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Manufacturing method of magnesium-aluminum metal composite structure

A metal composite structure and manufacturing method technology, applied in metal rolling, manufacturing tools, metal processing equipment, etc., can solve the problems of insufficient plastic forming ability at room temperature, poor corrosion resistance of magnesium alloys, etc., and achieve good internal interface bonding, corrosion resistance Good corrosion performance and complex shape

Pending Publication Date: 2022-06-28
AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The embodiment of the present invention provides a method for manufacturing a magnesium-aluminum metal composite structure, which solves the technical problems of poor corrosion resistance of magnesium alloys and insufficient plastic forming ability at room temperature

Method used

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  • Manufacturing method of magnesium-aluminum metal composite structure
  • Manufacturing method of magnesium-aluminum metal composite structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] 1. A fine-grained magnesium alloy sheet is prepared by the cumulative stack rolling method. The grain size of the magnesium alloy sheet is 2 μm and the thickness is 1 mm.

[0059] 2. Place the magnesium alloy plate on the ultrasonic consolidation equipment, and ultrasonically consolidate a layer of 1100 aluminum foil on one side. The thickness of the aluminum foil is 100 μm, the ultrasonic consolidation speed is 10 mm / s, the pressure is 500 kgf, and the amplitude is 10 μm.

[0060] 3. On the other side of the magnesium alloy plate, repeat the above process to ultrasonically consolidate a layer of aluminum foil or aluminum alloy foil to prepare a magnesium-aluminum metal composite plate.

[0061] 4. Load the forming mold into the superplastic forming machine, and heat it up to 350°C with the furnace at a heating rate of 1°C / min.

[0062] 5. Turn on the superplastic forming machine, put the magnesium-aluminum metal composite plate between the upper and lower molds of the ...

Embodiment 2

[0066] 1. A fine-grained magnesium alloy plate was prepared by friction stir welding. The grain size of the magnesium alloy was 5 μm and the thickness was 4 mm.

[0067] 2. Place the magnesium alloy sheet on the ultrasonic consolidation equipment, and ultrasonically consolidate a layer of 2024 aluminum alloy foil or aluminum foil on one side. The thickness of the aluminum foil or aluminum alloy foil is 300 μm, and the ultrasonic consolidation speed is 80 mm / s. Pressure 1500kgf, amplitude 40μm.

[0068] 3. On the other side of the magnesium alloy plate, repeat the above process to ultrasonically consolidate a layer of aluminum foil or aluminum alloy foil to prepare a magnesium-aluminum metal composite plate.

[0069] 4. Load the forming mold into the superplastic forming machine, and heat up to 450°C with the furnace at a heating rate of 1°C / min.

[0070] 5. Turn on the superplastic forming machine, put the magnesium-aluminum metal composite plate into the upper mold and the l...

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Abstract

The invention relates to a manufacturing method of a magnesium-aluminum metal composite structure. The manufacturing method comprises the steps that S1, a magnesium alloy plate is provided; s2, aluminum foils are subjected to ultrasonic consolidation on the upper surface and the lower surface of the magnesium alloy plate correspondingly, a magnesium-aluminum metal composite plate is obtained, and under the combined action of vertical loads and ultrasonic vibration, the aluminum foils and the magnesium alloy plate are compounded together through short-distance diffusion and mechanical occlusion; and S3, the magnesium-aluminum metal composite plate is subjected to superplastic gas bulging forming, the magnesium-aluminum metal composite structure is obtained, an interface reaction layer is formed between the aluminum foil and the magnesium alloy plate, and metallurgical bonding is achieved. The aluminum foil has good corrosion resistance, so that the prepared magnesium-aluminum metal composite structure also has good corrosion resistance.

Description

technical field [0001] The invention relates to the field of metal plate manufacturing, in particular to a manufacturing method of a magnesium-aluminum metal composite structure. Background technique [0002] Magnesium and its alloys have light weight, high specific strength, specific stiffness, good damping performance and electromagnetic shielding performance, and have been widely used in aviation, aerospace and weapons, especially in the fields with high requirements for lightweight. Alloy materials are more favored. However, the poor corrosion resistance and insufficient plastic forming ability of magnesium alloys limit its further application and promotion. [0003] At present, the structure of magnesium-aluminum metal clad plate is mainly flat plate structure, and the preparation methods include: rolling composite method, diffusion welding method and explosion welding method. The rolling cladding method is a method of cladding two metal sheets with clean surfaces thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D26/06B21D26/021B23K20/10B21B1/38B23K20/12
CPCB21D26/06B21D26/021B23K20/10B21B1/38B23K20/12
Inventor 王耀奇姜波陈福龙查苏娜韩玉杰侯红亮
Owner AVIC BEIJING AERONAUTICAL MFG TECH RES INST
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