Manufacturing method of nickel-titanium alloy component, and nickel-titanium alloy component

A nickel-titanium alloy and manufacturing method technology, applied in the field of shape memory alloys, can solve problems such as poor universality, high structural design requirements, inability to achieve high energy absorption, convenient transportation, strong universality, self-recovery shape, etc.

Pending Publication Date: 2021-09-07
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the energy-absorbing material prepared by this method has low strength, poor impact resistance and poor applicability.
The third category is to adopt a unique buckling deformation structure design, relying on structural buckling deformation to store elastic energy to achieve the purpose of absorbing energy, and it can be restored after reverse force is applied, but this type of repeatable energy-absorbing structure is still

Method used

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  • Manufacturing method of nickel-titanium alloy component, and nickel-titanium alloy component
  • Manufacturing method of nickel-titanium alloy component, and nickel-titanium alloy component
  • Manufacturing method of nickel-titanium alloy component, and nickel-titanium alloy component

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] The manufacturing method of the nickel-titanium alloy member of the present embodiment comprises the following steps:

[0074] 1) Use Solidworks software to build a hexagonal honeycomb structure composed of hexagonal unit cells with a side length of 11mm and a wall thickness of 0.4mm arranged in 5×4. The height of the honeycomb structure along the printing direction is 10mm. Use the MaterializeMagics software to process the constructed model layer by layer, and then use the 3D printing filling software to set the printing parameters and strategies for each layer, obtain the printing process parameters of the model, and import them into the computer of the selective laser melting equipment.

[0075] 2) Take Ni after vacuum drying at 100°C for 8 hours 50.6 Ti 49.4Alloy powder (with a particle size distribution of 15-53 μm) is evenly spread on the nickel-titanium substrate, the substrate is pre-heated to 180°C, and the inert gas argon is introduced into the selective lase...

Embodiment 2

[0081] The manufacturing method of the nickel-titanium alloy member of the present embodiment comprises the following steps:

[0082] 1) Use Solidworks software to build a three-dimensional lattice structure composed of 4×4×4 octahedral unit cells with a rod diameter of 10 mm and a rod diameter of 0.4 mm, and use Materialize Magics software to analyze the constructed model. Layer processing, and then use the 3D printing filling software to set the printing parameters and strategies of each layer, obtain the printing process parameters of the model, and import them into the computer of the selected laser melting equipment.

[0083] 2) Take Ni after vacuum drying at 100°C for 8 hours 50.6 Ti 49.4 Alloy powder (with a particle size distribution of 15-53 μm) is evenly spread on the nickel-titanium substrate, the substrate is pre-heated to 180°C, and the inert gas argon is introduced into the selective laser melting equipment until the oxygen content in the chamber is below 500ppm...

Embodiment 3

[0087] The manufacturing method of the nickel-titanium alloy member of the present embodiment comprises the following steps:

[0088] 1) Use Solidworks software to construct a 5×5 triangular honeycomb structure composed of triangular unit cells with a side length of 10mm and a wall thickness of 0.4mm. The printing and filling software sets the printing parameters and strategies of each layer, obtains the printing process parameters, and imports them into the computer of the selected laser melting equipment.

[0089] 2) Take Ni after vacuum drying at 100°C for 8 hours 50.6 Ti 49.4 Alloy powder (with a particle size distribution of 15-53 μm) is evenly spread on the nickel-titanium substrate, the substrate is pre-heated to 180°C, and the inert gas argon is introduced into the selective laser melting equipment until the oxygen content in the chamber is below 500ppm; Spread powder on the substrate in a cyclical manner, and then laser melt until the last layer is processed and sto...

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Abstract

The invention provides a manufacturing method of a nickel-titanium alloy component, and the nickel-titanium alloy component. The manufacturing method comprises the following steps: 1) nickel-titanium alloy powder is pre-arranged to form a to-be-treated layer, and in the nickel-titanium alloy powder, the atomic percent of Ni element is 49.8%-50.8%, and the balance is Ti atoms; 2) laser melting treatment is carried out on the to-be-treated layer according to printing process parameters to form a target layer; 3) the step 1) to the step 2) are repeatedly executed, and the nickel-titanium alloy component is formed; in the laser melting treatment, the laser power ranges from 90 W to 150 W, and the laser scanning speed ranges from 400 mm/s to 1200 mm/s; and the nickel-titanium alloy component is of a porous structure. The method is simple and easy to operate, the raw materials and the manufacturing parameters of the nickel-titanium alloy component are limited, the prepared nickel-titanium alloy component can show high shape recovery after large deformation greater than or equal to 50%, and a high shape recovery rate can still be kept after multiple times of cyclic deformation.

Description

technical field [0001] The invention relates to a preparation method, in particular to a method for manufacturing a nickel-titanium alloy component and the nickel-titanium alloy component, and belongs to the technical field of shape memory alloys. Background technique [0002] Commonly used energy-absorbing materials such as aluminum foam and honeycomb sandwich panels can rely on local collapse during large deformations to undergo severe plastic deformation to absorb a large amount of energy, thereby protecting the target object. Therefore, they have been widely used in aerospace, automobile manufacturing and military weaponry. and other fields have been widely used. However, once these energy-absorbing materials are used, the internal collapse and fragmentation process is irreversible, and they need to be replaced after one-time use, which will generate huge waste of resources and lead to low operating efficiency of related equipment. With the development of scientific and...

Claims

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Application Information

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IPC IPC(8): B22F10/28B22F3/11B33Y10/00B33Y70/00B33Y80/00C22C19/03
CPCB22F10/28B22F3/1103C22C19/03B33Y10/00B33Y70/00B33Y80/00Y02P10/25
Inventor 杨英熊志伟郝世杰李仲瀚崔立山
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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