Saab Ab

Anders Westerdahl

Ingemar Turesson

Mikael Petersson

Björn Weidmann

Max Krogager

Jan Andersson

Per Hallander

Jan Vaara

Lars Löfgren

Mats Folkesson

Jan-Erik Lindbäck

Nils-Gunnar Jaktlund

Per Eliasson

Torbj&ouml;rn Bergehed

Jan-Ole Karlsson

Johnny Karlsson

Bo Tolf

Sverker Schultz

Eva Andersson

Per Linnerstedt

Jan-Ole Brewler

Roger Amnered

Jan Erik Lindbäck

A forming device and a method of manufacture of a fillet of plastic for aircraft assemblies. The fillet has a pre-determined profile for filling a cavity of a structural element. The fillet is formed using a former of a forming device. The method includes applying at least one blank of a base material of plastic between at least two opposed press beds of the former and at least one of the press beds including an elongated groove. At least one press bed is towards another press bed, until the press beds are in position for completed compression of the fillet. Each groove for forming of the fillet generates a fillet in correspondence with the pre-determined profile. The press beds are separated from each other for releasing the formed fillet. The formed fillet is removed from the former. The formed fillet is applied in the cavity.

Method of manufacture of fillets for aircraft assemblies or the like and a forming device

A method for producing an object of composite material comprising the steps of:

Manufacturing method for trumpet spar and other curved objects

A thermoforming apparatus for forming a blank into a composite article. The thermoforming apparatus includes a forming tool. A forming member forms the blank over the forming tool. A first chamber is arranged for containing the blank. A second chamber is separated from the first chamber by the forming member. A first air circulator is configured to circulate air in the first chamber for achieving a heat distribution to the blank. The first air circulator includes a controllable valve member. The apparatus also includes a second air circulator. A method for forming a blank during circulation of air in a first chamber.

Thermoforming apparatus

A method of attaching a first portion and a second portion to each other. An adhesive is exposed to a low temperature in order to obtain a non-tacky adhesive. The non-tacky adhesive is arranged between the two portions. The adhesive is cured. Use of adhesive according to the method.

Method of attaching elements by bonding

A method for manufacturing a hollow load-bearing beam structure of fiber-reinforced composite material. The method includes preparing a first lay-up of a first plurality of layers, and a second lay-up of a second plurality of layers. The first and second lay-ups are positioned on different sides of a mandrel and formed to a beam structure by bending the lay-ups against the mandrel, such that the side edges of the respective layers of the first and second lay-ups are arranged as offset butt joints in the circumferential direction of the formed beam structure.

Method for manufacturing beams of fiber-reinforced composite material

In a method and a tool for forming an elongate, hollow article of a fiber-reinforced composite material one end of an article laminate applied to a tool bar is placed in engagement with or is supported by an anvil of the tool so as to control the direction of longitudinal movement of the cured article relative to the tool bar during the cooling and dismantling phase.

Method and tool for forming an elongate, hollow article of a fiber-reinforced composite material

A helical tool (&#x2033;) having a rigid outer helical support surface () is used as support for a non-rigid material for producing a hollow elongated member onto and as an integral part with a surface member () in manufacturing of a surface member having at least one hollow elongated stiffening member integral therewith.

Use of a tool and a method for producing a surface member

A method and a tool component for forming in an article of fiber-reinforced composite material at least one locally placed, sharply curved portion. A separate, substantially rigid pressure-transferring element configured with a profile corresponding to the at least one curved portion is placed over the laminate at the location of the at least one locally placed, sharply curved portion of the mold surface. A flexible membrane placed over the laminate and over outer, separated surfaces of the pressure-transferring element is evacuated to depress the laminate to fully conform to the shape of the mold surface.

Method of manufacturing an article of fiber-reinforced composite material

The invention concerns a method for reinforcing a double-shell structure in which a cellular core () is arranged between a first shell () and a second shell (). In the method according to the invention, at least one cavity is formed in the double-shell structure from an opening in the first shell into the cellular core () so that the cavity substantially extends through the cellular core () to the second shell. Fixative () is injected into the cavity. A stiff bar () is introduced into the cavity, whereupon excess fixative () is allowed to pass out of the cavity. Finally, the fixative left in the cavity is cured.

Method for reinforcing a double-shell structure

The invention refers to a plant and a holding device in connection with heat treatment of articles ( ), which is at least partly manufactured in a thermosetting composite material. The holding device, which is comprised by the plant, includes a base element ( ), and intermediate element ( ), which rests on the base element ( ), and at least a support member ( ), which is fixable to the intermediate element ( ) and arranged to support said article ( ) on the intermediate element during the heat treatment. The intermediate element ( ) is manufactured in a material which has a neglectable thermal extension at least up to a temperature level, at which the heat treatment is intended to take place. Furthermore, the intermediate element ( ) is displaceably positioned on the base element ( ).

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Linköping, Sweden

Anders Westerdahl