IP Library Granted Patent US 10,286,613
Granted Patent B2
US 10,286,613 · App. 15/285,218 · Granted May 14, 2019

Layered construction of a fibrous body

Inventors: Christian Weimer (Munich, DE); Franz Engel (Munich, DE)
Assignee: Airbus Defence and Space GmbH
B29C70/30B29B11/16B29C64/00B29C64/165B29C65/02B29C70/305B29C70/40B29L2031/731
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Quick Facts
Patent No.
US 10,286,613
App. No.
15/285,218
Granted
May 14, 2019
Kind
B2
Abstract

A method to produce a fibrous body that includes structures crosslinked in a fluid-permeable manner. The method includes constructing the fibrous body in layers by alternately applying a fiber-matrix material to a layer substrate and fusing each applied layer of the fiber-matrix material. The fiber-matrix material contains a matrix material and a plurality of short fibers and/or fiber particles.

Claims (25)

1. A method for producing a fibrous body, comprising:

constructing the fibrous body in layers by alternately applying a fiber-matrix material to a layer substrate; and

fusing each applied layer of the fiber-matrix material to the layer substrate,

wherein the fibrous body comprises a plurality of crosslinked structures and wherein the fiber-matrix material contains a matrix material and a plurality of short fibers and/or fiber particles, and

wherein applying the fiber-matrix material comprises bathing at least one retaining matter in the fiber-matrix material, wherein the retaining matter comprises at least one vertically taut fiber.

2. The method according to claim 1 , wherein the fiber-matrix material is applied by a micro-nozzle.

3. The method according to claim 1 , wherein the fiber-matrix material is or comprises a thermoplastic.

4. The method according to claim 3 , wherein the thermoplastic is a polymer.

5. The method according to claim 1 , wherein applying the fiber-matrix material comprises blowing the matrix material and the short fibers or fiber particles onto each layer substrate or comprises blowing the matrix material or the short fibers or fiber particles onto each layer substrate.

6. The method according to claim 1 , wherein applying the fiber-matrix material comprises flooding the entire surface of the layer substrate with the fiber-matrix material, which is locally solidified in a targeted manner.

7. The method according to claim 1 , comprising changing the fiber-matrix material when alternately applying and fusing layers.

8. The method according to claim 1 , wherein fusing comprises heating using one, two or more heat sources.

9. The method according to claim 1 , wherein fusing is carried out by one or more of light and hot gas.

10. The method according to claim 1 , wherein the layer substrate comprises an electrically conductive material, and wherein fusing comprises connecting at least part of the layer substrate to a current source.

11. The method according to claim 10 , wherein applying the fiber-matrix material comprises one or more of spraying the material onto the layer substrate heated by the flow of current and immersing, in the fiber-matrix material, at least part of the layer substrate heated by the flow of current.

12. A method for producing a component, comprising:

producing a fibrous body, wherein producing the fibrous body comprises constructing the fibrous body in layers by alternately applying a fiber-matrix material to a layer substrate and fusing each applied layer of the fiber-matrix material to the layer substrate, wherein the fibrous body comprises a plurality of crosslinked structures and wherein the fiber-matrix material contains a matrix material and a plurality of short fibers and/or fiber particles; and

infiltrating the fibrous body with one or more of a thermosetting matrix and a thermoplastic matrix,

wherein applying the fiber-matrix material comprises bathing at least one retaining matter in the fiber-matrix material, wherein the retaining matter comprises at least one vertically taut fiber.

13. The method according to claim 12 , further comprising curing the infiltrated fibrous body by hot pressing and/or in an autoclave.

14. A method for producing a fibrous body, comprising:

constructing the fibrous body in layers by alternately applying a fiber-matrix material to a layer substrate; and

fusing each applied layer of the fiber-matrix material to the layer substrate,

wherein the fibrous body comprises a plurality of crosslinked structures and wherein the fiber-matrix material contains a matrix material and a plurality of short fibers and/or fiber particles, and wherein the layer substrate comprises an electrically conductive material, and

wherein fusing comprises connecting at least part of the layer substrate to a current source.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 14, 2016
From: WEIMER, CHRISTIAN; ENGEL, FRANZ
To: AIRBUS DEFENCE AND SPACE GMBH
Reel/Frame 040732/0909 →
Priority Claims (1)
EP 15 188 309 · Oct 5, 2015 · regional
Continuity (1)
Related Publication 20170095982A1 · Apr 6, 2017
Cited By (1)
US 12,686,172