CN106756290A - A kind of 3D printing preparation method of AlSi10Mg aluminium alloy superfine powders - Google Patents

A kind of 3D printing preparation method of AlSi10Mg aluminium alloy superfine powders Download PDF

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Publication number
CN106756290A
CN106756290A CN201611097367.5A CN201611097367A CN106756290A CN 106756290 A CN106756290 A CN 106756290A CN 201611097367 A CN201611097367 A CN 201611097367A CN 106756290 A CN106756290 A CN 106756290A
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Prior art keywords
alsi10mg
aluminium alloy
mesh
powder
superfine powders
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CN201611097367.5A
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Inventor
唐鹏钧
何天兵
何晓磊
李沛勇
陈军洲
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BEIJING INSTITUTE OF AERONAUTICAL MATERIALS CHINA AVIATION INDUSTRY GROUP Corp
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BEIJING INSTITUTE OF AERONAUTICAL MATERIALS CHINA AVIATION INDUSTRY GROUP Corp
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention belongs to metal and alloy powder preparing technical field, it is related to a kind of preparation method of 3D printing AlSi10Mg aluminium alloy superfine powders.Characterized in that, the step of preparing is as follows：Ultrasonic gas atomisation and ultrasonic activation are sieved.The present invention provides a kind of preparation method of AlSi10Mg aluminium alloy superfine powders suitable for 3D printing using home equipment condition.Powder prepared by the method has that process contamination is small, purity is high, oxygen content is low, Task-size Controlling is accurate and low cost and other advantages, can not only meet the requirement of 3D printing technique, and can realize the replacement to import powder.

Description

A kind of 3D printing preparation method of AlSi10Mg aluminium alloy superfine powders
Technical field
The invention belongs to metal and alloy powder preparing technical field, it is related to a kind of 3D printing AlSi10Mg aluminium alloys to surpass The preparation method of fine powder.
Background technology
Selective laser melt forming technique (Selective Laser Melting, SLM) be a kind of current comparative maturity, The 3D printing technique (Additive Manufacturing, AM) of commercial applications is realized.The technology is with super-fine metal powder End for raw material, automatically controlled using 3D CAD digital-to-analogues and special laser-light beam energy equipment, powdering and fusing layer by layer, manufacture zero (portion) The advanced technologies of part.The technology can be used to hollow direct forming, thin-walled, complex-shaped, dot matrix topological structure zero (portion) part.Swash The fusing sweep speed of light selective melting forming technique generally reaches 500mm/s~2000mm/s, and 20 μm of individual layer powder thickness~ 100 μm, scanning depth of fusion (spacing)~170 μm.Cooldown rate after powder fusing generally reaches 104K/s~105K/s.For Ensure the mechanical property of product, it is desirable to use superfine alloy powder.
Current AlSi10Mg aluminium alloys superfine powder has been widely used in 3D printing field, but domestic 3D printing AlSi10Mg Aluminium alloy superfine powder all relies on import.By retrieval, do not find to be prepared on 3D printing AlSi10Mg aluminium alloys superfine powder The open source literature of method and corresponding process parameters.Therefore, the present invention is wanted for 3D printing to AlSi10Mg aluminium alloy superfine powders Ask, using domestic vacuum atomizing stove, the ultrasonic vibration screening machine of independent research, by carrying out a series of experiment and excessively program control System research, has groped the preparation method and its technological parameter of 3D printing AlSi10Mg aluminium alloy superfine powders, realizes the powder Preparation.Tested by 3D printing, demonstrate the AlSi10Mg aluminium alloy superfine powders prepared using the method and disclosure satisfy that 3D beats Print technological requirement, so as to solve import powder high cost, the problems such as procurement cycle is long.
The content of the invention
The purpose of the present invention is：Using home equipment condition, there is provided a kind of 3D printing AlSi10Mg aluminium alloy superfine powders Preparation method.AlSi10Mg aluminium alloys superfine powder prepared by the method can not only meet the requirement of 3D printing technique, and The characteristics of there is low cost compared to import powder, it is possible to achieve to the replacement of import powder.
The technical scheme is that：A kind of 3D printing preparation method of AlSi10Mg aluminium alloy superfine powders, it is prepared The percentage by weight of AlSi10Mg each compositions of aluminium alloy superfine powder be：Si：9%~11%；Mg：0.25%~0.45%；Al： Surplus；Impurity content is：O：≤ 0.12%；Fe：≤ 0.55%；Ti：≤ 0.15%；Zn：≤ 0.10%；Cu：≤ 0.05%；Ni：≤ 0.05%；Mn：≤ 0.45%；Pb：≤ 0.05%；Sn：≤ 0.05%；Characterized in that, the step of preparing It is as follows：
1st, ultrasonic gas atomisation：Using refined aluminium ingot, primary magnesium ingot, aluminium silicon intermediate alloy ingot prepared furnace charge, using vacuum Atomizing furnace realizes that alloy molten solution is atomized, and atomization temperature is 740 DEG C~820 DEG C, and atomizing pressure is 1MPa~3MPa, is obtained The atomization original powder of AlSi10Mg aluminium alloy superfine powders；
2nd, ultrasonic activation screening：Atomization using ultrasonic activation screening plant to AlSi10Mg aluminium alloy superfine powders is former Powder is sieved.Specification from stainless steel mesh is 250 mesh, 270 mesh, 300 mesh, 325 mesh and 500 mesh.To screen cloth during screening Apply ultrasonic activation, AlSi10Mg aluminium alloy superfine powders are obtained after screening.
It is an advantage of the invention that：Using home equipment condition, there is provided a kind of AlSi10Mg aluminium suitable for 3D printing is closed The preparation method of golden superfine powder.Powder prepared by the method has that process contamination is small, purity is high, oxygen content is low, Task-size Controlling Accurate and low cost and other advantages, can meet the requirement of 3D printing technique.
Brief description of the drawings
Fig. 1 be the present invention prepare AlSi10Mg aluminium alloy superfine powders SEM under observe pattern (500X)。
Specific embodiment
The present invention is described in further details below.A kind of 3D printing preparation side of AlSi10Mg aluminium alloy superfine powders Method, the percentage by weight of prepared AlSi10Mg each compositions of aluminium alloy superfine powder is：Si：9%~11%；Mg：0.25%~ 0.45%；Al：Surplus；Impurity content is：O：≤ 0.12%；Fe：≤ 0.55%；Ti：≤ 0.15%；Zn：≤ 0.10%； Cu：≤ 0.05%；Ni：≤ 0.05%；Mn：≤ 0.45%；Pb：≤ 0.05%；Sn：≤ 0.05%；Characterized in that, prepare Step is as follows：
1st, ultrasonic gas atomisation：By food ingredient, stove is prepared using refined aluminium ingot, primary magnesium ingot, aluminium silicon intermediate alloy ingot Material.Using vacuum atomizing stove, formerly vacuumize and be subject to carry out melting to furnace charge in the atmosphere of high-purity nitrogen gas shielded.Melting is filled After point, alloy molten solution atomization is carried out using high-purity nitrogen.Atomization temperature be 740 DEG C~820 DEG C, atomizing pressure be 1MPa~ 3MPa.So as to obtain the atomization original powder of AlSi10Mg aluminium alloy superfine powders.
2nd, ultrasonic activation screening：Atomization using ultrasonic activation screening plant to AlSi10Mg aluminium alloy superfine powders is former Powder is sieved.Requirement according to user to powder size, is sieved using the standard stainless steel mesh of dimension.Generally Screening group is mixed into from 250 mesh, 270 mesh, 300 mesh or 325 mesh and 500 mesh stainless steel mesh.This screening group by two kinds not The screen cloth of same specification assembles according to the order of " ascending according to mesh size from bottom to top ".Apply 90 by screen cloth face ~100Hz ultrasonic activations, final obtain " screenings of big mesh size screen cloth, the oversize of small mesh size screen cloth " is 3D Printing AlSi10Mg aluminium alloy superfine powders.
Embodiment 1
By food ingredient, using refined aluminium ingot (purity >=99.99%), primary magnesium ingot (purity >=99.95%) and AlSi12A Intermediate alloy ingot (Si contents are 12%) prepared furnace charge.Using vacuum atomizing stove, high-purity nitrogen guarantor is formerly vacuumized and is subject to Melting is carried out to furnace charge in the atmosphere of shield.After melting is abundant, alloy molten solution atomization is carried out using high-purity nitrogen.Atomization temperature is 800 DEG C, atomizing pressure is 2.5MPa.So as to obtain the atomization original powder of AlSi10Mg aluminium alloy superfine powders.
After the completion of atomization, the atomization original powder of AlSi10Mg aluminium alloy superfine powders is carried out using ultrasonic activation screening plant Screening.Requirement according to user to powder size, from 300 mesh and 500 mesh stainless steel mesh, according to 500 eye mesh screens under, 300 eye mesh screens install screen cloth in upper order.Under the ultrasonic activation of 99.9Hz frequencies, atomized powder is sieved, obtain- The AlSi10Mg aluminium alloy superfine powders of the mesh specification of 300 mesh+500.
According to HB 6731 specify method determine AlSi10Mg aluminium alloy superfine powders in Si, Mg, Fe, Ti, Zn, Cu, Ni, Mn, Pb, Sn constituent content, the method specified according to GB/T 5158.4 determine the O content in AlSi10Mg aluminium alloy superfine powders； The granularity of AlSi10Mg aluminium alloy superfine powders is detected using the type laser particle size analyzers of Mastersizer 2000.
Table 1 is the chemical composition measured result of AlSi10Mg powder, and table 2 is the granularity measured result of AlSi10Mg powder.
The chemical composition of the AlSi10Mg aluminium alloy superfine powders of table 1
The granularity of the AlSi10Mg aluminium alloy superfine powders of table 2
The trade mark d(0.1)/μm d(0.5)/μm d(0.9)/μm
AlSi10Mg 17.010 31.387 52.331
Embodiment 2
By food ingredient, using refined aluminium ingot (purity >=99.99%), primary magnesium ingot (purity >=99.95%) and AlSi12A Intermediate alloy ingot (Si contents are 12%) prepared furnace charge.Using vacuum atomizing stove, high-purity nitrogen guarantor is formerly vacuumized and is subject to Melting is carried out to furnace charge in the atmosphere of shield.After melting is abundant, alloy molten solution atomization is carried out using high-purity nitrogen.Atomization temperature is 740 DEG C, atomizing pressure is 1.5MPa.So as to obtain the atomization original powder of AlSi10Mg aluminium alloy superfine powders.
After the completion of atomization, the atomization original powder of AlSi10Mg aluminium alloy superfine powders is carried out using ultrasonic activation screening plant Screening.Requirement according to user to powder size, from 250 mesh and 500 mesh stainless steel mesh, according to 500 eye mesh screens under, 250 eye mesh screens install screen cloth in upper order.Under the ultrasonic activation of 90Hz frequencies, atomized powder is sieved, obtain -250 The AlSi10Mg aluminium alloy superfine powders of the mesh specification of mesh+500.
According to HB 6731 specify method determine AlSi10Mg aluminium alloy superfine powders in Si, Mg, Fe, Ti, Zn, Cu, Ni, Mn, Pb, Sn constituent content, the method specified according to GB/T 5158.4 determine the O content in AlSi10Mg aluminium alloy superfine powders； The granularity of AlSi10Mg aluminium alloy superfine powders is detected using the type laser particle size analyzers of Mastersizer 2000.
Table 3 is the chemical composition measured result of AlSi10Mg powder, and table 4 is the granularity measured result of AlSi10Mg powder.
The chemical composition of the AlSi10Mg aluminium alloy superfine powders of table 3
The granularity of the AlSi10Mg aluminium alloy superfine powders of table 4
The trade mark d(0.1)/μm d(0.5)/μm d(0.9)/μm
AlSi10Mg 21.270 38.924 66.275
Embodiment 3
By food ingredient, using refined aluminium ingot (purity >=99.99%), primary magnesium ingot (purity >=99.95%) and AlSi12A Intermediate alloy ingot (Si contents are 12%) prepared furnace charge.Using vacuum atomizing stove, high-purity nitrogen guarantor is formerly vacuumized and is subject to Melting is carried out to furnace charge in the atmosphere of shield.After melting is abundant, alloy molten solution atomization is carried out using high-purity nitrogen.Atomization temperature is 820 DEG C, atomizing pressure is 3.0MPa.So as to obtain the atomization original powder of AlSi10Mg aluminium alloy superfine powders.
After the completion of atomization, the atomization original powder of AlSi10Mg aluminium alloy superfine powders is carried out using ultrasonic activation screening plant Screening.Requirement according to user to powder size, from 270 mesh and 500 mesh stainless steel mesh, according to 500 eye mesh screens under, 270 eye mesh screens install screen cloth in upper order.Under the ultrasonic activation of 99Hz frequencies, atomized powder is sieved, obtain -270 The AlSi10Mg aluminium alloy superfine powders of the mesh specification of mesh+500.
According to HB 6731 specify method determine AlSi10Mg aluminium alloy superfine powders in Si, Mg, Fe, Ti, Zn, Cu, Ni, Mn, Pb, Sn constituent content, the method specified according to GB/T 5158.4 determine the O content in AlSi10Mg aluminium alloy superfine powders； The granularity of AlSi10Mg aluminium alloy superfine powders is detected using the type laser particle size analyzers of Mastersizer 2000.
Table 5 is the chemical composition measured result of AlSi10Mg powder, and table 6 is the granularity measured result of AlSi10Mg powder.
The chemical composition of the AlSi10Mg aluminium alloy superfine powders of table 5
The granularity of the AlSi10Mg aluminium alloy superfine powders of table 6
The trade mark d(0.1)/μm d(0.5)/μm d(0.9)/μm
AlSi10Mg 17.197 33.997 59.480

Claims (1)

1. a kind of 3D printing preparation method of AlSi10Mg aluminium alloy superfine powders, prepared AlSi10Mg aluminium alloy superfine powders The percentage by weight of each composition is：Si：9%~11%；Mg：0.25%~0.45%；Al：Surplus；Impurity content is：O： ≤ 0.12%；Fe：≤ 0.55%；Ti：≤ 0.15%；Zn：≤ 0.10%；Cu：≤ 0.05%；Ni：≤ 0.05%；Mn：≤ 0.45%；Pb：≤ 0.05%；Sn：≤ 0.05%；Characterized in that, the step of preparing is as follows：
1.1st, ultrasonic gas atomisation：Using refined aluminium ingot, primary magnesium ingot, aluminium silicon intermediate alloy ingot prepared furnace charge, using vacuum mist Change stove and realize that alloy molten solution is atomized, atomization temperature is 740 DEG C~820 DEG C, and atomizing pressure is 1MPa~3MPa, obtains AlSi10Mg The atomization original powder of aluminium alloy superfine powder；
1.2nd, ultrasonic activation screening：The former powder of atomization using ultrasonic activation screening plant to AlSi10Mg aluminium alloy superfine powders Sieved.Specification from stainless steel mesh is 250 mesh, 270 mesh, 300 mesh, 325 mesh and 500 mesh.Screen cloth is applied during screening Plus ultrasonic activation, AlSi10Mg aluminium alloy superfine powders are obtained after screening.
CN201611097367.5A 2016-12-02 2016-12-02 A kind of 3D printing preparation method of AlSi10Mg aluminium alloy superfine powders Pending CN106756290A (en)

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Cited By (11)

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Publication number Priority date Publication date Assignee Title
CN107695338A (en) * 2017-09-21 2018-02-16 北京宝航新材料有限公司 A kind of AlSi7Mg dusty materials and preparation method thereof and its application
CN109280820A (en) * 2018-10-26 2019-01-29 中国航发北京航空材料研究院 It is a kind of for the high-strength aluminum alloy of increasing material manufacturing and its preparation method of powder
CN109434096A (en) * 2018-12-07 2019-03-08 南昌大学 A kind of enhancement type nanometer WC/AlSi10Mg composite powder and increasing material manufacturing technique
CN109877458A (en) * 2018-11-30 2019-06-14 沈阳工业大学 Cast aluminium radiator laser welding fries hole laser gain material repairing alloy powder and repairing method
CN110408824A (en) * 2019-09-03 2019-11-05 中国工程物理研究院机械制造工艺研究所 A kind of high strength alumin ium alloy suitable for 3D printing
CN111644630A (en) * 2020-05-29 2020-09-11 同济大学 Aluminum-silicon alloy powder for 3D printing and preparation method thereof
CN111976831A (en) * 2020-08-13 2020-11-24 北京新能源汽车股份有限公司 3D printed steering knuckle, manufacturing method, suspension system and automobile
CN111994168A (en) * 2020-08-13 2020-11-27 北京新能源汽车股份有限公司 3D printed steering knuckle, manufacturing method, suspension system and automobile
CN112009566A (en) * 2020-08-13 2020-12-01 北京新能源汽车股份有限公司 3D printed steering knuckle, manufacturing method, suspension system and automobile
CN112045189A (en) * 2020-08-13 2020-12-08 北京新能源汽车股份有限公司 Automobile part manufacturing method, automobile part and automobile
CN116144988A (en) * 2023-02-07 2023-05-23 国营芜湖机械厂 Aluminum alloy powder for additive manufacturing and preparation method thereof

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107695338A (en) * 2017-09-21 2018-02-16 北京宝航新材料有限公司 A kind of AlSi7Mg dusty materials and preparation method thereof and its application
CN109280820B (en) * 2018-10-26 2021-03-26 中国航发北京航空材料研究院 High-strength aluminum alloy for additive manufacturing and preparation method of powder of high-strength aluminum alloy
CN109280820A (en) * 2018-10-26 2019-01-29 中国航发北京航空材料研究院 It is a kind of for the high-strength aluminum alloy of increasing material manufacturing and its preparation method of powder
CN109877458A (en) * 2018-11-30 2019-06-14 沈阳工业大学 Cast aluminium radiator laser welding fries hole laser gain material repairing alloy powder and repairing method
CN109434096A (en) * 2018-12-07 2019-03-08 南昌大学 A kind of enhancement type nanometer WC/AlSi10Mg composite powder and increasing material manufacturing technique
CN110408824A (en) * 2019-09-03 2019-11-05 中国工程物理研究院机械制造工艺研究所 A kind of high strength alumin ium alloy suitable for 3D printing
CN111644630A (en) * 2020-05-29 2020-09-11 同济大学 Aluminum-silicon alloy powder for 3D printing and preparation method thereof
CN111976831A (en) * 2020-08-13 2020-11-24 北京新能源汽车股份有限公司 3D printed steering knuckle, manufacturing method, suspension system and automobile
CN112009566A (en) * 2020-08-13 2020-12-01 北京新能源汽车股份有限公司 3D printed steering knuckle, manufacturing method, suspension system and automobile
CN112045189A (en) * 2020-08-13 2020-12-08 北京新能源汽车股份有限公司 Automobile part manufacturing method, automobile part and automobile
CN111994168A (en) * 2020-08-13 2020-11-27 北京新能源汽车股份有限公司 3D printed steering knuckle, manufacturing method, suspension system and automobile
CN111976831B (en) * 2020-08-13 2023-08-22 北京新能源汽车股份有限公司 Steering knuckle after 3D printing, manufacturing method, suspension system and automobile
CN112009566B (en) * 2020-08-13 2023-08-29 北京新能源汽车股份有限公司 Steering knuckle after 3D printing, manufacturing method, suspension system and automobile
CN111994168B (en) * 2020-08-13 2023-09-01 北京新能源汽车股份有限公司 Steering knuckle after 3D printing, manufacturing method, suspension system and automobile
CN116144988A (en) * 2023-02-07 2023-05-23 国营芜湖机械厂 Aluminum alloy powder for additive manufacturing and preparation method thereof

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