Pultrusion methods and arrangements for manufacturing a fibre-reinforced composite product
AssigneesAirbus Operations GmbH, Leichtbau-Zentrum Sachsen GmbH
InventorsWerner Hufenbach, Christian Garthaus, Florian Lenz, Thomas Behnisch, Bernhard Witschel
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Abstract
In a pultrusion method for manufacturing a fiber-reinforced composite product comprising reinforcing fibers embedded in a thermoplastic matrix material, the following is performed along a path of pultrusion: providing a preform; further downstream, inductively heating the preform to a processing temperature of the thermoplastic matrix material; and, further downstream, introducing the preform into a die and consolidating the preform by means of the die while the preform passes through the die.
Claims16
A pultrusion method for manufacturing a fibre-reinforced composite product comprising reinforcing fibres embedded in a thermoplastic matrix material, wherein along a path of pultrusion, the method comprising:
- providing a preform by forming the preform from strands of a semi-finished product, wherein the semi-finished product is a fully consolidated tape comprising the thermoplastic matrix material and the reinforcing fibres which are embedded in the thermoplastic matrix material;
- further downstream, inductively heating the preform to a processing temperature of the thermoplastic matrix material, the processing temperature being suitable for enabling subsequent consolidation of the preform, wherein the heat for heating the preform up to the processing temperature is introduced in a non-contact manner;
- and
- further downstream, introducing the preform into a die and consolidating the preform by the die while the preform passes through the die, in order to form the composite product, wherein the die is not actively heated or is actively cooled.
A pultrusion method for manufacturing a fibre-reinforced composite product comprising reinforcing fibres embedded in a thermoplastic matrix material, wherein along a path of pultrusion, the method comprising:
- providing a preform by forming the preform from strands of a semi-finished product, wherein the semi-finished product is a fully consolidated tape comprising the thermoplastic matrix material and the reinforcing fibres which are embedded in the thermoplastic matrix material;
- further downstream, introducing the preform into a first die and pre-compacting the preform by the first die while the preform passes through the first die;
- further downstream, heating the pre-compacted preform to a processing temperature of the thermoplastic matrix material, the processing temperature being suitable for subsequent consolidation of the preform, wherein the heating of the preform to the processing temperature is performed without surface contact;
- and
- further downstream, introducing the preform into a second die and consolidating the preform by the second die while the preform passes through the second die, in order to form the composite product, wherein the second die is not actively heated or is actively cooled.
Dependencies are inferred from the claim text.