A method for preparing foamed aluminum materials based on three-dimensional imaging technology and 3D printing technology
A 3D printing and 3D imaging technology, applied in the field of metal foam materials, can solve problems affecting the performance of parts, uneven distribution of holes, and difficulty in preparing large-scale products, so as to improve structural strength and structural accuracy, and improve compressive strength. Effect
Active Publication Date: 2020-09-25
SHANGHAI UNIV
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Problems solved by technology
Traditional manufacturing uses methods such as melt foaming to make foamed aluminum, but the foamed aluminum products made by this method have the defects of uneven distribution of pores (affecting the performance of parts) and difficulty in preparing large-scale products.
Method used
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Embodiment 1
[0036] Place the French baguette on the rotating platform in the industrial CT chamber, and use X-ray three-dimensional imaging technology to scan the pore structure of the baguette to obtain the topological structure of the baguette;
[0037] Select the topological structure of the baguette with a porosity similar to that of the comparison material (common aluminum foam material prepared by melt foaming method) (5 mm × 5 mm × 5 mm), and use the three-dimensional analysis software Avizo to analyze the CT reconstruction data of the baguette After processing and analysis, it is concluded that the porosity of the topological structure is 62.7%, and the average hole diameter is 6.24mm, and the three-dimensional model of the baguette cube is used as the structural primitive;
[0038] Use the design software of 3D Systems-Prox200 printing equipment on the computer to design the 3D solid model of the part to be printed, analyze the force of the 3D solid model, and calculate the stress d...
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Abstract
The invention belongs to the technical field of foamed metal materials, and in particular relates to a method for preparing foamed aluminum materials based on three-dimensional imaging technology and 3D printing technology. The invention imitates the pore structure of non-metallic porous materials (such as baguette) by using the bionic principle, and uses CT scanning technology combined with 3D printing technology to complete the reproduction of the pore structure of non-metallic porous materials such as baguettes in aluminum foam materials. And compared with the traditional method, the method of the invention significantly improves the compressive strength of the foamed aluminum material, creating conditions for the improvement of the structural strength and structural precision of the foamed aluminum material.
Description
technical field [0001] The invention relates to the technical field of foamed metal materials, in particular to a method for preparing foamed aluminum materials based on three-dimensional imaging technology and 3D printing technology. Background technique [0002] Additive manufacturing (3D printing) technology uses a high-energy laser beam as a heat source to regionally melt and rapidly solidify metal powder or wire, and two-dimensionally layer the geometric structure of the material to be manufactured, and print it layer by layer. Print out the three-dimensional material structure layer by layer. Due to its special manufacturing process, this method can directly print components with complex topological structures, such as metal foam materials with special pore structures, etc. At present, the materials used in additive manufacturing technology have covered titanium alloys, superalloys (such as nickel-based alloys and cobalt-based alloys), aluminum alloys, refractory allo...
Claims
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IPC IPC(8): B22F3/11B33Y10/00
CPCB22F3/11B33Y10/00B22F2999/00B22F10/28B22F10/38B22F10/80Y02P10/25
Inventor 王江任忠鸣时令陈超越聂建文刘伟赵睿鑫
Owner SHANGHAI UNIV