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Additive manufacturing method of metal glass lattice structure composite material part

A lattice structure, metallic glass technology, applied in the field of additive manufacturing, can solve the problems of difficult processing, warping deformation cost, poor stability, etc., and achieve the effect of improving comprehensive mechanical properties, improving hard and brittle characteristics, and enhancing stability

Active Publication Date: 2022-06-24
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The present invention provides a method for additive manufacturing of metallic glass lattice structure composite material parts to solve the problem of high brittleness and poor stability of existing bulk metallic glass materials. The traditional mechanical processing method is difficult to process, and the existing additive manufacturing process for forming metallic glass parts has problems such as crystallization of some materials, warping deformation and high cost.

Method used

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  • Additive manufacturing method of metal glass lattice structure composite material part
  • Additive manufacturing method of metal glass lattice structure composite material part
  • Additive manufacturing method of metal glass lattice structure composite material part

Examples

Experimental program
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Effect test

Embodiment 1

[0049] This embodiment provides a method for manufacturing a metal-glass composite part with a body-centered cubic lattice structure, including the following steps:

[0050] Step 1. Prefabricate Fe-based (Fe-Co-Cr-Mo-C-B-Y) metallic glass powder with a particle size of 30-50 μm;

[0051] Step 2. On the premise of ensuring the strength of a given Fe-based metallic glass part, improve the plasticity of the part, and build a face-centered cubic microscopic element geometric model based on topology theory, such as figure 1 As shown, the homogenization method is used to predict the performance of the metal glass face-centered cubic lattice structure model, optimize the parameters of the microstructure unit, and determine the geometric parameters and arrangement direction of the microstructure unit;

[0052] Step 3. Use Blender software to build a model of a metal glass part, in this case a square block. Then, according to the designed parameters, a face-centered cubic microscopic ...

Embodiment 2

[0058] This embodiment provides a method for manufacturing a metal-glass composite part with a face-centered cubic lattice structure:

[0059] The overall process is similar to the operation steps for the manufacture of metal-glass composite parts with body-centered cubic lattice structure, the only difference is that the model of the lattice skeleton is different. For face-centered cubic lattice structure metallic glass composite parts, the lattice structure should refer to Image 6 model.

Embodiment 3

[0061] The present embodiment provides a method for manufacturing a metal-glass composite part with a random skeleton structure:

[0062] The overall process is similar to that of the body-centered cubic lattice structure metal-glass composite part fabrication, the only difference is the model of the skeleton structure. For metal-glass composite parts with random structure, the skeleton structure should be randomly generated by the program. Ideally, the skeleton structure and the shape of the formed part are as follows Figure 7 shown. It should be noted that random skeleton structures are usually not used as independent structures, and the description in this example is only to show the morphology of such structures.

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Abstract

The invention relates to an additive manufacturing method of a metal glass lattice structure composite material part, and belongs to the technical field of additive manufacturing. A selective laser melting technology is adopted, laser process parameters are regulated and controlled, metal of different microscopic structures is formed at different positions, a lattice structure framework for regulating and controlling mechanical properties is embedded in a metal glass part, and forming of the metal glass and lattice framework integrated composite material part based on the same material is achieved. The lattice structure is applied to metal glass forming, microstructure units of a lattice structure model are established based on the topology theory, performance prediction is conducted on the lattice structure model through a homogenization method, and lattice structure parameters are optimized; by means of the method, large metal glass parts in any shape and with lattice structures can be directly formed in a near-net mode, the plasticity of the metal glass parts can be remarkably improved, the comprehensive mechanical property of the formed parts is improved, and the stability of the metal glass parts is enhanced.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a method for manufacturing a metal glass lattice structure part by a selective laser melting technology. Background technique [0002] Metal glass, also known as glassy metal or amorphous metal, has both the advantages of metal and glass, and overcomes their respective disadvantages. The strength is higher than that of steel, the hardness is higher than that of high-speed tool steel, and it has certain toughness and rigidity. The developed bulk metallic glass material systems include Pd-based, Fe-based, Zr-based, Mg-based, Al-based, Ti-based, Cu-based, Ce-based, La-based and so on. Because of its excellent mechanical properties, corrosion resistance, soft magnetic properties, and high saturation magnetic induction, metallic glass is widely used in the manufacture of key components such as automobiles, ships, aerospace, military occasions, and consumer e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F10/28B22F10/85B33Y10/00B33Y50/02B33Y80/00B22F10/38B22F10/364B22F10/366
CPCB22F10/28B22F10/85B33Y10/00B33Y50/02B33Y80/00B22F10/38B22F10/364B22F10/366C22C2200/02Y02P10/25
Inventor 吴文征郑奥都李桂伟张政李学超周怪明李轲孙浩岚赵继任露泉朱景荣
Owner JILIN UNIV
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