Method and machine for cutting a covering element

A technology covering components and machines, which is applied in metal processing and other directions, can solve the problems of foreign matter in stacked layers, and achieve the effect of saving time and reducing risks

Pending Publication Date: 2022-04-26
SAFRAN NASEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, if overlay manufacturing techniques allow obtaining composite parts with excellent mechanical properties, there is a significant risk of foreign bodies being present in the stacked layers

Method used

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  • Method and machine for cutting a covering element
  • Method and machine for cutting a covering element
  • Method and machine for cutting a covering element

Examples

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Embodiment Construction

[0022] Generally, the invention applies to the cutting of plies or layers in a strip of material comprising a dry or pre-impregnated fabric layer and having a film on at least one face thereof which is cut simultaneously with the fabric layer. The invention has particular application in the manufacture of composite parts by covering fibrous layers pre-impregnated with matrix precursor resin.

[0023] The layers used in the production of composite parts by covering are previously cut out from usually pre-impregnated fabric layers, and this fabric layer is in the form of a strip covered with a release film on one or both sides, to avoid impregnation due to There is resin in direct contact with the bonding or adhesive layer. When the layer is covered on the covering mould, the operator peels off one or more film portions present on one or more faces of the covering element.

[0024] The inventors have found that the material of the release film present on the face or faces of th...

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Abstract

The invention relates in particular to a method for cutting one or more cover elements (220) from a material strip (100) comprising a fabric layer (103) comprising a film (101, 102) on at least one face. Each cover element (220) is defined along a determined contour (221) comprising at least one angle, each cover element being cut using a cutting blade. The fabric layer (103) and each film (101, 102) are cut along an arc (AR5-AR10) at each angle of the profile to obtain one or more cover elements (220) without overcut.

Description

technical field [0001] The invention relates to the manufacture of parts of composite material comprising fiber reinforcement formed by laying layers of fibers on a mould, and densifying from a matrix. Background technique [0002] The composite material part obtained by covering comprises a stack of layers cut into a fiber texture, usually in the form of strips. Textures include fibers (such as carbon, glass or Kevlar fibers) that are pre-impregnated with resin, either parallel to each other or woven. The sticky side of the prepreg texture is covered with a release film. [0003] Each layer of the component is defined by a geometric profile and the orientation of the fibers of the material within the surface defined by the profile. Layers may be made in one piece, but more usually consist of juxtaposed cut strips made in strips of pre-impregnated fabric. [0004] In general, the method for producing clad parts comprises the following operations: defining slits for each l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/54
CPCB29C70/545B26D5/00B26F1/38B26F1/3813B29C70/04
Inventor 鲍里斯·豪考特雨果·博伊斯特尔本杰明·珀辛埃里克·皮隆亚奈尔·拉巴特
Owner SAFRAN NASEL
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