Loading patent…
AssigneeAstrium GmbH
InventorsBrigitte Defoort, Dominique Lacour, Olivier Le-Couls
Estimating the term…
The invention relates to a method of assembling pre-impregnated plies by local isolated polymerization of the assembly region (30) under the action of a radiation to which the resin of the prepreg is sensitive. The assembly method makes it possible in particular to produce very large sized gossamer structures (7) in the form of a concertina-folded tube which is deployed by injecting pressurized gas once in space then stiffened by polymerization under the effect of the same radiation. The pylon concerned (7) thus comprises two structural elements (10, 20) secured end to end while at the same time maintaining its flexibility and firmness qualities.
Method of assembling a first structural element (10) and a second structural element (20) along a predetermined assembly length, each of the two elements comprising at least one prepreg ply (12, 22) polymerisable at least partially under a predetermined radiation, the method comprising:
Method according to claim further comprising the folding of an end portion (10′) of the first element (10) before the assembly with the second element (20).
Structure comprising a first element (10, 110, 140, 170) and a second element (20, 120, 140, 170), each comprising a prepreg ply (12, 22) sensitive to a polymerisation radiation, wherein the first and the second element (10, 20, 110, 120, 140, 170) are superimposed at the level of a junction zone (30, 130, 150, 180), characterised in that the junction zone (30, 130, 150, 180) comprises an assembly strip in which the first and second prepregs (12, 22) are bonded by cross polymerisation at the level of discrete points (32).
Irradiation mask (40) comprising an irradiation part (42) comprising discrete radiation passage points.
Dependencies are inferred from the claim text.