Process for manufacturing flanged tubular members from fiber composites

US5135596A · kind A · utility

Assignee

• Deutsche Forschungsanstalt Fur Luft-Und Raumfahrt E.V. · DE

Inventors

• Arno Pabsch · Braunschweig, DE
• Werner E. Strehlow · Wolfenbüttel, DE

Key dates

• Filing date: Feb 22, 1991
• Grant date: Aug 4, 1992
• Expiry date: Feb 22, 2011

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B29L2023/003
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

A process for manufacturing a fiber reinforced tubular member having flanges at opposite ends thereof includes the steps of applying a winding including a plurality of fiber strands in an uncured curable matrix to a core element having a pair of spaced outwardly extending spreader elements thereon so as to form a central winding portion and a pair of conical winding portions on the core element; applying a forming tool to the winding between the spreader elements, the forming tool having a tubular inner surface, opposite outwardly extending end faces and transition edges therebetween; applying resilient outward pressure to the winding so as to urge the winding against the forming tool along the transition edges; uniformly applying the fiber from the conical portions of the winding to the end faces of the forming too; and curing the matrix.