Airbus Operations Sl

Airbus Espana, S.l.

Jesús Manuel Martín Martín

Aquilino Garcia Garcia

Ignacio José Márquez López

Pedro Nogueroles Vines

The present invention relates to a jig for the manufacture, by means of injection and curing processes, of preforms of composite material frames for aircraft fuselages by using the RTM (resin transfer molding) technology. Two preforms are thus manufactured, one with a C shaped section and another with a L shaped section, together with the preforms of the stabilization ribs for stabilizing the web of the frames and the preform of the roving or staple fiber to cover the gap between the C shaped preform and the L shaped preform. Theses preforms are previously manufactured by any known process for manufacturing preforms. According to a second aspect, the present invention relates to a method of manufacturing composite material load frames for aircraft.

Method of manufacturing aircraft frames in a composite material

The present invention relates to a process for manufacturing composite ring frames for aeronautical fuselages by means of the application of the RTM technology to two preforms with C- and L-shaped sections manufactured using two tools () in the following steps: providing the material; hot-forming planar rectangular laminates (); hot-forming laminates of right angle section () on one part of right angle section of the first tool (), placing an elastic membrane () and applying a temperature and vacuum cycle; hot-forming the preforms into a C shape () and L shape () on a second curved tool () by deforming said laminates of right angle section () thereon, and applying a temperature and vacuum cycle. The invention also relates to said tools ().

Growing community of inventors

Madrid, Spain

Jesús Manuel Martín Martín