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3D printing high-compactness titanium-titanium boride composite material and preparation method thereof

A composite material and 3D printing technology, which is applied in the field of titanium-titanium boride composite materials, can solve the problems of poor mechanical properties of Ti-TiB composite materials, easy introduction of impurities, laser power, and low density of composite materials, and achieve uniform dispersion The effect of high reliability, abundant resources, and no need for molds

Inactive Publication Date: 2018-10-09
WUHAN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TiB of the method 2 Less dosage, easy introduction of impurities after pot milling and low laser power, resulting in the final Ti-TiB 2 Composite materials have low density and poor mechanical properties
[0007] Therefore, the use of SLM technology to prepare Ti-TiB 2 Composite TiB 2 The small dosage, easy introduction of impurities through ball milling or pot milling and low laser power lead to the final Ti-TiB 2 The mechanical properties of composite materials are poor

Method used

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  • 3D printing high-compactness titanium-titanium boride composite material and preparation method thereof
  • 3D printing high-compactness titanium-titanium boride composite material and preparation method thereof
  • 3D printing high-compactness titanium-titanium boride composite material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0033] A 3D printing high-density titanium-titanium boride composite material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0034] Step 1, with the titanium powder body of 45~53wt% and the titanium diboride powder body of 47~55wt% as raw material, mix, obtain raw material powder; Then press described raw material powder: the mass ratio of agate ball is 1: (1 ~5), the raw material powder and the agate balls are placed in a mixer mill, and mixed for 1-6 hours to obtain titanium-titanium diboride powder.

[0035] Step 2. Manually spread the titanium-titanium diboride powder on the substrate of the 3D printing device according to the set powder coating thickness of each layer, vacuumize to -0.1MPa, and pass in circulating argon gas; HUST 3DP software in the computer, select the designed 3D model, then turn on the laser in the 3D printing device, manually control the first layer of laser scanning, the first layer of laser...

Embodiment 2

[0040] A 3D printing high-density titanium-titanium boride composite material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0041] Step 1, with the titanium powder body of 52~61wt% and the titanium diboride powder body of 39~48wt% as raw material, mix, obtain raw material powder; Then press described raw material powder: the mass ratio of agate ball is 1: (1 ~5), the raw material powder and the agate balls are placed in a mixer mill, and mixed for 1-6 hours to obtain titanium-titanium diboride powder.

[0042] Step 2. Manually spread the titanium-titanium diboride powder on the substrate of the 3D printing device according to the set powder coating thickness of each layer, vacuumize to -0.1MPa, and pass in circulating argon gas; HUST 3DP software in the computer, select the designed 3D model, then turn on the laser in the 3D printing device, manually control the first layer of laser scanning, the first layer of laser...

Embodiment 3

[0047] A 3D printing high-density titanium-titanium boride composite material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0048] Step 1, with the titanium powder body of 60~69wt% and the titanium diboride powder body of 31~40wt% as raw material, mix, obtain raw material powder; Then press described raw material powder: the mass ratio of agate ball is 1: (1 ~5), the raw material powder and the agate balls are placed in a mixer mill, and mixed for 1-6 hours to obtain titanium-titanium diboride powder.

[0049] Step 2. Manually spread the titanium-titanium diboride powder on the substrate of the 3D printing device according to the set powder coating thickness of each layer, vacuumize to -0.1MPa, and pass in circulating argon gas; HUST 3DP software in the computer, select the designed 3D model, then turn on the laser in the 3D printing device, manually control the first layer of laser scanning, the first layer of laser...

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Abstract

The invention relates to a 3D printing high-compactness titanium-titanium boride composite material and a preparation method thereof. 45-84 wt% of titanium powder and 16-55 wt% of titanium diboride powder are mixed to obtain raw material powder; and titanium and titanium diboride powder is obtained through burdening and mixing according to a mass ratio of the raw material powder to agate balls of1: (1-5). The titanium and titanium diboride powder is manually paved on a substrate of 3D printing equipment according to each-layer powder paving thickness; the manual powder pavement and the manualcontrol of laser scanning of 3-5 layers are firstly performed; and then, the each-layer automatic powder pavement and the each-layer automatic laser scanning are performed until targets are printed to obtain the titanium-titanium boride composite material. The 3D printing high-compactness titanium-titanium boride composite material is obtained through polishing by a sand blasting machine, surfaceimpurity removal, drying and heat treatment. The process is simple, and needs no mold, no high-temperature and high-pressure preparation condition and no subsequent material reducing treatment; and the prepared product is high in purity, compactness and size precision and excellent in mechanical performance.

Description

technical field [0001] The invention belongs to the technical field of titanium-titanium boride composite materials. Specifically, it relates to a 3D printing high-density titanium-titanium boride composite material and a preparation method thereof. Background technique [0002] Titanium has the characteristics of low density, non-magnetic, excellent corrosion resistance and biocompatibility, and can be widely used in aerospace and biomedicine fields, but there are problems of poor wear resistance and low hardness, which limit the application range of titanium . Titanium diboride has the advantages of low density, high melting point, high strength, high hardness, high elastic modulus, excellent electrical conductivity and good thermal conductivity, and has been widely used in aerospace, military manufacturing and composite ceramic materials. Applications. Therefore, titanium diboride can be used as a ceramic reinforcing phase, which can effectively improve the wear resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B33Y10/00B33Y70/00B22F1/00C22C14/00C22C29/14C22C32/00
CPCB22F1/0003C22C14/00C22C29/14C22C32/0073B33Y10/00B33Y70/00B22F10/00B22F10/66B22F10/36B22F10/28B22F10/366B22F10/32Y02P10/25
Inventor 刘江昊刘杰张海军林良旭张少伟
Owner WUHAN UNIV OF SCI & TECH
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