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High-toughness aluminum alloy powder material for laser additive, preparation method and application

A powder material and laser additive technology, applied in the field of 3D printing materials, can solve the problems of adding a large amount of rare earth elements, high cost, poor mechanical properties, etc., and achieve the effect of excellent surface quality, low cost, excellent strength and toughness

Active Publication Date: 2022-04-29
江西宝航新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a high-toughness aluminum alloy powder material for laser additives, its preparation method and application, in order to solve the mechanical properties of the powder material in the prior art Poor, needs to add a large amount of rare earth elements to cause high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A high-toughness aluminum alloy powder material for laser additives, the mass fraction of main alloy elements in the powder material is: Mg: 3.3wt%, Zr: 1.2wt%, Ti: 1.3wt%, Mn: 0.9wt%, The balance is Al.

[0038] The raw material of the powder material is a combination of magnesium, pure aluminum, aluminum-zirconium alloy, aluminum-manganese alloy, and aluminum-titanium alloy.

[0039] The preparation method of the above-mentioned high-toughness aluminum alloy powder material for laser additive includes:

[0040] Step 1, weighing the required amount of raw material magnesium, pure aluminum, aluminum-zirconium alloy, aluminum-manganese alloy, aluminum-titanium alloy, and placing it in a smelting device;

[0041] Step 2, vacuumize the smelting device until its vacuum degree is 8Pa, and then fill it with nitrogen to atmospheric pressure;

[0042] Step 3: After melting aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese all...

Embodiment 2

[0060] A high-toughness aluminum alloy powder material for laser additives, the mass fraction of main alloy elements in the powder material is: Mg: 2.8wt%, Zr: 1.5wt%, Ti: 1.2wt%, Mn: 1.0wt%, The balance is Al.

[0061] The raw material of the powder material is a combination of magnesium, pure aluminum, aluminum-zirconium alloy, aluminum-manganese alloy, and aluminum-titanium alloy.

[0062] The preparation method of the above-mentioned high-toughness aluminum alloy powder material for laser additive includes:

[0063] Step 1, weighing the required amount of raw material magnesium, pure aluminum, aluminum-zirconium alloy, aluminum-manganese alloy, aluminum-titanium alloy, and placing it in a smelting device;

[0064] Step 2, evacuating the smelting device to a vacuum degree of 9 Pa, and then filling it with nitrogen to atmospheric pressure;

[0065] Step 3: Melt aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy at 110...

Embodiment 3

[0083] A high-toughness aluminum alloy powder material for laser additives, the mass fraction of main alloy elements in the powder material is: Mg: 2.5wt%, Zr: 1.5wt%, Ti: 1.0wt%, Mn: 1.2wt%, The balance is Al.

[0084] The raw material of the powder material is a combination of magnesium, pure aluminum, aluminum-zirconium alloy, aluminum-manganese alloy, and aluminum-titanium alloy.

[0085] The preparation method of the above-mentioned high-toughness aluminum alloy powder material for laser additive includes:

[0086] Step 1, weighing the required amount of raw material magnesium, pure aluminum, aluminum-zirconium alloy, aluminum-manganese alloy, aluminum-titanium alloy, and placing it in a smelting device;

[0087] Step 2, vacuumize the smelting device until its vacuum degree is 8Pa, and then fill it with nitrogen to atmospheric pressure;

[0088] Step 3: Melt aluminum, aluminum-silicon alloy, aluminum-iron alloy, aluminum-nickel alloy, and aluminum-manganese alloy at 125...

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Abstract

The invention provides a high-toughness aluminum alloy powder material for laser additive, a preparation method and application. The powder material comprises the following main alloy elements in percentage by mass: 2.5 to 4.0 weight percent of Mg, 1.0 to 1.5 weight percent of Zr, 1.0 to 1.5 weight percent of Ti, 0.7 to 1.2 weight percent of Mn and the balance of Al. According to the method, Mg and Ti elements are added, the Zr element is added to form a dispersed phase with Ti, the dispersion strengthening effect is achieved in the heat treatment process, the Mn element is added to improve the weldability of the material in order to solve the problem of heat cracks of the material, the interaction of all the elements in the multi-element alloy is achieved through a 3D printing method, and the welding performance of the multi-element alloy is improved. And the restriction of the solid solubility of the components on the improvement of the material performance is greatly improved, and finally, the aluminum alloy powder material achieves the purposes of excellent strength and toughness.

Description

technical field [0001] The invention relates to the technical field of 3D printing materials, in particular to a high-toughness aluminum alloy powder material for laser additives, a preparation method and an application thereof. Background technique [0002] In recent years, with the development of additive manufacturing technology, especially laser additive technology, it has provided a good solution to the liberation of design freedom. Unlike traditional subtractive processing, additive technology has a very high utilization rate of materials, almost No further processing is required. [0003] At present, the most widely used in the field of aluminum alloy additive manufacturing is a series of materials based on Al-Si alloys, all of which are improved by casting aluminum alloys. They have good molten pool feeding capabilities and can be formed by laser additives. Highly dense parts, but subject to its material system, the mechanical properties of the material are poor, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/06B22F9/08B22F1/14B22F10/28B22F10/64B33Y10/00B33Y40/20B33Y70/00
CPCC22C21/06B22F9/082B22F10/28B22F10/64B33Y10/00B33Y40/20B33Y70/00B22F2009/0824B22F2009/0848Y02P10/25
Inventor 赵春禄胡万谦李振民王联波
Owner 江西宝航新材料有限公司