Rare earth erbium element reinforced AlSi7Mg aluminum alloy powder specially used for SLM, and application thereof

A technology of aluminum alloy and elements, applied in the field of intelligent manufacturing, to achieve the effect of eliminating pellet-like eutectic structure, optimizing alloy performance, and promoting nucleation

Inactive Publication Date: 2018-09-04
上海康速金属科技有限公司
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[0005] Under such a technical background, there is still room for improvem...

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  • Rare earth erbium element reinforced AlSi7Mg aluminum alloy powder specially used for SLM, and application thereof
  • Rare earth erbium element reinforced AlSi7Mg aluminum alloy powder specially used for SLM, and application thereof
  • Rare earth erbium element reinforced AlSi7Mg aluminum alloy powder specially used for SLM, and application thereof

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[0017] In order to make the purpose, technical solutions and advantages of the present invention clearer, various embodiments of the present invention will be described in detail below. However, those of ordinary skill in the art can understand that, in each implementation manner of the present invention, many technical details are provided for readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following implementation modes, the technical solution claimed in each claim of the present application can be realized.

[0018] Rare earth erbium element reinforced AlSi7Mg aluminum alloy powder for SLM

[0019] In some specific embodiments of the present invention, there is provided AlSi7Mg aluminum alloy powder special for SLM reinforced with rare earth erbium element, which contains: Si 5.5-8.5%, Mg 0.55-0.75%, Er 0.2-0.9%, Zn <0.1%, Cu<0.1%, Mn<0.1%, Fe<0.1%, Ni<0.05%, Pb<0.05%, S...

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Abstract

The invention relates to the technical field of intelligent manufacturing, and discloses a rare earth erbium element reinforced AlSi7Mg aluminum alloy powder specially used for SLM (selective laser melting), and a preparation method and an application thereof. The rare earth erbium element reinforced AlSi7Mg aluminum alloy powder specially used for SLM comprises, by mass, 5.5-8.5% of Si, 0.55-0.75% of Mg, 0.2-0.9% of Er, 0.05-0.5% of Zr, below 0.1% of Zn, below 0.1% of Cu, below 0.1% of Mn, below 0.1% of Fe, below 0.05% of Ni, below 0.05% of Pb, below 0.05% of Sn, below 0.07% of Be, below 0.10% of O, and the balance of Al. AlSi7Mg aluminum alloy powder is reinforced with the rare earth erbium element, so the strength of an SLM molded part is improved, the weight reduction of an aviation part is realized, and the full performance of the SLM technology in the aerospace field is promoted.

Description

technical field [0001] The invention belongs to the technical field of intelligent manufacturing, and in particular relates to an AlSi7Mg aluminum alloy powder special for SLM reinforced with rare earth erbium element and its application. Background technique [0002] In recent years, aluminum alloy laser selective melting technology (SLM for short) has developed rapidly and has been widely used in the aerospace field. In its technology, metal powders for SLM with high strength and excellent performance are required. [0003] In the prior art, traditional grades of AlSi7Mg aluminum alloy materials are mostly used for atomization and powder spraying to obtain aluminum alloy powders for SLM. This technical route is simple and practical, and the development cycle is short. At present, the AlSi7Mg aluminum alloy powder obtained by this technical route is currently on the market. However, the disadvantage of this technical route is that it does not take into account the particul...

Claims

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Application Information

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IPC IPC(8): C22C21/02B22F1/00B22F3/105B33Y70/00
CPCC22C21/02B22F3/105B33Y70/00B22F1/05Y02P10/25
Inventor 梁立业曾献杰薛博宇
Owner 上海康速金属科技有限公司
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