A method for preparing complex high-strength aluminum alloys using laser-induced arc additive manufacturing technology

A laser-induced and additive manufacturing technology, applied in the field of additive manufacturing, can solve problems affecting the performance of parts, low dimensional accuracy, composition segregation, etc., and achieve the effects of suppressing cracks, improving forming quality, and shortening the manufacturing cycle

Active Publication Date: 2019-11-05
HUBEI POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, although the above-mentioned new high-strength aluminum alloys can be used for casting according to the ratio, there are still problems such as pores, cracks, and low dimensional accuracy when directly applied to additive forming.
In addition, due to the large difference in the physical properties of the elements in the alloy, elements with low melting points are prone to segregation due to evaporation under the action of a high-energy composite heat source, which affects the performance of parts

Method used

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  • A method for preparing complex high-strength aluminum alloys using laser-induced arc additive manufacturing technology

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Effect test

Embodiment 1

[0032] A method for preparing complex high-strength aluminum alloys using laser-induced arc additive manufacturing technology in this embodiment includes the following steps:

[0033] (1) In an argon environment, aluminum, magnesium, zinc, and copper are pulverized by atomization pulverization method to obtain aluminum powder, magnesium powder, zinc powder and copper powder respectively, and then the rare earth elements zirconium and scandium are pulverized. Mixing and milling to obtain rare earth powder;

[0034] (2) Mix according to the mass fractions of aluminum powder, magnesium powder, zinc powder, copper powder and rare earth powder to be 85.1%, 3.3%, 8.3%, 2.3% and 1.0% respectively to obtain alloy powder; Shaped high-strength aluminum alloy is rolled into a hollow tubular shape, and the alloy powder is filled into the tube core of the tubular high-strength aluminum alloy to obtain an aluminum alloy flux-cored aluminum wire, and the diameter of the aluminum alloy flux-c...

Embodiment 2

[0048] A method for preparing complex high-strength aluminum alloys using laser-induced arc additive manufacturing technology in this embodiment includes the following steps:

[0049] (1) In an argon environment, aluminum, magnesium, zinc, and copper are pulverized by atomization pulverization method to obtain aluminum powder, magnesium powder, zinc powder and copper powder respectively, and then the rare earth elements zirconium and scandium are pulverized. Mixing and milling to obtain rare earth powder;

[0050] (2) According to the mass fraction of aluminum powder, magnesium powder, zinc powder, copper powder and rare earth powder are respectively 84.6%, 3.3%, 8.3%, 2.3% and 1.5%, the alloy powder is obtained; Shaped high-strength aluminum alloy is rolled into a hollow tubular shape, and the alloy powder is filled into the tube core of the tubular high-strength aluminum alloy to obtain an aluminum alloy flux-cored aluminum wire, and the diameter of the aluminum alloy flux-c...

Embodiment 3

[0064] A method for preparing complex high-strength aluminum alloys using laser-induced arc additive manufacturing technology in this embodiment includes the following steps:

[0065] (1) In an argon environment, aluminum, magnesium, zinc, and copper are pulverized by atomization pulverization method to obtain aluminum powder, magnesium powder, zinc powder and copper powder respectively, and then the rare earth elements zirconium and scandium are pulverized. Mixing and milling to obtain rare earth powder;

[0066] (2) Mix according to the mass fractions of aluminum powder, magnesium powder, zinc powder, copper powder and rare earth powder to be 84.1%, 3.3%, 8.3%, 2.3% and 2.0% respectively to obtain alloy powder; Shaped high-strength aluminum alloy is rolled into a hollow tubular shape, and the alloy powder is filled into the tube core of the tubular high-strength aluminum alloy to obtain an aluminum alloy flux-cored aluminum wire. The diameter of the aluminum alloy flux-cored...

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Abstract

A method of using laser -induced arc additive manufacturing technology to prepare complex and high -strength aluminum alloy, including the following steps: (1) the atomized powder method to aluminum, magnesium, zinc, copper, and pyrine -made powder; (2)Mix the powder in proportion, formulate high -strength aluminum alloy into pipe shape, fill the powder into the tube core of the tubular high -strength aluminum alloy, and make aluminum alloy core aluminum silk; (3) establish a three -dimensional model of partsIn the formation equipment of material manufacturing; (4) guide the aluminum alloy core aluminum wire to the welded gun, and the aluminum aluminum cadron coil under the laser -induced arc, the robot is based on the trajectory of the layered road, and the complex high -strength aluminum alloy on the substrate is based on the trajectory of the layered road.Precise manufacturing, the advantages of short manufacturing cycle and low cost.

Description

technical field [0001] The invention relates to the technical field of additive manufacturing, in particular to a method for preparing complex high-strength aluminum alloys using laser-induced arc additive manufacturing technology. Background technique [0002] Aluminum alloy is the most widely used non-ferrous metal structural material in the industry. Because of its outstanding characteristics such as high specific strength, high toughness, good corrosion resistance, and non-magnetic properties, it has a wide range of applications in aerospace, military chemical, medical and other fields. application. For example, in the selection of materials, whether it is military aircraft or civil aircraft, high-strength aluminum alloys occupy an important position. Among them, aluminum alloys account for 70% to 80% of the weight of structural materials in civil aircraft. With the development of the aerospace industry and the fact that aerospace materials are subjected to various envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B22F9/08B33Y10/00
CPCB22F9/082B33Y10/00B22F2998/10B22F10/00B22F10/36B22F10/66B22F10/25B22F10/64B22F10/364B22F1/0003B22F2003/248B22F1/09B22F10/20Y02P10/25B22F1/00
Inventor 杨秀芝王向杰徐绍勇董春法杨春杰陈微
Owner HUBEI POLYTECHNIC UNIV
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