Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

4D printing based temperature control self-deformation device and preparation method thereof

A technology of self-deformation and high-temperature deformation, which is applied in the direction of improving process efficiency, additive processing, and improving energy efficiency. It can solve problems such as limited phase transition temperature range, achieve small heat-affected zone, uniform material forming, and relieve stress mutation Effect

Active Publication Date: 2020-10-30
HUAZHONG UNIV OF SCI & TECH
View PDF8 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phase transition temperature range of NiTi binary alloy is limited. In the prior art, the 4D printing technology based on NiTi alloy is often only by changing the process parameters to realize the manufacture of functionally graded NiTi materials, which has little influence on the phase transition temperature.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 4D printing based temperature control self-deformation device and preparation method thereof
  • 4D printing based temperature control self-deformation device and preparation method thereof
  • 4D printing based temperature control self-deformation device and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0039] Specifically, as Figure 8 As shown, a method for preparing a temperature-controlled self-deformable device based on 4D printing of the present invention may include the following steps:

[0040] The first step is to use 3D modeling software to establish a 3D model of the self-deformable device, and divide the 3D model into regions according to the preset deformation process and functions. Generally, the part where the shape changes in the low temperature state is set as the low temperature deformation zone, the part that starts to deform at the low temperature and ends in the high temperature state is set as the transition zone, and the part that does not change at the low temperature but only changes at the high temperature state It is set as a high-temperature deformation zone (low temperature and high temperature in the present invention are relative concepts). However, in the present invention, it is not limited to the division of the above-mentioned three regions...

Embodiment 1

[0047] This embodiment 1 comprises the following steps:

[0048] 1) Use computer software to draw such as Figure 4 The hexagonal 3D model is shown, and the 3D model is divided into three regions according to the preset deformation process and function. Figure 4 Among them, 1 is the low-temperature deformation zone, 2 is the transition zone, and 3 is the high-temperature deformation zone. Export the STL file format and slice the model.

[0049] 2) Import the model into the processing system, and select the printing method as strip partition plus interlayer rotation, wherein the partition width is 4mm, and the interlayer rotation angle is 67°. Input selected process parameters in different areas, and finally generate processing paths and files.

[0050] 3) Put the screened and dried powder into the printing equipment, vacuumize the forming chamber, inject high-purity argon gas, and preheat the nickel-titanium substrate.

[0051] 4) In the forming process, partition manufac...

Embodiment 2

[0055] This embodiment 2 comprises the following steps:

[0056] 1) Use computer software to draw such as Figure 4 The hexagonal 3D model is shown, and the 3D model is divided into three regions according to the preset deformation process and function. Figure 4 Among them, 1 is the low-temperature deformation zone, 2 is the transition zone, and 3 is the high-temperature deformation zone. Export the STL file format and slice the model.

[0057] 2) Import the model into the processing system, and select the printing method as strip partition plus interlayer rotation, wherein the partition width is 4mm, and the interlayer rotation angle is 67°. Input selected process parameters in different areas, and finally generate processing paths and files.

[0058] 3) Put the screened and dried powder into the printing equipment, vacuumize the forming chamber, inject high-purity argon gas, and preheat the nickel-titanium substrate.

[0059] 4) In the forming process, partition manufac...

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

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of 4D printing additive manufacturing, and discloses a 4D printing based temperature control self-deformation device and a preparation method thereof. The preparation method comprises the following steps that S1, a three-dimensional model of a self-deformation device is set up, and areas obtained through division at least comprise a low-temperature deformation area, a transition area and a high-temperature deformation area; S2, laser printing parameters of the three areas are set, nickel and titanium based memory alloy powder is used for carrying out divisionforming on the three areas through the laser selective melting technology, an intelligent deformation part is obtained, and nickel-titanium-zirconium ternary alloy powder serves as the nickel and titanium based memory alloy powder correspondingly adopted by the transition area and the high-temperature deformation area; and S3, the intelligent deformation part is folded, and the temperature control self-deformation device is obtained. Zr is introduced into a nickel and titanium alloy to serve as a third component, and compared with the manner that in the prior art, manufacturing of function gradient NiTi materials can be achieved only by changing process parameters, the excitation temperature point of the NiTi based self-deformation device can be flexibly adjusted and controlled accordingto requirements.

Description

technical field [0001] The invention belongs to the field of 4D printing additive manufacturing, and more specifically relates to a temperature-controlled self-deformation device based on 4D printing and a preparation method thereof. Background technique [0002] During the design and use of self-deformable devices, different parts have different deformation and performance requirements. The more functions and deformation steps of the device, the more excitation points are required and the more complex the structure is. At present, self-deformable devices mainly use traditional methods such as casting and sputtering to manufacture "smart materials", and realize deformation through the characteristics of the stimulus response of the smart material itself. The components manufactured in this way often have a single structure, mainly in the form of films, wires, strips or blocks. If complex deformation is involved, sensors are often needed to sense environmental changes, and ...

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

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B22F3/105B22F3/24C22C19/03B33Y10/00B33Y30/00
CPCB22F3/003B22F3/24B22F2003/247B33Y10/00B33Y30/00C22C19/03Y02P10/25
Inventor 刘洁张媛玲宋波禹林闫春泽史玉升
Owner HUAZHONG UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com