Patent Number: 8,871,126

Title: Manufacturing method for trumpet spar and other curved objects

Abstract: A method for producing an object of composite material comprising the steps of: placing one or several prepregs on a plane surface, forming a fiber stack; lifting over the fiber stack to a molding tool; downforming the fiber stack; curing the downformed fiber stack; where the method also comprises the step of: orienting the fiber directions so that all fibers, when the fiber stack is lifted over to the molding tool, will cross an edge of the molding tool only once.

Inventors: Krogager; Max (Linkoping, SE), Petersson; Mikael (Linkoping, SE), Weidmann; Bjorn (Borensberg, SE), Turesson; Ingemar (Linkoping, SE), Westerdahl; Anders (Linkoping, SE), Vaara; Jan (Linkoping, SE)

Assignee: Saab AB

International Classification: B29C 70/34 (20060101); B32B 27/04 (20060101)

Expiration Date: 2018-10-28 0:00:00