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Honeycomb interlayer structure prepared through added material manufacturing method

A honeycomb interlayer and additive manufacturing technology, applied in the field of additive manufacturing, can solve the problems of inability to meet a wide range of high-performance lightweight structures, poor connection performance between panels and honeycomb stiffeners, and complex forming processes, and achieve fatigue resistance. Good, high forming dimensional accuracy, strong impact resistance

Inactive Publication Date: 2019-02-12
BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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  • Description
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Problems solved by technology

[0003] At present, the traditional honeycomb sandwich structure is mostly made of composite materials, and the panels and honeycomb ribs are made of metal or non-metallic materials, which are mostly formed by bonding, splicing or pressure processing. The forming process is complicated, the production cycle is long, and the cost is high; Poor connection between ribs
The traditional honeycomb sandwich structure can no longer meet the extensive demand for high-performance lightweight structures

Method used

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  • Honeycomb interlayer structure prepared through added material manufacturing method
  • Honeycomb interlayer structure prepared through added material manufacturing method
  • Honeycomb interlayer structure prepared through added material manufacturing method

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Embodiment Construction

[0022] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] This example proposes a honeycomb sandwich structure prepared by an additive manufacturing method. The honeycomb sandwich structure is prepared by a laser selective melting additive manufacturing method. Its structure is as follows Figure 1-4 shown. The honeycomb sandwich structure includes a first panel 1 , a honeycomb reinforcing rib 2 , a honeycomb cavity 3 , a second panel 4 and a powder cleaning process hole 5 . Wherein, the honeycomb reinforcing rib 2 is located between the first panel 1 and the second panel 4, and the first panel 1, the second panel 4 and the honeycomb reinforcing rib 2 are metallurgically bonded. The honeycomb reinforcing rib 2 has an irregular hexagonal structure, and a honeycomb cavit...

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Abstract

The invention belongs to the technical field of added material manufacturing, and in particular, relates to a honeycomb interlayer structure prepared through an added material manufacturing method inthe aerospace field. The honeycomb interlayer structure is prepared through a metal powder added material manufacturing method, and comprises a first panel, a honeycomb reinforcing rib, a honeycomb cavity, a second panel and a powder removing process hole, wherein the honeycomb reinforcing rib is positioned between the first panel and the second panel; the first panel, the second panel and the honeycomb reinforcing rib are in metallurgic bonding; the honeycomb cavity is formed in the honeycomb reinforcing rib; and the powder removing process hole is formed in the honeycomb reinforcing rib. Asthe first panel, the second panel and the honeycomb reinforcing rib are in metallurgic bonding, the honeycomb interlayer structure has the characteristics of high lightness degree, high impact resistance, excellent vibration resistance, excellent bending resistance, excellent fatigue resistance and high specific strength. As the honeycomb interlayer structure is prepared through the added materialmanufacturing method, the forming size precision is high, and the surface quality is excellent; and a non-assembled surface is once formed through added material manufacturing, so that the subsequentmachining is not needed, the material utilization rate is high, and the production efficiency is high.

Description

technical field [0001] The invention belongs to the technical field of additive manufacturing, and in particular relates to a honeycomb sandwich structure prepared by an additive manufacturing method, which is especially suitable for the aerospace field. Background technique [0002] With the rapid development of advanced aerospace technology, the demand for flight time and payload of the new generation of aerospace vehicles continues to increase, and affected by the energy environment, the demand for lightweight and high-performance aerospace vehicles is increasing. The lightweight of aerospace vehicles can be achieved in two ways: one is the application of lightweight materials, such as high-strength lightweight materials such as titanium alloys, aluminum alloys, carbon fibers, and ceramics; the other is lightweight structures, such as hollow sandwich / thin-walled reinforcement structure, hollow lattice structure, special-shaped topology optimization structure, multi-compon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/11B22F7/00B33Y10/00B33Y80/00
CPCB22F3/11B22F7/002B33Y10/00B33Y80/00
Inventor 吴冬冬李明亮钱远宏刘莹莹焦世坤宋国华许旭鹏
Owner BEIJING XINGHANG MECHANICAL ELECTRICAL EQUIP
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