Method for producing a thermoplastic fiber composite component

Patent metadata

Field	Value
Publication number	US-10384397-B2
Application number	US-201715459775-A
Country	US
Kind code	B2
Filing date	Mar 15, 2017
Priority date	Mar 15, 2016
Publication date	Aug 20, 2019
Grant date	Aug 20, 2019

Abstract

A method for producing a thermoplastic fiber composite component, in particular for an aircraft or spacecraft, has the following method steps: material-removing processing of a first face of a first plate, wherein the first plate comprises a thermoplastic fiber composite material and a local reduction in thickness of the first plate is made by the material-removing processing of the first face; positioning a second plate relative to the first plate such that the first face of the first plate is brought into alignment with a third face of the second plate; and joining the first plate to the second plate to form a single component, wherein the surface of the first face of the first plate is integrally bonded to the surface of the third face of the second plate.

First claim

The invention claimed is:

1. A method for producing a thermoplastic fiber composite component, comprising the following method steps:
material-removing processing of a first face of a first plate, wherein the first plate comprises a thermoplastic fiber composite material and a local reduction in a thickness of the first plate is made by the material-removing processing of the first face;
positioning a second plate relative to the first plate such that the first face of the first plate is brought into alignment with a third face of the second plate; and
joining the first plate to the second plate to form a single component, wherein the surface of the first face of the first plate is integrally bonded to the surface of the third face of the second plate, wherein the step of joining the plates into a single component comprises a step of pressing and wherein a portion of the first plate processed in a material-removing manner is deformed and integrally bonded to the third face of the second plate during the pressing step.

2. The method of claim 1 , wherein the first plate comprises at least one first fiber layer, some of which is removed during the material-removing processing.

3. The method of claim 1 , wherein the first plate comprises a first cover layer which is arranged on a second face opposite the first face and remains intact during the material-removing processing.

4. The method of claim 1 , wherein the first plate comprises a first cover layer which is arranged on a second face opposite the first face and remains intact during the joining process.

5. The method of claim 1 , wherein the second plate comprises a thermoplastic fiber composite material and a second cover layer which is arranged on a fourth face opposite the third face.

6. The method of claim 1 , wherein the first plate and the second plate are each provided with a plurality of fiber layers.

7. The method of claim 6 , wherein the third face of the second plate is processed in a material-removing manner in order to locally reduce a thickness of the second plate prior to the positioning process.

8. The method of claim 7 , wherein the thickness of the second plate is reduced symmetrically to the first plate.

9. The method of claim 8 , wherein the fiber layers and the cover layers of the plates are deformed during the pressing process into an arrangement having symmetry, with respect to a center line of a component contour, at portions in which there is no transition region from a thickness change.

10. The method of claim 1 , wherein the second plate is provided with a constant thickness.

11. A method for producing a thermoplastic fiber composite component, comprising the following method steps:
material-removing processing of a first face of a first plate, wherein the first plate comprises a thermoplastic fiber composite material and a local reduction in a thickness of the first plate is made by the material-removing processing of the first face;
positioning a second plate relative to the first plate such that the first face of the first plate is brought into alignment with a third face of the second plate, wherein the third face of the second plate is processed in a material-removing manner in order to locally reduce a thickness of the second plate prior to the positioning process, wherein the thickness of the second plate is reduced symmetrically to the first plate; and
joining the first plate to the second plate to form a single component by pressing, wherein the surface of the first face of the first plate is integrally bonded to the surface of the third face of the second plate,
wherein the first plate and the second plate are each provided with a plurality of fiber layers and wherein the fiber layers of the plates are deformed during the pressing process into an arrangement having symmetry, with respect to a center line of a component contour, at portions in which there is no transition region from a thickness change.

12. The method of claim 11 , wherein the first plate comprises at least one first fiber layer, some of which is removed during the material-removing processing.

13. The method of claim 11 , wherein the first plate comprises a first cover layer which is arranged on a second face opposite the first face and remains intact during the material-removing processing.

14. The method of claim 11 , wherein the first plate comprises a first cover layer which is arranged on a second face opposite the first face and remains intact during the joining process.

15. The method of claim 11 , wherein the second plate comprises a thermoplastic fiber composite material and a second cover layer which is arranged on a fourth face opposite the third face.

Assignees

• Premium Aerotec Gmbh

Inventors

• Neitzel Tim
• Bahnsen Jens
• Miaris Angelos
• Edelmann Klaus

Classifications

• B29C70/42

  for producing articles of definite length, i.e. discrete articles · CPC title

• B29C66/7212

  characterised by the composition of the fibres · CPC title

• B29C70/465

  and impregnating by melting a solid material, e.g. sheets, powders of fibres · CPC title

• B29C65/002 Primary

  Joining methods not otherwise provided for · CPC title

• B29C65/02

  by heating, with or without pressure · CPC title