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A kind of ceramic metal heterostructure 3D printing welding manufacturing method

A heterogeneous structure, ceramic metal technology, applied in the direction of manufacturing tools, ceramic molding machines, metal processing equipment, etc., can solve the problems of large stress, complex shape forming of ceramic metal heterogeneous structure, etc., to relieve structural stress and improve various Isotropic, optimized design effect

Active Publication Date: 2018-10-02
哈尔滨邦定科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the problem of difficulty in forming complex shapes of ceramic-metal heterogeneous structures, and the problems of relatively large stress in the joints of welded structural parts formed by brazing metal and ceramic materials, and to improve the bonding strength of the joint interface, and provides a ceramic-metal heterogeneous structure. Mass structure 3D printing welding manufacturing method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0036] Specific implementation mode 1: A 3D printing and welding manufacturing method of a ceramic metal heterogeneous structure in this implementation mode is carried out according to the following steps:

[0037] 1. Establishment of 3D model:

[0038] The three-dimensional model of the part structure is established by Auto CAD software. The model is processed by layering and slicing, and the thickness of the printing layer is set to 0.5mm~1mm. When printing, the moving speed of the slurry nozzle and the initiator nozzle is 20mm / s~50mm / s , transfer the data to the 3D cold printing device;

[0039] Two, Si 3 N 4 Preparation of ceramic slurry:

[0040] Dissolve acrylamide and N,N'-methylenebisacrylamide in deionized water to obtain a premix A, add ammonia water and isooctyl alcohol with a mass percentage of 25% to 28% to the premix A, and then add Si 3 N 4 Mix and stir ceramic powder, then add Al 2 o 3 , at N 2 ball milling under atmosphere for 20h to obtain Si 3 N 4 ...

specific Embodiment approach 2

[0065]Specific embodiment two: the difference between this embodiment and specific embodiment one is: the Si described in step two 3 N 4 The particle size of the ceramic powder is 10 μm to 20 μm. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0066] Specific embodiment three: the difference between this embodiment and one of the specific embodiments one or two is: Al described in step two 2 o 3 The particle size is 1 μm to 2 μm. Others are the same as in the first or second embodiment.

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PUM

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Abstract

A 3D printing and welding manufacturing method of a ceramic metal heterogeneous structure, the invention relates to a 3D printing and welding manufacturing method. The invention solves the problem that it is difficult to form complex shapes of ceramic and metal heterogeneous structures, and the joints of welded structural parts formed by brazing metal and ceramic materials have relatively large stress. Methods: 1. Three-dimensional model establishment; 2. Preparation of Si3N4 ceramic slurry; 3. Preparation of Ti metal slurry; 4. Preparation of initiator; 5. Slurry transport and printing; 6. Layer-by-layer printing; 7. Sintering 8. GMAW 3D printing and welding; 9. Stress relief treatment, that is, to complete the 3D printing and welding manufacturing method of ceramic metal heterogeneous structure. The invention is used for a 3D printing and welding manufacturing method of a ceramic metal heterogeneous structure.

Description

technical field [0001] The invention relates to a 3D printing welding manufacturing method. Background technique [0002] 3D printing technology is a technology that uses bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing based on digital model files. It can generate parts of any shape directly from computer graphics data without machining or any molds. 3D cold printing technology uses low-viscosity, high-solid-content metal powder slurry to replace 3D printing raw materials, and uses this slurry as the printing "ink" to realize layer-by-layer printing of metal parts blanks at room temperature or low temperature . [0003] Fusion welding 3D printing technology is a processing technology that combines welding methods with computer-aided design, that is, three-dimensional data provided by computers is used to control welding equipment, and then metal components are manufactured by layered scanning and surfacing welding method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F1/00B22F3/22B22F3/10B22F3/24C04B35/584C04B37/02B28B1/00B33Y10/00B33Y50/02B33Y70/00
CPCC04B35/584C04B37/021B22F3/1021B22F3/227B22F3/24B28B1/001B33Y10/00B33Y50/02B33Y70/00C04B2235/5436C04B2237/368C04B2237/403B22F2003/248B22F2998/10B22F1/107
Inventor 何鹏林铁松陈倩倩
Owner 哈尔滨邦定科技有限责任公司
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