Method and Device for Producing a Three-Dimensional Fiber Composite Component

Patent metadata

Field	Value
Publication number	US-2017190122-A1
Application number	US-201715460250-A
Country	US
Kind code	A1
Filing date	Mar 16, 2017
Priority date	Sep 18, 2014
Publication date	Jul 6, 2017
Grant date	—

Abstract

A method for producing a three-dimensional fiber composite component with fiber bundles which are shaped from a rod- or strand-like initial shape into a predetermined three-dimensional shape of the component by way of a shape defining apparatus. The shape defining apparatus has at least one shaping channel having a first curvature along its longitudinal direction, which is predetermined for the fiber composite component, and forms at least one leading edge. The fiber bundles are pressed against the at least one leading edge of the shaping channel, thereby adopting the predetermined first curvature.

First claim

What is claimed is:

1 . A method for producing a three-dimensional fiber composite component, the method comprising the acts of:
providing a shape defining apparatus having at least one reshaping channel with a first curvature predetermined for the fiber composite component along a longitudinal direction, the first curvature configured as at least one leading edge; pressing fiber bundles having a rod-shaped or strand-shaped initial form against the at least one leading edge of the reshaping channel such that the fiber bundles adopt the predetermined first curvature.

2 . The method according to claim 1 , wherein a shaping edge is configured along the reshaping channel on a bottom side, the method further comprising the act of:
pressing the fiber bundles against the shaping edge such that the fiber bundles adopt a predetermined second curvature for the fiber composite component.

3 . The method according to claim 1 , wherein the fiber bundles are impregnated with resin.

4 . The method according to claim 1 , wherein the fiber bundles are surrounded by thermoplastic.

5 . The method according to claim 2 , further comprising the act of:
joining together and finishing in a press tool the fiber bundles provided with the first and second curvature in order to form the three-dimension fiber composite component.

6 . The method according to claim 1 , wherein the provided shape defining apparatus comprises a plurality of reshaping channels, in which a plurality of fiber bundles are reshaped at a same time.

7 . The method according to claim 6 , wherein
the plurality of reshaping channels of the shape defining apparatus have different first curvatures and/or leading edges with different second curvatures, whereby the plurality of fiber bundles are reshaped at the same time into different three-dimensional shapes for the three-dimensional fiber composite component.

8 . The method according to claim 1 , wherein the reshaped fiber bundles are encapsulated with thermoplastic and/or thermosetting.

9 . A shape defining apparatus for rod-shaped or strand-shaped fiber bundles, comprising:
a mold shaping apparatus having at least one reshaping channel, wherein the at least one reshaping channel has a first curvature along a longitudinal direction, which is predetermined for a fiber composite component, and forms at least one leading edge.

10 . The shape defining apparatus according to claim 9 , wherein
on a bottom side of the reshaping channel, a shaping edge is configured against which the fiber bundles are pressable and, in being pressed, are reshaped so as to adopt a curvature corresponding to that of the shaping edge.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Michl Sebastian
• Konrad Oleg
• Hogger Thomas
• Kolbinger Michael

Classifications

• B29L2031/7739

  Curved shaped · CPC title

• B29K2105/08

  of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns · CPC title

• B29C33/42 Primary

  characterised by the shape of the moulding surface, e.g. ribs or grooves · CPC title

• B29C70/46 Primary

  using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs · CPC title

• B29C70/24 Primary

  oriented in at least three directions forming a three-dimensional [3D] structure · CPC title