Method for producing multilayer tailored fiber placement (TFP) preforms using meltable fixing fibers

US7942993B2 · kind B2 · utility

Assignee

• EADS Deutschland GmbH · DE

Inventors

• Andreas Gessler · Haar, DE
• Juergen Filsinger · Aying, DE

Key dates

• Filing date: Dec 10, 2001
• Grant date: May 17, 2011
• Expiry date: Oct 14, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29C70/226
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

In a method, multilayer tailored fiber placement (TFP) preforms of any desired thickness may be easily produced without fixing threads or intermediate layers interfering. Reinforcing fibers are sewn onto a substrate using a chemically or thermally meltable fixing thread thus resulting in the formation of a reinforcing fiber structure. The fixing thread firstly serves to fix the reinforcing fibers on the substrate and is subsequently melted so that the fixing thread disintegrates while pre-fixing the reinforcing fibers and may not influence the mechanical properties of the reinforcing fiber structure.