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A light metal matrix composite material part and its preparation method

A composite material and light metal technology, applied in the direction of additive manufacturing, additive processing, etc., can solve the problems of low material utilization rate and complicated process, and achieve the effect of improving utilization rate, simplifying operation process and reducing material waste

Active Publication Date: 2022-04-01
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the above-mentioned problems existing in the prior art, the present invention provides a light metal matrix composite material part and its preparation method, which can effectively solve the problems of complex process and low material utilization rate in the existing preparation method

Method used

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  • A light metal matrix composite material part and its preparation method

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Embodiment 1

[0027] A method for preparing a light metal matrix composite material part. The specific operations are: grinding the surface of a magnesium-based substrate to be deposited, removing oil stains on the surface of the magnesium-based substrate, and then air-drying; adding ethanol to the SiC reinforcement, and performing ultrasonic treatment. The processing power is 250W, the frequency is 40khz, and the processing time is 30min. The SiC reinforcement is made into a paste to obtain the SiC reinforcement paste, and then the SiC reinforcement paste is smeared and deposited on the surface of the magnesium-based substrate according to the designed path to form a SiC reinforcement. layer, where the coating amount of SiC reinforcement is 5mg / cm 2 , and then press the magnesium-based strip with a thickness of 0.5mm and a width of 3mm on the SiC reinforcement layer to form a magnesium-based strip layer according to the same path, repeat the above operation to form a laminate with a thickne...

Embodiment 2

[0029] A preparation method of a light metal matrix composite material part, the specific operations are: grinding the surface of the metal matrix to be deposited, removing the oil stain on the surface of the matrix, and then air-drying; adding ethanol to the ZrO2 reinforcement, and performing ultrasonic treatment, the ultrasonic treatment power is 250W, the frequency is 40khz, the processing time is 30min, the ZrO 2 The reinforcement is adjusted into a paste to obtain ZrO 2 Enhanced body paste, then ZrO 2 The reinforcement paste is smeared and deposited on the surface of the magnesium-based substrate according to the designed path to form ZrO 2 Reinforcement layer, where ZrO 2 The coating amount of reinforcement is 45mg / cm 2 , and then press the magnesium-based strip with a thickness of 2mm and a width of 8mm on the ZrO 2 A magnesium-based strip layer is formed on the strong body layer, and the above operations are repeated to form a laminate with a thickness of 5mm. Fina...

Embodiment 3

[0031] A preparation method of a light metal matrix composite material part, the specific operation is: grinding the surface of the metal matrix to be deposited, removing the oil stain on the surface of the matrix, and then air drying; adding acetone to the diamond reinforcement, and performing ultrasonic treatment, the ultrasonic treatment power is 250W, the frequency is 40khz, the processing time is 30min, the diamond reinforcement is adjusted into a paste, and the diamond reinforcement paste is obtained, and then the diamond reinforcement paste is smeared and deposited on the surface of the magnesium-based substrate according to the designed path to form a diamond reinforcement layer. The coating amount of diamond reinforcement is 30mg / cm 2, and then press the magnesium-based strip with a thickness of 1mm and a width of 5mm on the diamond reinforcement layer to form a magnesium-based strip layer according to the same path. The arc melts the formed laminations to form a molt...

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Abstract

The invention provides a light metal matrix composite material part and a preparation method thereof. The preparation method is as follows: the reinforcement is made into a paste to obtain a reinforcement paste, and then the reinforcement paste is deposited on the surface of the light metal matrix according to the designed path to form a reinforcement body layer, and then press the metal strip on the reinforcement layer in the same way to form a metal strip layer, repeat the above operations to form a laminate, and finally use arc heat to melt the formed laminate to form a molten pool, cool and solidify, and obtain , wherein the coating amount of the reinforcement layer is 5‑50mg / cm 2 . The preparation method can effectively solve the problems of complicated process and low material utilization rate existing in the existing preparation method.

Description

technical field [0001] The invention belongs to the technical field of manufacturing light metal-based composite materials, and in particular relates to a light metal-based composite material component and a preparation method thereof. Background technique [0002] Magnesium alloy and aluminum alloy light metal materials have the advantages of low density, high specific strength, and high specific stiffness. They are widely used in the manufacturing industry and gradually become the most promising light non-ferrous metal materials. In recent years, with the rapid development of aerospace and other industrial technologies, the requirements for light metal high-performance bulk composite materials are getting higher and higher. The use of composite strengthening is an effective way to improve the comprehensive performance of magnesium and aluminum alloys. By adding fibers, whiskers or particles with high strength, high elastic modulus and high melting point to magnesium alloy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F10/20B33Y10/00
CPCB33Y10/00
Inventor 尹冬弟万有富郭阳阳江志伟
Owner SOUTHWEST JIAOTONG UNIV
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