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Additive manufacturing method of titanium-based composite materials with self-generated embedded ultrafine network structure reinforcement

A titanium-based composite material and network structure technology, which is applied in the direction of additive manufacturing, additive processing, and improvement of process efficiency, can solve the problems of reinforcement agglomeration, holes, etc., achieve uniform organization, wide application range, and ensure uniform distribution sexual effect

Active Publication Date: 2022-03-25
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a titanium-based composite material additive manufacturing method for a self-generated ultrafine network structure reinforcement, which realizes the regulation of the distribution of the reinforcement and the matrix structure, and solves the problems caused by conventional direct powder mixing for additive manufacturing. Reinforcement agglomeration, holes and other defects

Method used

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  • Additive manufacturing method of titanium-based composite materials with self-generated embedded ultrafine network structure reinforcement
  • Additive manufacturing method of titanium-based composite materials with self-generated embedded ultrafine network structure reinforcement
  • Additive manufacturing method of titanium-based composite materials with self-generated embedded ultrafine network structure reinforcement

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Embodiment 1

[0049] This embodiment provides a titanium-based composite material additive manufacturing method for a self-generated ultrafine network structure reinforcement,

[0050] Include the following steps:

[0051] A. Titanium and additives or titanium alloys and additives are prepared by at least three vacuum consumable arc melting methods to obtain titanium-based composite rods with reinforcements; the reinforcement is TiB; 2.5vol%TiB is prepared to reinforce pure titanium-based composites Material bar.

[0052] B. Machining the titanium-based composite material rod to a rod with a size of Φ50mm×500mm, and preparing the titanium-based composite material powder with the reinforcement embedded in the matrix alloy powder by a crucible-free gas atomization method;

[0053] C. The titanium-based composite material powder prepared by sieving with a particle size of 53-150 μm, the volume fraction of TiB reinforcement in the titanium-based composite material powder is 2.5%;

[0054] D. ...

Embodiment 2

[0057] This embodiment provides a titanium-based composite material additive manufacturing method for a self-generated ultrafine network structure reinforcement,

[0058] Include the following steps:

[0059] A. Titanium and additives or titanium alloys and additives are prepared by at least three vacuum consumable arc melting methods to obtain titanium-based composite rods with reinforcements; the reinforcements are TiB and TiC; 1vol%TiB+4vol%TiC is prepared Reinforced pure titanium matrix composite rods;

[0060] B. Machining the titanium-based composite material rod to a rod with a size of Φ50mm×500mm, and preparing the titanium-based composite material powder with the reinforcement embedded in the matrix alloy powder by a crucible-free gas atomization method;

[0061] C. The titanium-based composite material powder prepared by sieving with a particle size of 53-150 μm, the volume fraction of the reinforcement in the titanium-based composite powder is 1%; the reinforcement...

Embodiment 3

[0065] This embodiment provides a titanium-based composite material additive manufacturing method for a self-generated ultrafine network structure reinforcement,

[0066] Include the following steps:

[0067] A. Titanium and additives or titanium alloys and additives are prepared by at least three vacuum consumable arc melting methods to obtain titanium-based composite rods with reinforcements; the reinforcements are TiB, TiC, La2O3; 8.5vol%TiB+ is prepared 1vol%TiC+1vol%La2O3 reinforced pure titanium matrix composite rod.

[0068] B. Machining the titanium-based composite material rod to a rod with a size of Φ50mm×500mm, and preparing the titanium-based composite material powder with the reinforcement embedded in the matrix alloy powder by a crucible-free gas atomization method;

[0069] C. The titanium-based composite material powder prepared by sieving with a particle size of 53-150 μm, the volume fraction of the reinforcement in the titanium-based composite powder is 8.5%...

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Abstract

The invention discloses a titanium-based composite material additive manufacturing method for a self-generated ultrafine network structure reinforcement, and relates to the field of metal-based composite materials. It includes the following steps: standard titanium-based composite material rods are prepared by vacuum consumable arc melting technology; titanium-based composite material powder is prepared by crucible-free gas atomization method; sieved titanium-based composite material powder is deposited by laser 3D printing, set The three-dimensional shape and process participate in the laser scanning strategy, and the additive manufacturing under the protection of argon can obtain the titanium-based composite material with an embedded ultra-fine mesh structure; it solves the key technical problem that the complex structural parts of the material are difficult to process and manufacture, and avoids the traditional mechanical mixing. The key problems such as agglomeration and uneven distribution of reinforcements are introduced in post-powder 3D printing, and a special in-situ network structure composed of submicron ultrafine TiB is obtained, which realizes the regulation of reinforcement distribution and equiaxed matrix organization. The preparation of ultrafine structure titanium matrix composites by additive manufacturing has important application value.

Description

technical field [0001] The present invention relates to the field of metal-based composite materials, in particular to a titanium-based composite material additive manufacturing method for a self-generated ultrafine network structure reinforcement; in particular, it relates to an in-situ self-generated preparation of a submicron particle network based on laser 3D printing direct deposition technology The preparation method of titanium matrix composite material with shape distribution. Background technique [0002] Titanium alloy materials are an important class of important materials that are indispensable in all walks of life. With the further development of science and technology, titanium alloy materials are increasingly required to have high strength, toughness, high modulus and other properties under multi-field service conditions. By adding "reinforcements" such as particles, whiskers and fibers to the titanium alloy matrix, titanium-based composite materials with spe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F3/105B33Y10/00
CPCB33Y10/00B22F10/00B22F10/25B22F10/34B22F10/36B22F10/366B22F10/32Y02P10/25
Inventor 韩远飞方旻翰吕维洁黄光法吴华舵
Owner SHANGHAI JIAOTONG UNIV