Metal-matrix diamond composite material and 3D (three dimensional) printing manufacturing method of parts of metal based diamond composite material

A composite material, 3D printing technology, applied in the field of manufacturing, can solve the problems of low work efficiency, high power consumption, difficult loading, etc., to achieve stable and excellent mechanical properties, shorten the manufacturing cycle, and fast cooling effect.

Inactive Publication Date: 2017-06-13
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metal-based diamond composite material developed by conventional methods is a "pseudo-alloy" material, and its diamond wrapping is mainly mechanical wrapping, and the firmness of the wrapping is low, which affects the quality of the composite material.
Secondly, in order to obtain metal-based diamond composites with high hardness and high wear resistance in conventional methods, artificial hard materials such as tungsten carbide must be used with a relatively h...

Method used

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  • Metal-matrix diamond composite material and 3D (three dimensional) printing manufacturing method of parts of metal based diamond composite material

Examples

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Comparison scheme
Effect test

Embodiment 1

[0030] The embodiment of the present invention provides a metal-based diamond composite material, which is made of raw materials in the following volume ratio: 2% diamond, and the rest is metal powder;

[0031] The metal powder is spherical or nearly spherical, and the particle size of the metal powder is 15 μm to 65 μm. The grade of the diamond is in the SMD 30 type or above, the particle size of the diamond is 80 mesh to 100 mesh. The metal powder is a mixture of FMA-201 iron-nickel-cobalt pre-alloy powder and copper-tin pre-alloy powder.

[0032] Please refer to figure 1 , a 3D printing manufacturing method of a metal-based diamond composite material and parts thereof, comprising the following steps:

[0033] (1) The metal powder and diamond are mixed evenly in argon by a ball mill according to the above volume ratio, which is conducive to improving the degree of dispersion of diamond in the metal powder in the subsequent forming process;

[0034] (2) Establish the three...

Embodiment 2

[0039] The embodiment of the present invention provides a metal-based diamond composite material, which is made of raw materials with the following volume ratio: diamond 16%, and the rest is metal powder;

[0040] The metal powder is spherical or nearly spherical, and the particle size of the metal powder is 20 μm to 65 μm. The grade of the diamond is in the SMD 30 type or above, the particle size of the diamond is 70 mesh to 80 mesh. The metal powder is a mixed powder of FMA-201 iron-nickel-cobalt pre-alloy powder and copper-tin pre-alloy powder.

[0041] Please refer to figure 1 , a 3D printing manufacturing method of a metal-based diamond composite material and parts thereof, comprising the following steps:

[0042] (1) The metal powder and diamond are mixed uniformly by a ball mill in argon according to the above volume ratio, which is conducive to improving the degree of dispersion of diamond in the metal powder during the subsequent forming process;

[0043] (2) Estab...

Embodiment 3

[0048] The embodiment of the present invention provides a metal-based diamond composite material, which is made of raw materials in the following volume ratio: diamond 30%, and the rest is metal powder;

[0049] The metal powder is spherical or nearly spherical, and the particle size of the metal powder is 20 μm to 65 μm. The grade of the diamond is in the SMD 30 type or above, the particle size of the diamond is 40 mesh to 50 mesh. The metal powder is a mixed powder of FMA-201 iron-cobalt-nickel pre-alloy powder and copper-tin pre-alloy powder.

[0050] Please refer to figure 1 , a 3D printing manufacturing method of a metal-based diamond composite material and parts thereof, comprising the following steps:

[0051] (1) The metal powder and the diamond are uniformly mixed by the ball mill in the argon gas according to the above-mentioned volume ratio, which is beneficial to improve the dispersion degree of the diamond in the metal powder during the subsequent forming proces...

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Abstract

The invention discloses a metal-matrix diamond composite material and a 3D (three dimensional) printing manufacturing method of parts of the metal-matrix diamond composite material. The composite material is made from, by weight, 2%-3% of diamond and the balance of metal powder; the metal powder is 15umm-65umm in grain size; the grade of the diamond is above SMD 30, and the diamond is 35-18 meshes in particle size; the diamond is evenly mixed with metal matrix powder prior to being put in a feeding device of a melting unit in a selective laser region to perform three-dimensional printing to form the parts on a substrate; the parts are subjected to stress-relieving annealing treatment after formation is completed, microcrack healing is promoted, structure defect is removed, and the performance is controlled. By the arrangement, metal matrix alloying can be realized, the diamond is effectively embedded, the metal-matrix diamond composite material with ideal hardness and abrasion performance is obtained, and the metal-matrix diamond composite material parts with the complex structure are manufactured.

Description

technical field [0001] The invention relates to the field of manufacturing technology, in particular to a 3D printing manufacturing method of a metal-based diamond composite material and parts thereof. Background technique [0002] Metal matrix composites have been developed for decades. Due to their combination of plasticity and toughness of metals, high strength and high stiffness of reinforced ceramics, and small specific gravity, they are widely used in prospecting, machinery, aerospace, etc. field. Due to its high thermal conductivity, high Young's modulus, low linear expansion coefficient, and outstanding specific modulus, diamond can be added to the metal substrate as a reinforcement, which can significantly improve the hardness, wear resistance, and heat resistance of the substrate. Conductivity, reduce the thermal expansion coefficient of the substrate, has a wide range of application prospects in the metal structure and functional materials. [0003] At present, ...

Claims

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Application Information

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IPC IPC(8): B22F3/105B22F3/24C22C26/00B22F1/00B33Y10/00B33Y70/00
CPCB22F1/0003C22C26/00B22F3/24B33Y10/00B33Y70/00B22F2003/248B22F2003/247B22F10/00B22F10/36B22F10/32B22F10/66B22F10/366B22F10/28B22F10/64Y02P10/25
Inventor 杨展季宪泰周燕段隆臣文世峰谭松成
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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