4D forming method for nickel-titanium alloy member with deformation recovery rapid response and product

A nickel-titanium alloy, fast-response technology, applied in the direction of additive manufacturing, additive processing, etc., can solve the problems affecting the shape memory effect and superelasticity of formed parts, the change of phase transition temperature and phase transition interval, and the lack of versatility of nickel-titanium alloy and other problems, to avoid large phase transition temperature changes, increase the surface area, and avoid uncontrollable changes
CN112475319AActive Publication Date: 2021-03-12HUAZHONG UNIV OF SCI & TECH
6 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2021-03-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention belongs to the related technical field of metal additive manufacturing, and discloses a 4D forming method of a nickel-titanium alloy member with deformation recovery rapid response and aproduct. The 4D forming method of the nickel-titanium alloy member with deformation recovery rapid response comprises the following steps of S1, determining the deformation amount and deformation recovery speed requirements of the to-be-formed member, constructing a lattice structure SA and a lattice structure SB with different relative densities by adopting a three-period minimal curved surface,and performing Boolean differencing operation on the lattice structure SA and the lattice structure SB to remove the same parts in the lattice structures so as to obtain a shell lattice structure; S2, adjusting the parameters of the lattice structures SA and SB till the deformation amount and deformation recovery speed requirements of the to-be-formed member are met, and a three-dimensional modelis obtained; and S3, forming the three-dimensional model through selective laser melting so as to obtain the needed to-be-formed member. By means of the 4D forming method of the nickel-titanium alloymember with deformation recovery rapid response, the forming quality of the nickel-titanium alloy is effectively controlled, and the response speed of large deformation and deformation recovery of the obtained product is increased.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field related to metal additive manufacturing, and more specifically, relates to a 4D forming method and product of a nickel-titanium alloy component with rapid response to deformation recovery. Background technique

[0002] Additive manufacturing technology is an advanced manufacturing technology developed by the interdisciplinary integration of new material technology, manufacturing technology, and information technology. It is based on the CAD model of components, and can realize the forming of any complex structure through the principle of layer-by-layer forming and superposition. 4D printing is based on additive manufacturing, using smart materials or smart components, under the action of specific external physical fields, to make the shape, performance and function of the sample achieve predetermined controllable changes over time or space. In the present invention, the forming method used is laser selective...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More