Preparation method of nanoparticle reinforced titanium-based composite material based on 3D printing

A titanium-based composite material and 3D printing technology, applied in the field of 3D printing, can solve the problems of easy oxidation and high cost, and achieve the effects of fine grain strengthening, short molding time and high speed.

Pending Publication Date: 2021-06-04
深圳市光韵达增材制造研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw material used in this method is titanium powder, w

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0038]Example 1

[0039] Take commercially available TIH 2 Powder 300g, TiH 2 The purity of powder was 99.8%, a particle diameter of 40 μm, a ball milling tank in a pre-washed and dried, and a spherical volume ratio was 20: 1. Will have TiH 2 The ball ball mill is covered with a tank of the ball grinding tank with a nitrogen, and then the purity of 99.99% is filled into the ball grinding, and the pressure of nitrogen is 8 × 10 5 PA, then start mechanical ball milling, the ball mill is 200R / min, each ball milling time is 50 min, each adjacent two ball milling interval is 10 min, the ball mill is 5h, then stop the ball mill, to obtain the reinforcement TiN preparation The composite powder of the body is placed in a vacuum glove box, and the composite powder containing the reinforcing body TiN preparation is removed from the ball mill, and the sealed bag is loaded. Start the laser 3D printing device, and turn on the device to puminate the vacuum button. When pumping into 5PA, the s...

Example Embodiment

[0041] Example 2

[0042] Take commercially available TIH 2 Powder 100g, TIH 2 The purity of the powder was 99.8%, the particle diameter was 80 μm, and the spherical volume ratio was 10: 1 in a ball mill with a pre-washed and dried. Will have TiH 2 The ball ball mill is covered with a tank of the ball mill with a nitrogen, and then the purity of 99.99% is filled into the ball grinding tank, and the pressure of nitrogen is 3 × 10 5 PA, then start mechanical ball milling, the rotational speed of the ball mill is 400R / min, each ball milling time is 20 minutes, each adjacent two ball mills are 15 min, the total ball mill is 2 h, then stop the ball mill, get the reinforcement TiN preparation The composite powder of the body is placed in a vacuum glove box, and the composite powder containing the reinforcing body TiN preparation is removed from the ball mill, and the sealed bag is loaded. Start the laser 3D printing device, and turn on the device to extract the vacuum button, which is...

Example Embodiment

[0043] Example 3

[0044] Take commercially available TIH 2 Powder 200g, TiH 2 The purity of powder was 99.8%, a particle diameter of 60 μm, a ball milling tank with a pre-washed and dried, and the spherical volume ratio was 15: 1. Will have TiH 2 The ball ball mill is covered with a tank of the ball grinding with a nitrogen, and then the purity of 99.99% is filled into the ball grinding tank, and the pressure of nitrogen is 5 × 10 5 PA, then start mechanical ball milling, the rotational speed of the ball mill is 200R / min, each ball milling time is 50 min, each adjacent two ball milling interval is 10 min, the ball mill is 5h, then stop the ball mill, to obtain the reinforcement TiN preparation In the vacuum glove box, the ball mill is placed in a vacuum box, and the composite powder containing the reinforcing body TiN preparation is removed from the ball mill, and the sealed bag is loaded. Start the laser 3D printing device, and turn on the device to puminate the vacuum button....

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Abstract

The invention provides a preparation method of a nanoparticle reinforced titanium-based composite material based on 3D printing. The preparation method comprises the following steps: S1, weighing TiH2 powder, and putting the TiH2 powder into a pre-cleaned and dried ball-milling tank; S2, covering the ball-milling tank filled with the TiH2 powder, flushing the ball-milling tank with nitrogen for 2-3 times to remove air in the tank, and then filling nitrogen into the tank; and S3, carrying out high-pressure ball milling on the TiH2 powder and the nitrogen in an intermittent ball-milling mode to prepare a reinforcement TiN preparation body, placing the ball-milling tank in a vacuum glove box after ball milling is completed, taking out the prepared composite powder containing the reinforcement TiN preparation body, and loading into a sealed container; and S4, carrying out laser 3D printing forming on the composite powder containing the reinforcement TiN preparation body obtained after ball milling in the inert gas atmosphere or the vacuum condition. According to the preparation method, during 3D printing forming, the TiH2 powder is decomposed into Ti and H2 at a high temperature, a reducing atmosphere is provided, generation of TiO2 can be prevented, the forming time is short, and parts with complex shapes can be prepared.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a method for preparing a nanoparticle-reinforced titanium-based composite material based on 3D printing. Background technique [0002] Metal additive manufacturing technology is a high-end manufacturing technology that has developed rapidly in recent years. Based on the design idea of ​​"layer-by-layer accumulation", the required components are obtained through the accumulation of multiple layers. This technology only needs to establish a three-dimensional model of the workpiece to be prepared, and slice the model into several layers, start from the bottom layer through the process of rapid melting / solidification of laser or electron beam, and prepare components through accumulation. This technology has great advantages in the preparation of complex components, which greatly shortens the production cycle of the workpiece and reduces the cost of research and development. Howe...

Claims

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Application Information

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IPC IPC(8): C22C14/00C22C32/00C22C1/10B33Y40/10B33Y10/00B33Y70/00B33Y80/00
CPCC22C14/00C22C32/0068C22C1/10C22C1/1005B33Y40/10B33Y10/00B33Y70/00B33Y80/00C22C1/1089
Inventor 李春新李娜娜李昕张思伟韦佳成林煜佳
Owner 深圳市光韵达增材制造研究院
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