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Method for manufacturing article made of composite material

A composite material and component technology, which is applied to the components of pumping devices for elastic fluids, pump components, household components, etc., can solve the problem that the last layer of fibers is not very suitable.

Active Publication Date: 2013-03-06
SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From a mechanical strength point of view, this makes the final layer of fibers in these areas not very suitable

Method used

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  • Method for manufacturing article made of composite material
  • Method for manufacturing article made of composite material
  • Method for manufacturing article made of composite material

Examples

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Embodiment Construction

[0025] The invention applies to the manufacture of bypass turbojet fan casings, examples of which are figure 1 shown. The engine includes—from upstream to downstream, along the direction of gas flow—a front fan 2 at the engine inlet, an intake compressor, a high-pressure compressor 3, a combustion chamber 4, and high-pressure and low-pressure turbines 5 . The fan 2 is driven to rotate by a turbine (turbine BP) inside the fan casing 6 . The fan case forms the volume of air that enters the engine interior. A portion of said air constitutes the main air flow, which is guided inside the engine to be successively compressed by the intake compressor and the high-pressure compressor. The air enters the combustion chamber 4 where its energy is enhanced by the combustion of fuel. The resulting gas is expanded in the subsequent turbine stage 5 and then injected. The other part of the air constitutes the auxiliary air flow, which is injected into the atmosphere directly or after meet...

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Abstract

The invention relates to a method for manufacturing an article made of a composite material consisting of a polymer matrix reinforced by a fibrous structure. The method includes the steps of placing the fibrous structure (10) on a substrate (20) forming a moulding surface, covering the structure with a mating mould (30), and compacting said structure by moving the surface of the mating mould toward the surface of the substrate. The method is characterised in that the substrate (20) includes a cylindrical portion (21) and a wall (22, 23) positioned radially relative to the cylindrical portion (21), and the mating mould includes two portions (31, 32 or 33) which are mobile relative to one another and which are moved toward the axis of the cylindrical portion (21) and towards the radial wall (22, 23) of the substrate (20), respectively. The invention can be used in particular for manufacturing the fan casing of a turbojet engine.

Description

technical field [0001] The invention relates to the field of composite materials comprising a polymer matrix reinforced with a fibrous structure, and in particular to the use of such materials in the manufacture of aeroengine or turbine components. Background technique [0002] In the field of aviation, there is a need to reduce the weight of engine components while maintaining a high level of mechanical properties of these components. In multi-flow turbine engines, the fan case, which forms the shape of the air duct extending into the engine and houses the fan rotor inside, is currently made of composite materials. It consists of upstream and downstream ferrules with radial and transverse external flanges for connection and mounting to other parts of the engine, including the upstream air intake profile and the downstream intermediate case. The case supports the various components and should be able to keep objects from breaking off the fan blades. [0003] The method of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/46B29C70/54F04D29/52
CPCB29C33/22B29C70/46B29C33/306B29C45/0005F04D29/542F04D29/526F04D29/023B29L2031/7504B29C70/543F05D2300/43F05D2300/603F05D2230/21
Inventor 迈卡·古梅尔亚恩·马哈尔安东尼·菲利普
Owner SN DETUDE & DE CONSTR DE MOTEURS DAVIATION S N E C M A
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