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Multiphase nano ceramic particle reinforced Al-based composite material and laser 3D printing forming method thereof

A technology of nano-ceramic particles and composite materials, which is applied in the field of laser 3D printing and forming metal matrix composite materials, which can solve the problems of laser energy loss and health hazards of operators, and achieve the effects of improving mechanical properties, improving performance levels, and avoiding agglomeration

Active Publication Date: 2015-07-01
JIANGSU SILAIMU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The laser irradiation on the object is the same as the visible light, and it also has the property of being absorbed and reflected. After testing, the reflectivity of the aluminum alloy metal surface to the laser is as high as 90%, resulting in the loss of most of the laser energy, and it is harmful to the health of the operator. There is also a certain degree of danger

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Select AlSiMg powder with a composite material matrix of more than 99.9% and a particle size of 15 μm, and the reinforcing phase is Al with a purity of more than 99.9% and a particle size of 10 μm 2 o 3 , SiO 2 , TiN, TiC, ZnO, Y 2 o 3 A complex of powders. The weight percentage of the powder is composed of: AlSiMg 65%, Al 2 o 3 3%, SiO2 2%, TiN 5%, TiC 3%, ZnO 3%, Y 2 o 3 10%.

[0026] (2) The above powders are mixed and synthesized by high-temperature calcination at a synthesis temperature of 300-500°C, and then cooled and pulverized;

[0027] (3) Place the mixed powder in a planetary high-energy ball mill for ball milling, so that the multi-phase ceramic particles after ball milling are distributed in the AlSi10Mg alloy matrix in a nanometer form, and the composite powder is refined at the same time; Argon is used for protection, and the diameter of Ф6mm is added Stainless steel balls are used as the ball milling medium, the mass ratio of balls to powd...

Embodiment 2

[0032] (1) Select AlSiMg powder with a composite material matrix of more than 99.9% and a particle size of 30 μm, and the reinforcing phase is Al with a purity of more than 99.9% and a particle size of 100 μm 2 o 3 , SiO 2 , TiN, TiC, ZnO, Y 2 o 3 A complex of powders. Among them, the powder weight percentage is composed of: AlSiMg75%, Al 2 o 3 15%, SiO2 8%, TiN 10%, TiC6%, ZnO 10%, Y 2 o 3 10%.

[0033] (2) The above powders are mixed and synthesized by high-temperature calcination at a synthesis temperature of 500°C, and then cooled and pulverized;

[0034] (3) Place the mixed powder in a planetary high-energy ball mill for ball milling, so that the multiphase ceramic particles after ball milling are distributed in the AlSi10Mg alloy matrix in nanometer form, and the composite powder is refined at the same time; the argon gas is used for protection, and the added diameter is Ф10 mm Stainless steel balls are used as the ball milling medium, the mass ratio of balls to...

Embodiment 3

[0038] (1) Select AlSiMg powder with a composite material matrix of more than 99.9% and a particle size of 25 μm, and the reinforcing phase is Al with a purity of more than 99.9% and a particle size of 50 μm 2 o 3 , SiO 2 , TiN, TiC, ZnO, Y 2 o 3 A complex of powders. The weight percentage of the powder is composed of: AlSiMg 70%, Al 2 o 3 10%, SiO2 5%, TiN 8%, TiC 4%, ZnO 7%, Y 2 o 3 3%.

[0039] (2) The above powders are mixed and synthesized by high-temperature calcination at a synthesis temperature of 500°C, and then cooled and pulverized;

[0040] (3) Place the mixed powder in a planetary high-energy ball mill for ball milling, so that the multi-phase ceramic particles after ball milling are distributed in the AlSi10Mg alloy matrix in nanometer form, and the composite powder is refined at the same time; the argon gas is used for protection, and the added diameter is Ф8 mm The stainless steel ball is used as the ball milling medium, the mass ratio of the ball to...

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Abstract

The invention discloses a multiphase nano ceramic particle reinforced Al-based composite material and a laser 3D printing forming method thereof. AlSiMg powder with a purity of 99.9% and above and a particle size of 15-30 mu m is selected as a composite material base of the Al-based composite material; a powder composition with a purity of 99.9% or above and a particle size of 10-100 mu m is selected as a reinforced phase of the Al-based composite material, and the powder composition comprises Al2O3, SiO2, TiN and TiC, ZnO and Y2O3; after the two kinds of powder are mixed, the obtained mixture is sequentially subjected to high-temperature calcining synthesis, ball-milling and 3D printing forming, so that a required 3D block can be processed. The Al-based composite material obtained according to the invention has uniformly refined microscopic structures and excellent mechanical properties, and in comparison with the performance levels of traditional casting or powder metallurgy products of corresponding materials, the comprehensive mechanical properties of the Al-based composite material are increased by 25% or above.

Description

technical field [0001] The invention relates to a multiphase nano-ceramic particle-reinforced Al-based composite material and a laser 3D printing forming method thereof; it belongs to the technical field of laser 3D printing forming metal-based composite materials. Background technique [0002] With the continuous advancement of science and technology, higher requirements are put forward for the performance of materials. It is expected to have good comprehensive properties, such as low density, high strength, high stiffness, high toughness, high wear resistance and good fatigue resistance, etc. , and it is expected to serve in extreme environmental conditions such as high temperature, high pressure, high vacuum, strong corrosion and radiation. Traditional single materials have been difficult to meet the above requirements. In recent years, particle-reinforced aluminum matrix composites have attracted widespread attention. The combination of ceramic particles and aluminum al...

Claims

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Application Information

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IPC IPC(8): C22C21/00C22C32/00C22C1/04B22F3/105
Inventor 顾冬冬王泓乔马亮
Owner JIANGSU SILAIMU INTELLIGENT TECH CO LTD
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