Method for manufacturing metal-based composite materials by aid of 3D (three-dimensional) printing space structures

Abstract

The invention relates to a method for manufacturing metal-based composite materials by the aid of 3D (three-dimensional) printing space structures, and belongs to the technical field of metal-based composite materials. The method includes building stereoscopic models of the space structures by the aid of graphics software and printing the stereoscopic models by the aid of 3D printing machines to obtain plastic templates of the space structures; preparing slurry from ceramic particles and adhesion agents, and filling space structure gaps of the plastic templates with the slurry; drying and gradually heating the plastic templates, removing plastics, and sintering the templates to obtain ceramic particle prefabricated blanks with certain strength and complex space structures; manufacturing the metal-based composite materials by the aid of pressure impregnation technologies such as vacuum suction casting and squeezing casting technologies. The method has the advantages that the composite materials which can be accurately controlled, are varied within large ranges and have the complex space structures can be manufactured by the aid of the method, processes are simple, and mechanical and automatic batch production can be facilitated.

Description

technical field

[0001] The invention relates to a method for preparing a metal matrix composite material by using a 3D printing space structure, and belongs to the technical field of metal matrix composite materials. Background technique

[0002] In mining, building materials, electric power and other fields, the crushing of materials is an important production process, which requires a large amount of wear-resistant parts. There is not much room for performance improvement of traditional wear-resistant materials such as high manganese steel and high-chromium cast iron. The development of new high-performance wear-resistant materials is of great significance to our country. In recent years, ceramic particle (p) reinforced steel matrix composites (MMCs), as a new type of high-performance wear-resistant material, are gradually being used in the industrial field. Toughening the space structure of MMCs has been proved to be an effective measure to improve its plasticity and toug...

Examples

Embodiment 1

[0031] Preparation of toughened steel matrix composites with space structure of sphere stacking

[0032] The specific steps of the method for preparing a metal matrix composite material using a 3D printing space structure are as follows:

[0033] Step 1, first use the Solid Edge drawing software to draw the three-dimensional model of the required spatial structure, the three-dimensional model of the required spatial structure is as follows figure 1 The space structure is stacked with medium spheres, the diameter of the sphere is 2.5mm, and the body-centered cube is stacked; the length of the connecting rod part is 1mm, and the diameter is 1mm. Use a 3D printer to print the drawn space structure into a space structure plastic template;

[0034] Step 2, prepare ceramic particles and binders into a slurry, then pour the slurry into the solid part of the space structure plastic formwork in step 1, and then sinter the space structure plastic formwork filled with slurry at high temp...

Embodiment 2

[0037] Preparation of regular hexahedron stacked space structure toughened steel matrix composites

[0038] The specific steps of the method for preparing a metal matrix composite material using a 3D printing space structure are as follows:

[0039] Step 1, at first utilize Proe drawing software to draw the three-dimensional model of required spatial structure, the three-dimensional model of required spatial structure is as follows Figure 5 The central hexahedron stacks the space structure, the cross-section gap side length is 2.5mm, and the thickness of the solid part is 1.8mm. Use a 3D printer to print the drawn space structure into a space structure plastic template;

[0040] Step 2, prepare ceramic particles and binders into a slurry, and then pour the slurry into the void part of the space structure plastic formwork in step 1, and then sinter the space structure plastic formwork filled with slurry at high temperature, and burn out the plastic to obtain ceramics Particle...

Embodiment 3

[0043] Preparation of metal matrix composites with double helix space structure

[0044] The specific steps of the method for preparing a metal matrix composite material using a 3D printing space structure are as follows:

[0045] Step 1, at first utilize Proe drawing software to draw the three-dimensional model of required spatial structure, the three-dimensional model double helix spatial structure of required spatial structure, as image 3As shown, the spiral radius is 1.8mm and the pitch is 2mm. Use a 3D printer to print the drawn space structure into a space structure plastic template;

[0046] Step 2. Prepare ceramic particles and binders into a slurry, and then pour the slurry into the solid internal hollow part of the space structure plastic formwork in step 1, and then sinter the space structure plastic formwork filled with slurry at high temperature to burn out the plastic The ceramic particle prefabricated body is obtained, and the high-temperature sintering tempe...

technical field

[0001] The invention relates to a method for preparing a metal matrix composite material by using a 3D printing space structure, and belongs to the technical field of metal matrix composite materials. Background technique

[0002] In mining, building materials, electric power and other fields, the crushing of materials is an important production process, which requires a large amount of wear-resistant parts. There is not much room for performance improvement of traditional wear-resistant materials such as high manganese steel and high-chromium cast iron. The development of new high-performance wear-resistant materials is of great significance to our country. In recent years, ceramic particle (p) reinforced steel matrix composites (MMCs), as a new type of high-performance wear-resistant material, are gradually being used in the industrial field. Toughening the space structure of MMCs has been proved to be an effective measure to improve its plasticity and toug...

Examples

Embodiment 1

[0031] Preparation of toughened steel matrix composites with space structure of sphere stacking

[0032] The specific steps of the method for preparing a metal matrix composite material using a 3D printing space structure are as follows:

[0033] Step 1, first use the Solid Edge drawing software to draw the three-dimensional model of the required spatial structure, the three-dimensional model of the required spatial structure is as follows figure 1 The space structure is stacked with medium spheres, the diameter of the sphere is 2.5mm, and the body-centered cube is stacked; the length of the connecting rod part is 1mm, and the diameter is 1mm. Use a 3D printer to print the drawn space structure into a space structure plastic template;

[0034] Step 2, prepare ceramic particles and binders into a slurry, then pour the slurry into the solid part of the space structure plastic formwork in step 1, and then sinter the space structure plastic formwork filled with slurry at high temp...

Embodiment 2

[0037] Preparation of regular hexahedron stacked space structure toughened steel matrix composites

[0038] The specific steps of the method for preparing a metal matrix composite material using a 3D printing space structure are as follows:

[0039] Step 1, at first utilize Proe drawing software to draw the three-dimensional model of required spatial structure, the three-dimensional model of required spatial structure is as follows Figure 5 The central hexahedron stacks the space structure, the cross-section gap side length is 2.5mm, and the thickness of the solid part is 1.8mm. Use a 3D printer to print the drawn space structure into a space structure plastic template;

[0040] Step 2, prepare ceramic particles and binders into a slurry, and then pour the slurry into the void part of the space structure plastic formwork in step 1, and then sinter the space structure plastic formwork filled with slurry at high temperature, and burn out the plastic to obtain ceramics Particle...

Embodiment 3

[0043] Preparation of metal matrix composites with double helix space structure

[0044] The specific steps of the method for preparing a metal matrix composite material using a 3D printing space structure are as follows:

[0045] Step 1, at first utilize Proe drawing software to draw the three-dimensional model of required spatial structure, the three-dimensional model double helix spatial structure of required spatial structure, as image 3As shown, the spiral radius is 1.8mm and the pitch is 2mm. Use a 3D printer to print the drawn space structure into a space structure plastic template;

[0046] Step 2. Prepare ceramic particles and binders into a slurry, and then pour the slurry into the solid internal hollow part of the space structure plastic formwork in step 1, and then sinter the space structure plastic formwork filled with slurry at high temperature to burn out the plastic The ceramic particle prefabricated body is obtained, and the high-temperature sintering tempe...

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