阅读说明：本技术 一种用于增材制造的铝合金粉末 (Aluminum alloy powder for additive manufacturing ) 是由 魏放 张柯 叶国晨 唐跃跃 蒋保林 许荣玉 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种用于增材制造的铝合金粉末,包括以下重量比组分Zn：10-15%、Cu:2-6%、Hf：4-5%、Ta:0.1-0.15%、Gr:5-6%、Al:75-85%,本发明的铝合金粉末抗拉强度大、屈服强度高、延伸率好,可以很好的满足生产需求。(The invention discloses aluminum alloy powder for additive manufacturing, which comprises the following components in parts by weight: 10-15%, Cu 2-6%, Hf: 4-5 percent of Ta, 0.1-0.15 percent of Gr, 5-6 percent of Gr and 75-85 percent of Al, and the aluminum alloy powder has the advantages of high tensile strength, high yield strength and good elongation and can well meet the production requirement.)

1. The aluminum alloy powder for additive manufacturing is characterized by comprising the following components, by weight, 0.7-0.8% of Si, 0.75-0.8% of Fe0.5-0.6% of Cu0.5-0.6% of Mn0.2-0.3% of Ni0.8-1.2%, 0.4-0.5% of Cr0.2-0.3% of Ti0.6-0.7% of Sc0.6-0.7%, and the balance of Al.

2. The aluminum alloy powder for additive manufacturing according to claim 1, comprising the following components, by weight, 0.7% of Si0.75%, Fe0.75%, Cu0.5%, Mn0.2%, Ni0.8%, Cr0.4%, Ti0.2%, Sc0.6%, and the balance Al.

3. The aluminum alloy powder for additive manufacturing according to claim 1, comprising the following components, by weight, 0.8% of si, 0.8% of fe, 0.6% of cu, 0.3% of mn, 1.2% of ni, 0.5% of cr, 0.3% of ti, 0.7% of sc, and the balance Al.

4. An aluminium alloy powder for additive manufacturing according to claim 1, comprising the following components in weight ratio si 0.75%, fe0.78%, cu0.55%, mn0.25%, ni0.9%, cr0.45%, ti0.25%, sc0.65%, and the remainder Al.

Technical Field

The invention relates to the technical field of metal powder, in particular to aluminum alloy powder for additive manufacturing.

Background

With the continuous improvement of industrialization, additive manufacturing is widely applied in the fields of machining, die manufacturing and the like. At present, the rapid forming method for directly forming metal parts mainly comprises three methods: selective Laser Sintering (SLS), Laser Cladding (LC), Selective Laser Melting (SLM). The selective laser melting is an incremental manufacturing technology based on a discrete-accumulation concept, and contrary to the traditional material removing processing method, the selective laser melting is used for selectively melting metal powder layer by layer to accumulate and form metal parts, so that the selective laser melting has the obvious advantages of short production period, complex part geometric shape, various material processing types and the like

The existing aluminum alloy powder often has cracks during manufacturing and has poor abrasion resistance and weather resistance.

Disclosure of Invention

In order to comprehensively solve the problems, the aluminum alloy powder for additive manufacturing is provided aiming at the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical means:

an aluminum alloy powder for additive manufacturing comprises, by weight, 0.7-0.8% of Si, 0.75-0.8% of Fe0.5-0.6% of Cu0.2-0.3% of Mn0.8-1.2% of Ni0.8-1.2% of Cr0.4-0.5% of Ti0.2-0.3% of Sc0.6-0.7% of Sc, and the balance of Al.

Further comprises the following components, by weight, 0.7% of Si0.75%, 0.5% of Cu0.2%, 0.8% of Ni0.4%, 0.2% of Cr0.4%, 0.6% of Ti0.2%, and the balance of Al.

Further comprises the following components, by weight, 0.8% of Si0.8%, 0.8% of Fe0.6% of Cu0.3%, 0.3% of Mn1.2%, 0.5% of Cr0.3%, 0.7% of Sc0.7%, and the balance of Al.

Further comprises the following components, by weight, 0.75% of Si0.78%, 0.78% of Fe0.55%, 0.25% of Cu0.55%, 0.25% of Mn0.9%, 0.45% of Ni0%, 0.25% of Cr0.45%, 0.65% of Ti0.25%, and the balance of Al.

Compared with the prior art, the invention has the following advantages:

the product made of the aluminum alloy powder can well avoid the generation of cracks and has better weather resistance and wear resistance.

Detailed Description

The technical solutions of the present invention will be described clearly and completely by the following embodiments, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.