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A method of 3D printing niobium alloy skirt of ceramic matrix composite material
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A composite material and 3D printing technology, applied in the field of ceramic matrix composite material niobium alloy skirt, can solve the problems of unsuitability for mass production, poor repeatability, low production efficiency, etc., and achieve strong repeatability, low cost, and processing cycle. short effect
Active Publication Date: 2017-02-01
TAICANG PAIOU TECH CONSULTING SERVICE
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Problems solved by technology
[0006] The above two inventions have solved the problem of connecting ceramic matrix composites and metals to a certain extent, but the preparation process of chemical vapor deposition method has poor accuracy, poor repeatability, slow speed, and a large amount of exhaust gas is generated, polluting the environment, and molds are used for production. Low efficiency, not suitable for mass production
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Embodiment 1
[0023] A method for 3D printing a niobium alloy skirt of a ceramic matrix composite material, comprising the following steps:
[0024] (1) Measure the geometric size of the given nozzle, design the specific position of the niobium alloy, use CAD drawing software to draw the three-dimensional solid model of the niobium alloy skeleton, and use the discrete program to slice the model to obtain the multi-layer two-dimensional solid model Profile, and save it as an STL file, and transfer the data of the STL file to the selective laser melting rapid prototyping system;
[0025] (2) Evenly mix the mixed powder of niobium and tungsten and the organic binder into the powder cylinder of the 3D printer, and pass protective gas into the forming cylinder;
[0026] (3) Cleaning, activating, and heating the surface of the ceramic matrix composite nozzle with chemical solvent;
[0027] (4) Put the given nozzle on the worktable at the position corresponding to the center of the niobium alloy ...
Embodiment 2
[0033] A method for 3D printing a niobium alloy skirt of a ceramic matrix composite material, comprising the following steps:
[0034] (1) Measure the geometric size of the given nozzle, design the specific position of the niobium alloy, use CAD drawing software to draw the three-dimensional solid model of the niobium alloy skeleton, and use the discrete program to slice the model to obtain the multi-layer two-dimensional solid model Profile, and save it as an STL file, and transfer the data of the STL file to the selective laser melting rapid prototyping system;
[0035] (2) Evenly mix the mixed powder of niobium and molybdenum and the organic binder into the powder cylinder of the 3D printer, and pass protective gas into the forming cylinder;
[0036] (3) Cleaning, activating, and heating the surface of the ceramic matrix composite nozzle with chemical solvent;
[0037] (4) Put the given nozzle on the worktable at the position corresponding to the center of the niobium allo...
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Abstract
The invention provides a ceramic matrix composite niobium alloy skirt section 3D printing method. The method is characterized by comprising the following steps that (1) CAD is used for designing a 3D spray pipe entity model, a multi-layer 2D profile is obtained by carrying out slice processing on the model, the profile is saved as an STL file, and data are sent to a laser melting rapid forming system; (2) mixed powder of niobium and other metal and organic adhesives are mixed and placed in a powder jar; (3) the surface of a spray pipe is cleaned, activated, heated and preprocessed; (4) shielding gas is led into; (5) a workbench is preheated; (6) the laser scanning speed, sintering temperature and the like are designed, and laser light is controlled for sintering according to the first section information; (7) the step (6) is carried out repeatedly until a 3D entity part is stacked out; (8) high-temperature roasting is carried out. The method achieves technology integration highly, the machining period is short, no die is required, batch production can be achieved, powder oxidation is prevented due to the shielding gas, and the obtained spray pipe has excellent integrated performance.
Description
technical field [0001] The invention relates to a method for a niobium alloy skirt of a ceramic matrix composite material, in particular to a method for 3D printing a niobium alloy skirt of a ceramic matrix composite material. [0002] technical background [0003] Ceramic matrix composites are a type of composite material that is composited with ceramics and various fibers. The ceramic matrix has excellent properties such as high temperature resistance, high strength, high stiffness, relative light weight, and corrosion resistance, but its fatal weakness is its brittleness. , when the material is in a state of stress, it will produce cracks, or even break and cause the material to fail. After being combined with fibers, the performance is greatly improved, and it is widely used in rockets and other aerospace and military fields. However, the working conditions of many aviation products are extremely harsh, so higher requirements are placed on the performance of materials or ...
Claims
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Application Information
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