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Ti6Al4V alloy powder, preparation method of Ti6Al4V alloy powder and 3D printed product

A 3D printing and alloy powder technology, which is applied in the direction of additive manufacturing, energy efficiency improvement, additive processing, etc., can solve the problems of restricting the popularization and application of titanium alloy selective laser melting 3D printing molding, high price, complex process, etc., and achieve mechanical properties Outstanding, low cost, simple production process

Inactive Publication Date: 2020-06-23
SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used titanium powder preparation methods are mainly gas atomization method and rotating electrode method. These two preparation methods are complicated in process and high in cost. Generally, high-quality titanium powder on the market exceeds 2,000 yuan per kilogram, which is expensive and limits the selection of titanium alloys. Popularization and Application of Laser Melting 3D Printing

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  • Ti6Al4V alloy powder, preparation method of Ti6Al4V alloy powder and 3D printed product
  • Ti6Al4V alloy powder, preparation method of Ti6Al4V alloy powder and 3D printed product
  • Ti6Al4V alloy powder, preparation method of Ti6Al4V alloy powder and 3D printed product

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Experimental program
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Effect test

Embodiment 1

[0027] A kind of Ti 6 Al 4 V alloy powder, its preparation method comprises the following steps:

[0028] S1. Put the hydrogenated dehydrogenated titanium powder and agate balls into the ball milling equipment according to the ratio of ball to material ratio of 5:1, and add ethanol to cover the hydrogenated dehydrogenated titanium powder and agate balls, and then pass in argon to discharge the air , carry out ball milling modification treatment, ball milling process ball mill rotating speed is 150rpm, ball milling modification time is 6h; After finishing ball milling modification treatment, stand for 2h, make spherical titanium powder;

[0029] S2. Put the spherical titanium powder, aluminum powder and vanadium powder prepared in step S1 in a three-dimensional powder mixer, wherein the aluminum powder accounts for 6wt.% of the total powder after mixing, and the vanadium powder accounts for 4wt of the total powder after mixing. .%; mixed for 1h to obtain Ti 6 Al 4 V alloy p...

Embodiment 2

[0032] A kind of Ti 6 Al 4 V alloy powder, its preparation method comprises the following steps:

[0033] S1. Put the hydrogenated dehydrogenated titanium powder and agate balls into the ball milling equipment according to the ratio of ball to material ratio of 3:1, and add ethanol to cover the hydrogenated dehydrogenated titanium powder and agate balls, and then pass in argon to discharge the air , carry out ball milling modification treatment, ball milling process ball mill rotating speed is 200rpm, ball milling modification time is 5h; after finishing ball milling modification treatment, stand for 2h, make spherical titanium powder;

[0034] S2. Put the spherical titanium powder, aluminum powder, vanadium powder and yttrium powder prepared in step S1 in a three-dimensional powder mixer, wherein the aluminum powder accounts for 6wt.% of the total powder after mixing, and the vanadium powder accounts for 6wt.% of the total powder after mixing. 4wt.% of the powder, and the y...

Embodiment 3

[0037] A kind of Ti 6 Al 4 V alloy powder, its preparation method comprises the following steps:

[0038] S1. Put the hydrogenated dehydrogenated titanium powder and agate balls into the ball milling equipment according to the ratio of ball to material ratio of 3:1, and add ethanol to cover the hydrogenated dehydrogenated titanium powder and agate balls, and then pass in argon to discharge the air , carrying out ball milling modification treatment, ball milling process ball mill speed is 200rpm, ball milling modification time is 4h; After ball milling modification treatment is completed, stand for 2h to obtain spherical titanium powder;

[0039] S2. Put the spherical titanium powder, aluminum powder, vanadium powder and yttrium powder prepared in step S1 in a three-dimensional powder mixer, wherein the aluminum powder accounts for 6wt.% of the total powder after mixing, and the vanadium powder accounts for 6wt.% of the total powder after mixing. 4wt.% of the powder, and the ...

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Abstract

The invention discloses Ti6Al4V alloy powder, a preparation method of the Ti6Al4V alloy powder and a 3D printed product. The preparation method includes the following steps that hydrogenated dehydrogenated titanium powder is put into a ball milling device, ethanol is added, and ball milling treatment is performed to obtain spherical titanium powder; and then, the spherical titanium powder is takenand mixed with aluminum powder and vanadium powder to obtain the Ti6Al4V alloy powder. According to the preparation method of the Ti6Al4V alloy powder, the production process is simple, the production cycle is short, required equipment is simple, adopted raw materials are low in cost and easy to get, and the production cost is low; and the obtained Ti6Al4V alloy powder is high in sphericity, uniform in particle size, good in fluidity and suitable for 3D printing forming, the formability is good, and a formed Ti6Al4V alloy has outstanding mechanical properties.

Description

technical field [0001] The invention relates to the technical field of 3D printing material preparation, in particular to a Ti 6 Al 4 V alloy powder, its preparation method and 3D printed product. Background technique [0002] Due to its high specific strength, good corrosion resistance and biocompatibility, titanium alloy has a broad application background in aerospace, automotive, medical and petrochemical fields. Ti 6 Al 4 As a kind of titanium alloy, V alloy accounts for more than 70% of the application of titanium alloy because of its good comprehensive performance. Laser selective laser melting metal 3D printing molding technology has the advantages of high molding precision, good quality of molded parts, rapid manufacturing, near-net molding and intelligent manufacturing, and is more and more widely used in titanium alloy processing. [0003] However, the selective laser melting 3D printing process of titanium alloys requires metal powders with high sphericity, s...

Claims

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Application Information

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IPC IPC(8): B22F1/00B22F9/02B22F9/04B22F3/105B33Y70/00B33Y80/00
CPCB22F1/0003B22F9/023B22F9/04B33Y70/00B33Y80/00B22F2009/042B22F2009/043B22F10/00B22F10/36B22F10/34B22F10/28Y02P10/25
Inventor 董阳平严明李玉龙
Owner SOUTH UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA
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