| 摘要 |
The invention relates to a method for producing single- or multi-layered fibre preforms 1,17 by the TFP process with fibre strands 2-8, 18 which are aligned in particular such that they are oriented with the flux of force, wherein the fibre preforms 1, 17 have virtually any desired material thickness without troublesome backing layers and have virtually any desired surface geometry, comprising the steps of: laying and attaching the fibre strands 2 to 8, 18 on a flexible and elastic base 9, 19, in particular a base 9, 19 formed by an elastomer, with a fixing thread 10, 11 led through a sewing head to form the fibre preform 1, 17 and lifting the fibre preform 1, 17 off the elastic and flexible base 9, 19. The fibre preforms 1, 17 produced by means of the method according to the invention have a virtually optimum fibre alignment, that is to say substantially oriented with the flux of force, and no appreciable flaws in the arrangement of fibres, and consequently make it possible to create composite components that can withstand extreme mechanical stress and are at the same time lightweight, for example by subsequent processing in the RTM process.
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