invention relates to a forming method of a metal-based composite material, in particular to a forming method of a high-strength and high-modulus aluminum-based composite material, and belongs to the technical field of material processing. Background technique [0002] Aluminum-based composite materials have the advantages of light weight, high specific strength, high specific stiffness and shear strength, low thermal expansion coefficient, good thermal stability, thermal conductivity, electrical conductivity, and corrosion resistance, and have gradually become ideal materials in the fields of aviation and aerospace. The application prospect is broad. [0003] Chinese patent 200710005629.5 discloses a molding method for composite materials, which is to place the fiber layer in the cavity of the mould, cover the fiber layer with an elastic mold and an isolation film, and then draw the space between the bottom of the isolation film and the cavity of t...

Claims

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Application Information

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IPC IPC(8): C22F1/04
Inventor 张建平毛建伟乐永康
Owner 苏州有色金属研究院有限公司
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