A semi -open pore grid super material and its additive manufacturing method

An additive manufacturing and semi-opening technology, applied in the field of metamaterials, can solve problems such as process constraints, achieve the effects of enhancing the control range, facilitating batch design and production, and strong control capabilities

Active Publication Date: 2022-08-05
HUAZHONG UNIV OF SCI & TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many process constraints faced by the SLM process

Method used

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  • A semi -open pore grid super material and its additive manufacturing method
  • A semi -open pore grid super material and its additive manufacturing method
  • A semi -open pore grid super material and its additive manufacturing method

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[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as there is no conflict with each other.

[0037] see Figure 1 to Figure 4 , the semi-perforated plate-lattice metamaterial in the present invention has more excellent mechanical properties than the traditional truss lattice structure. Compared with traditional plate-lattice metamaterials, spherical holes are introduced at the vertex and center of the unit cell, which not only can quickly remove raw materials such as residual metal powder ...

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PUM

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Abstract

The invention discloses a semi-opening plate lattice metamaterial and an additive manufacturing method thereof, belonging to the technical field of metamaterials, wherein the semi-opening plate lattice metamaterial is a face-centered cubic (FCC) structure, which is composed of periodic The unit cell is assembled, and the size of the unit cell can be adjusted as required; each unit cell structure is composed of eight identical hollow regular tetrahedrons combined according to a certain rule, and each regular tetrahedron is composed of four tetrahedrons. The thickness of the thin plate can be adjusted as required; the apex of each regular tetrahedron is opened to form a semi-opened structure, and the aperture size can be adjusted as required. The invention not only improves the degree of freedom of design, but also overcomes the process constraints faced by additive manufacturing technologies such as laser powder bed fusion and light curing, so that the structural parameters of the slab metamaterial can be regulated more flexibly, and the use of laser powder Additive manufacturing processes such as bed fusion, photocuring, etc. are used for shaping.

Description

technical field [0001] The invention belongs to the technical field of metamaterials, and more particularly, relates to a semi-perforated grid metamaterial and an additive manufacturing method thereof. Background technique [0002] Mechanical Metamaterials (MMs) refer to new materials with ultra-conventional or unconventional mechanical properties through ingenious design of microstructural units. Metamaterials can play an important role in many fields. However, because mechanical metamaterials usually have extremely complex microstructures, traditional material processing techniques cannot achieve their integrated forming, which severely limits their application and promotion. [0003] Additive Manufacturing (AM), as an emerging manufacturing technology in recent years, is based on the principle of discrete-stacking, driven by the three-dimensional data of the components, and integrates the components, thereby realizing the rapid manufacturing of components with complex mi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22F10/28B22F5/10B22F10/31B22F10/85B33Y10/00B33Y50/02B33Y80/00
CPCB22F10/28B22F5/10B22F10/31B22F10/85B33Y10/00B33Y50/02B33Y80/00Y02P10/25
Inventor 宋波王晓波张磊范军翔祁俊峰李敬洋史玉升
Owner HUAZHONG UNIV OF SCI & TECH
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