A kind of processing method of weak rigid semi-cured aramid paper honeycomb water guide groove for acoustic lining member

A processing method and technology of aramid paper, which can be used in metal processing, hydropower, climate sustainability, etc., can solve problems such as cutting damage, and achieve the effects of high-efficiency precision processing, good repeatability and obvious technical advantages

Active Publication Date: 2022-07-05
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: to overcome the deficiencies of the prior art, to propose a method for processing the honeycomb water channel of weakly rigid semi-cured aramid paper for acoustic lining components, and to solve the problem of the weak rigid semi-cured aramid paper honeycomb wall that is prone to cutting damage. Processing problems of U-shaped water guide groove

Method used

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  • A kind of processing method of weak rigid semi-cured aramid paper honeycomb water guide groove for acoustic lining member
  • A kind of processing method of weak rigid semi-cured aramid paper honeycomb water guide groove for acoustic lining member
  • A kind of processing method of weak rigid semi-cured aramid paper honeycomb water guide groove for acoustic lining member

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Effect test

Embodiment 1

[0057] The weakly rigid semi-cured aramid paper honeycomb water guide groove for the acoustic lining member described in the embodiment of the present invention is distributed along the honeycomb laterally on the honeycomb wall; the water guide groove is a nearly U-shaped groove, the groove depth is 4mm, and the groove width is 3mm. The paper material of the aramid paper honeycomb is Nomex aramid paper, the cell side length is 5.5mm, the honeycomb height is 20mm, and the honeycomb nominal density is 32kg / m 3 ; The water guiding groove is machined on the double-layer honeycomb walls of the glue joints along the longitudinal direction of the honeycomb, and is centered on the edge of each double-layer honeycomb wall.

[0058] The method for processing a weakly rigid semi-cured aramid paper honeycomb water guide groove for the acoustic lining member is characterized by comprising the following steps:

[0059] 1) The semi-cured aramid paper honeycomb is fixed on the flat operating ...

Embodiment 2

[0066] The weak rigid semi-cured aramid paper honeycomb water guide groove for the acoustic lining member described in the embodiment of the present invention is distributed along the honeycomb laterally on the honeycomb wall; the water guide groove is a nearly U-shaped groove, the groove depth is 4mm, and the groove width is 4mm. The paper material of the aramid paper honeycomb is Nomex aramid paper, the cell side length is 5.5mm, the honeycomb height is 24mm, and the honeycomb nominal density is 48kg / m 3 ; The water guiding groove is machined on the double-layer honeycomb walls of the glue joints along the longitudinal direction of the honeycomb, and is centered on the edge of each double-layer honeycomb wall.

[0067] The method for processing a weakly rigid semi-cured aramid paper honeycomb water guide groove for the acoustic lining member is characterized by comprising the following steps:

[0068] 1) The semi-cured aramid paper honeycomb is fixed on the flat operating ta...

Embodiment 3

[0075] The weak rigid semi-cured aramid paper honeycomb water guide groove for the acoustic lining member described in the embodiment of the present invention is distributed along the honeycomb laterally on the honeycomb wall; the water guide groove is a nearly U-shaped groove, the groove depth is 3mm, and the groove width is 2mm. The paper material of the aramid paper honeycomb is Nomex aramid paper, the cell side length is 3.67mm, the honeycomb height is 15mm, and the honeycomb nominal density is 48kg / m 3 ; The water guiding groove is machined on the double-layer honeycomb walls of the glue joints along the longitudinal direction of the honeycomb, and is centered on the edge of each double-layer honeycomb wall.

[0076] The method for processing a weakly rigid semi-cured aramid paper honeycomb water guide groove for the acoustic lining member is characterized by comprising the following steps:

[0077] 1) The semi-cured aramid paper honeycomb is fixed on the flat operating t...

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Abstract

The invention relates to a processing method for a weakly rigid semi-cured aramid paper honeycomb water guide channel for an acoustic lining member, belonging to the technical field of advanced structural composite material manufacturing, in particular to the processing technology of a drainage design sandwich composite material member. The method is the key technology to realize the manufacture of lightweight honeycomb sandwich composite components with water guiding grooves. The water guide groove is designed for drainage through the side walls of the sound-absorbing lining member panel and the honeycomb wall, and has high requirements for size and consistency; the prepreg paper honeycomb has weak rigidity, is difficult to process, and is prone to cutting damage. The invention designs a small-diameter, micro-blade and multi-tooth cutting tool, sets suitable processing parameters of low speed and low feed, and adopts the H-direction-WL surface compound feed milling groove processing technology to ensure that the aramid paper is in a reasonable state during the cutting process. , and then heat and solidify to form a paper honeycomb core material suitable for the curvature of the acoustic lining, accurately control the width and depth of the honeycomb water guide groove, and the consistency of each row of grooves, and realize the efficient and precise processing of the aramid paper honeycomb water guide groove.

Description

technical field [0001] The invention relates to a processing method for a weakly rigid semi-cured aramid paper honeycomb water guide channel for an acoustic lining member, belonging to the technical field of advanced structural composite material manufacturing, in particular to the processing technology of a composite material member containing a drainage design interlayer. The method is the key technology to realize the manufacture of lightweight honeycomb sandwich composite components with water guiding grooves. Background technique [0002] Aramid paper honeycomb material is an advanced composite material widely used in the aerospace industry. It is a honeycomb material with the characteristics of aramid fiber reinforced composite material. It is mostly co-cured with metal or fiber reinforced composite material skin to form a sandwich structure. The secondary load-bearing components and structural components used in launch vehicles and aircraft, such as rocket fairings, h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B26D3/06B26D7/27B26D7/01
CPCB26D3/06B26D7/27B26D7/01Y02T50/60
Inventor 杨智勇侯博史汉桥易凯尹亮孙建波左小彪蒋文革金鑫程雷
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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