Light multifunctional lattice structure and laser additive material manufacturing method thereof

A lattice structure, multi-functional technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as difficult to realize pre-embedding, heat transfer, internal space sealing, etc., and achieve reduction of processing technology procedures, good Tensile resistance and high processing efficiency

Inactive Publication Date: 2018-05-15
CAPITAL AEROSPACE MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional lightweight structures of spacecraft are mostly foam and honeycomb core structures, especially the honeycomb sandwich structure has the advantages of high specific stiffness and specific strength, but the internal space of these cores is closed, and it is not easy to realize pre-embedding, heat transfer, etc. multifunctional requirements

Method used

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  • Light multifunctional lattice structure and laser additive material manufacturing method thereof
  • Light multifunctional lattice structure and laser additive material manufacturing method thereof
  • Light multifunctional lattice structure and laser additive material manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as Figure 1 to Figure 3 Shown, a kind of lightweight multifunctional lattice structure of the present invention, this lattice structure design is as follows:

[0033] 1) Lattice structure unit

[0034] a) Determine the filling side length L and the filling diameter a;

[0035] b) completing the lattice central pillar whose side length is L and whose diameter is a;

[0036] c) According to the angle of 53.5° with the bottom surface, four inclined pillars are designed in the lattice, the length of the inclined pillar is 1.732L, the diameter is a, and the spatial position is the body diagonal of a tetrahedron whose side length is L;

[0037] 2) Lattice structure unit filling

[0038] a) Determine the position to be filled in the component model as required;

[0039] b) Filling the lattice structural units described in step 1) in a three-dimensional software to form a component model.

[0040] The above-mentioned lattice structure unit, the side length of the uni...

Embodiment 2

[0042] A kind of lightweight multifunctional lattice structure and its laser additive manufacturing method described in the present invention, its described lattice structure design is as follows:

[0043] 1) Lattice structure unit

[0044] c) Determine the filling side length L and the filling diameter a;

[0045] d) completing the lattice central pillar whose side length is L and whose diameter is a;

[0046] c) According to the angle of 53.5° with the bottom surface, four inclined pillars of the lattice are designed, the length of the inclined pillars is 1.732L, the diameter is a, and the spatial position is the body diagonal of a tetrahedron whose side length is L;

[0047] 2) Lattice structure unit filling

[0048] a) Determine the position to be filled in the component model as required;

[0049] b) Carry out the filling of the lattice structural unit described in step 1) in the 3D software, and then carry out triangular faceting to form a component model and import i...

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Abstract

The invention provides a light multifunctional lattice structure. The lattice structure is designed as follows: according to lattice structure units, the filling side length L and the filling diametera are determined, lattice center struts with the side length being L and the diameter being a are completed, four inclined struts are latticed according to the design that the included angle betweenthe inclined struts and the bottom face is 53.5 degrees, the inclined struts are 1.732 L long, the diameter of the inclined struts is a, and the spatial positions of the inclined struts are body diagonals of tetrahedrons with the side length being L, ;2, the lattice structure units are filled, and the positions needing filling in a component model are determined according to requirements; fillingof the lattice structure units is carried out in three-dimensional software, and the component model is formed. Compared with the traditional lattice manufacturing and processing technology, procedures are remarkably reduced, lattice structures with any side lengths can be formed, the time and cost for designing and processing molds are saved, the preparation period of products is short, and the processing efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of laser additive manufacturing, and relates to a lightweight multifunctional lattice structure and a laser additive manufacturing method thereof. Background technique [0002] The traditional lightweight structures of spacecraft are mostly foam and honeycomb core structures, especially the honeycomb sandwich structure has the advantages of high specific stiffness and specific strength, but the internal space of these cores is closed, and it is not easy to realize pre-embedding, heat transfer, etc. Versatile requirements. As a new type of lightweight heat-resistant integrated structure, the lattice structure not only has a load-bearing function, but also its open and connected space is easy to realize the integration of load-bearing and thermal control, stealth, energy absorption, actuation, energy storage, and damping. multifunctional properties. As a layer-by-layer stacking manufacturing technology, lase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20
Inventor 董鹏陈济轮梁晓康陈靖罗志伟何京文田彩兰侯谊飞张朋旭
Owner CAPITAL AEROSPACE MACHINERY
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