Fiber Placement and Production Method

Patent metadata

Field	Value
Publication number	US-2017305041-A1
Application number	US-201715647102-A
Country	US
Kind code	A1
Filing date	Jul 11, 2017
Priority date	Jun 3, 2014
Publication date	Oct 26, 2017
Grant date	—

Abstract

A fiber application tool for a fiber placement and production method has a fiber contact surface area, which has a fiber contact surface for applying and/or pressing the fibers onto a work surface. The tool further includes an activation device for activating an adhesive, matrix, resin, or binder material provided at the fibers by means of an activation radiation so that the fibers are tacked onto the work surface. The fiber contact surface area for the activation radiation may be transparent and that the activation device may be designed so to guide and/or deliver the activation radiation through the transparent fiber contact surface area to the fibers to be pressed by the fiber contact surface.

First claim

1 . A fiber placement method for the automatic placement of fibers onto a work surface, comprising:
a) applying and pressing fibers provided with adhesive, binder, matrix, or resin material by a transparent fiber contact surface; and b) guiding activation radiation through the fiber contact surface for activating the adhesive, binder, matrix, or resin material.

2 . The fiber placement method according to claim 1 , wherein step b) occurs before step a).

3 . The fiber placement method according to one of claim 1 ,
wherein applying and pressing fibers by a fiber application and/or compaction roller comprises applying and pressing fibers by a fiber application and/or compaction roller, which has at least one transparent circumferential surface area, and wherein guiding activation radiation comprises guiding activation radiation through the transparent circumferential area.

4 . The fiber placement method according to claim 3 , further comprising delivering the fibers to the fiber application and/or compaction roller and redirecting the fibers to a redirection area until a contact with the work surface is established,
wherein the activation radiation is guided in a focusing manner through the redirection area just prior to contacting the work surface onto the fibers.

5 . A production method for producing matrix composite work pieces comprising:
producing a preform by carrying out an automatic fiber placement method according to claim 1 ; and producing the work piece from the preform.

Assignees

• Airbus Defence & Space Gmbh

Inventors

• Engel Franz

Classifications

• B29C35/0888

  using transparant moulds · CPC title

• B29C35/0805 Primary

  using electromagnetic radiation · CPC title

• B29C70/38

  Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns {(application heads for tyres B29D30/28)} · CPC title