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3D printing method of gradient material structure

A technology of 3D printing and gradient materials, which is applied in the direction of improving process efficiency and improving energy efficiency, so as to achieve the effect of fast processing and manufacturing

Inactive Publication Date: 2015-09-23
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current metal 3D printing is still limited to the printing of a single material structure, and the 3D printing method of mixing different materials in the same structure to print with gradient performance characteristics will be an innovative processing technology with great development potential

Method used

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  • 3D printing method of gradient material structure
  • 3D printing method of gradient material structure
  • 3D printing method of gradient material structure

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Embodiment approach

[0042] like figure 1 Shown is a schematic diagram of the principle of the 3D printing method of the gradient material structure of the present invention, where printing such as Figure 4 The gradient material structural member composed of four materials A, B, C, and D is shown as an example for illustration. Figure 4 Example printed components and layered schematic diagrams, this figure is only for illustration purposes, and is not intended to limit the present invention.

[0043] Figure 4 The structural part is a cylinder, which is divided into 10 layers, of which, 1, 2, 3, 4, 9, and 10 are single material layers; 5 is a longitudinal gradient material layer, gradually transitioning from material D to material C; 6 , 7 is the transverse gradient material layer, the material of the 6th layer gradually transitions from material B to material A from the inside to the outside, and the material of the 7th layer gradually transitions from material B to material C from left to ri...

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Abstract

The invention discloses a 3D printing method of a gradient material structure. Mixed printing of multiple materials can be achieved, and the structure having gradient gradually-changing mechanical property and physical property is processed. The device adopted in the 3D printing method mainly comprises a computer-control system, a powder spreading mechanism, a laser printing system and a printing worktable. When the 3D printing method is used for 3D printing, a gradient gradually-changing layer and a composite layer in a printing layer piece are needed to be further subdivided, and the material component information of layer pieces, selection information of the powder spreading device, powder spreading path information and printing path information are recorded. The information is utilized to control the powder spreading process and printing process in the printing forming process in real time. The 3D printing method is a novel method for quick processing and manufacture of functional gradient material structures and composite material structures and quick manufacture of complicated-shaped functional gradient material structures and composite material structures.

Description

technical field [0001] 3D printing and gradient functional materials manufacturing. Background technique [0002] 3D printing is a relatively popular processing and manufacturing technology in recent years. It has a faster processing speed and can process various parts with complex shapes. However, the current metal 3D printing is still limited to the printing of a single material structure, and the 3D printing method of mixing different materials in the same structure to print a 3D printing method with gradient performance characteristics will be an innovative processing technology with great development potential. [0003] Functionally graded material (FGM) refers to the continuous gradient transformation of the chemical composition, microstructure and atomic arrangement of the material from one side to the other, so that the properties and functions of the material are continuously transformed in a gradient. Due to the gradient performance characteristics of functionally...

Claims

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Application Information

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IPC IPC(8): B22F3/105B22F3/115
CPCY02P10/25
Inventor 熊肖磊周奇才吴青龙韩梦丹肖豪
Owner TONGJI UNIV
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