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Method and device for moulding a curved part made from composite material and corresponding part

A composite material and composite strip technology, applied in the field of bending components, can solve the problems of low productivity, weak uniformity, poor mechanical properties, etc.

Active Publication Date: 2011-04-13
AIRBUS OPERATIONS GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Said solution requires a dedicated and complex automation system, i.e. expensive investment and lower productivity due to all these devices making the rate have to be reduced
[0009] Weaker uniformity in fanning the fibers used also results in poorer mechanical properties

Method used

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  • Method and device for moulding a curved part made from composite material and corresponding part
  • Method and device for moulding a curved part made from composite material and corresponding part
  • Method and device for moulding a curved part made from composite material and corresponding part

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0065] figure 1 An exemplary embodiment of a semi-finished product 1 is shown, allowing the manufacture of a composite strip for the method according to the invention.

[0066] The semi-finished product 1 is obtained by continuous winding of a rectangular base 2 with three strips 3, 4 and 5 consisting of unidirectional carbon fibers in axial direction, said strips being pre-impregnated with There are epoxy, rectangular, identical to each other and uncoiled from roll 6 continuously or semi-continuously. The fibers 7 are arranged along the longitudinal direction 8 of the tape and their wrapping angles are different, for example and as figure 1 As shown, said angles are respectively 30°, 90° and 120° relative to the axis 9 of the base.

[0067] The strip is thus formed from three superimposed strips, the angular arrangement of the fibers of which is oriented differently from the axis of the strip.

[0068] Then, the semi-finished product 1 is compacted at a specific temperatur...

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PUM

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Abstract

The invention relates to a method and device for moulding a curved part made from composite material and to the resulting part, in which the part is made from at least one composite band (24) formed by at least two laps (3, 4, 5) of unidirectional reinforcing fibres preimpregnated with resin and pre-compacted against one another. The band is applied longitudinally to a flexible silicone mandrel (13) by means of vacuum compaction in order to confer thereon the shape of the mandrel and the resulting band (24) is deposited on a heated metal tool (31) having a curve that complements the shape of the mandrel and forming the core (32) of a temperature and pressure application mould (26). The flexible mandrel is removed, polymerisation pressure and temperature are applied to the mould and the part is removed after cooling.

Description

technical field [0001] The invention relates to a method for molding curved components made of composite material, in particular components having an angled cross-section, for example Ω-, U-, Z-, C- or V-shaped. [0002] The invention also relates to an apparatus for molding such components with non-zero radii of curvature and corresponding curved components. Background technique [0003] The invention has a particularly important, but not exclusive, application in the field of molded parts made of composite materials used in aeronautics for realizing production components such as aircraft fuselages or the like. [0004] However, the invention can also be used in other fields where good strength is required, in particular all industrial fields and fields involving sports. [0005] Methods and devices for producing curved profiles made of composite materials are known. [0006] Said curved profile made of composite material is obtained by gradually laying the fabric impregn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/34B29C70/32B29C33/40
CPCB29C33/405B29K2883/00B29L2031/3082B29C70/342B29C70/44B29C70/545B29L2031/003B29D99/0003B29C2793/0063B29C2793/009B29C2793/0081Y10T428/24124
Inventor 吉勒斯·杜凯内杰罗姆·奥布里
Owner AIRBUS OPERATIONS GMBH