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Nickel-titanium alloy and neodymium-iron-boron alloy multi-material and 4D printing method and application thereof
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A technology of nickel-titanium alloy and alloy materials, applied in nickel-titanium alloy and neodymium-iron-boron alloy multi-material and its 4D printing method and application field
Active Publication Date: 2022-01-11
CHINA UNIV OF GEOSCIENCES (WUHAN) +1
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However, due to its unique work hardening and springback effects, the traditional processing methods of Nitinol alloys are facing challenges, and at the same time, there are still certain limitations in the function of a single Nitinol alloy material
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Embodiment 1
[0031] The 4D printing method of nickel-titanium alloy and neodymium-iron-boron alloy multi-material comprises the following steps:
[0032] S1. Use Magics, UG, SolidWorks and other three-dimensional modelingsoftware to model the multi-materials to be printed in 4D, save it in STL format, and input it into the 4D printing device;
[0033] S2. The powder material of 4D printing equipment is neodymium-iron-boron alloy powder, and nickel-titanium alloy material plate is used as the substrate. After the substrate is ground and sandblasted, the alloy powder can be evenly spread on it, and then spread evenly on the substrate. A layer of NdFeB alloy powder with a thickness of about 50 μm closes the hatch of the 4D printing equipment;
[0034] S3. Turn on the gas circulation system and inject argon protective gas so that the oxygen content in the molding cavity of the 4D printing equipment is lower than 200ppm, and at the same time preheat the substrate to 200°C;
[0035] S4. When t...
Embodiment 2
[0040] The 4D printing method of nickel-titanium alloy and neodymium-iron-boron alloy multi-material comprises the following steps:
[0041] S1. Use Magics, UG, SolidWorks and other three-dimensional modelingsoftware to model the multi-materials to be printed in 4D, save it in STL format, and input it into the 4D printing device;
[0042] S2. The powder material of 4D printing equipment is neodymium-iron-boron alloy powder, and nickel-titanium alloy material plate is used as the substrate. After the substrate is ground and sandblasted, the alloy powder can be evenly spread on it, and then spread evenly on the substrate. A layer of NdFeB alloy powder with a thickness of about 50 μm closes the hatch of the 4D printing equipment;
[0043] S3. Turn on the gas circulation system and inject argon protective gas so that the oxygen content in the molding cavity of the 4D printing equipment is lower than 200ppm, and at the same time preheat the substrate to 200°C;
[0044] S4. When t...
Embodiment 3
[0049] The 4D printing method of nickel-titanium alloy and neodymium-iron-boron alloy multi-material comprises the following steps:
[0050] S1. Use Magics, UG, SolidWorks and other three-dimensional modelingsoftware to model the multi-materials to be printed in 4D, save it in STL format, and input it into the 4D printing device;
[0051] S2. The powder material of 4D printing equipment is neodymium-iron-boron alloy powder, and nickel-titanium alloy material plate is used as the substrate. After the substrate is ground and sandblasted, the alloy powder can be evenly spread on it, and then spread evenly on the substrate. A layer of NdFeB alloy powder with a thickness of about 50 μm closes the hatch of the 4D printing equipment;
[0052] S3. Turn on the gas circulation system and inject argon protective gas so that the oxygen content in the molding cavity of the 4D printing equipment is lower than 200ppm, and at the same time preheat the substrate to 200°C;
[0053] S4. When the...
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Abstract
The invention discloses a nickel-titaniumalloy and neodymium-iron-boronalloy multi-material and a 4D printing method and application thereof. The nickel-titaniumalloy and neodymium-iron-boron alloy multi-material is integrally manufactured and formed by adopting a nickel-titanium alloy material and a neodymium-iron-boron alloy material through 4D printing. The nickel-titanium alloy and the neodymium-iron-boron alloy which are nearly equal in atomic ratio are combined through different 4D printing processes, and after the neodymium-iron-boron alloy is magnetized, a multifunctional component with the shape memory effect and the magnetic effect at the same time is obtained. According to the 4D printing method for the nickel-titanium alloy and neodymium-iron-boron alloy multi-material, multifunctional components of different structures can be prepared, the characteristic of integrated forming is achieved, the multifunctional components can be used for a magnetically-driven solid-state refrigeration device based on the phase changeenergy absorption effect of the nickel-titanium alloy and the magnetic performance of the neodymium-iron-boron alloy, and meanwhile, the nickel-titanium alloy is used as a wire, magnetic induction lines of the neodymium-iron-boron alloy are cut by means of the deformation effect generated by thermal phase changeenergy absorption of the nickel-titanium alloy, and heat change in the environment can be converted into electric energy.
Description
technical field [0001] The invention relates to the technical field of additive manufacturing and advanced manufacturing, in particular to a multi-material of nickel-titanium alloy and neodymium-iron-boron alloy and its 4D printing method and application. Background technique [0002] Nickel-titanium alloys have excellent shape memory properties, superelastic properties, and damping properties due to their reversible thermoelastic martensitic phase transformation, and are therefore widely used in aerospace, medical devices, and many other fields. However, due to its unique work hardening and springback effects, the traditional processing methods of Nitinol alloys are facing challenges, and at the same time, there are still certain limitations in the function of a single Nitinol alloy material. Therefore, in order to expand the functional properties of NiTi alloys, new preparation methods and multi-materials based on NiTi alloys need to be studied urgently. [0003] NdFeB al...
Claims
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Application Information
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