Saab Ab

Jan Andersson

Mikael Petersson

Per Hallander

Anders Westerdahl

Björn Weidmann

Ingemar Turesson

Tommy Grankäll

Claes Rudqvist

Jan-Erik Lindbäck

Roger Amnered

Per Eliasson

Torbj&ouml;rn Bergehed

Jan-Ole Karlsson

Johnny Karlsson

Bo Tolf

Sverker Schultz

Torbjörn Alenby

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 tool assembly including a male tool including an inner shape tool including a bag having a connection connectable to a depressurization source for providing a vacuum in the bag such that beads therein form a body of firm cohesion providing the inner shape tool rigid. The male tool further includes a flexible, hollow curing support arranged around the rigid inner shape tool, the inner shape tool is arranged to be removable from the flexible, hollow curing support by rupturing the vacuum.

Method and apparatus for manufacturing of an article including an empty space

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 ( ).

Holding device for holding an article and a plant for heat treatment of an article

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Linköping, Sweden

Jan Andersson