METHOD FOR REPAIRING SANDWICH PANELS MADE OF COMPOSITE MATERIALS INVOLVING THE CREATION OF A CORE OR OF A MOULD USING STEREOLITHOGRAPHY

摘要

A method for repairing sandwich panels made of composite materials following impact that has damaged the core of the panel is provided. The method involves acquisition of a numerical model of the shape of the damaged zone then use of a stereolithography method based on the numerical model to create a replacement core or a mould in which this replacement core will be moulded, followed by creation of replacement component comprising this core, then the instillation of this component which is fitted into an opening cut in the sandwich panel around the damage, and finally attachment of the replacement component to the panel.

主权项

1. A method for repairing a sandwich panel including a core receiving a skin on each side of the core, the method comprising:
acquisition of a digital model of a damaged area of the sandwich panel; making by a 3D printing method, from the digital model, a replacement core and/or a replacement skin, or a mould in which the replacement core will be moulded and/or a mould in which the replacement skin will be moulded; making a replacement part comprising the replacement core and/or the replacement skin; fitting the replacement part into an opening in the sandwich panel proximate the damaged area; and fastening the replacement part onto the sandwich panel.