US 12,350,916 B2
Draping a skin of thermoplastic material on a multicellular body
Foucault De Francqueville, Moissy-cramayel (FR); Rémi Roland Robert Mercier, Moissy-Cramayel (FR); and Naoufel Ben Salem, Moissy-cramayel (FR)
Assigned to SAFRAN, Paris (FR)
Appl. No. 18/727,591
Filed by SAFRAN, Paris (FR)
PCT Filed Jan. 5, 2023, PCT No. PCT/FR2023/050010
§ 371(c)(1), (2) Date Jul. 9, 2024,
PCT Pub. No. WO2023/135381, PCT Pub. Date Jul. 20, 2023.
Claims priority of application No. 2200250 (FR), filed on Jan. 13, 2022.
Prior Publication US 2025/0091336 A1, Mar. 20, 2025
Int. Cl. B32B 37/14 (2006.01); B32B 3/12 (2006.01); B32B 5/02 (2006.01); B32B 27/12 (2006.01); B32B 37/06 (2006.01); B32B 37/10 (2006.01); B32B 41/00 (2006.01)
CPC B32B 37/144 (2013.01) [B32B 3/12 (2013.01); B32B 5/02 (2013.01); B32B 27/12 (2013.01); B32B 37/06 (2013.01); B32B 37/10 (2013.01); B32B 37/146 (2013.01); B32B 41/00 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2305/18 (2013.01); B32B 2307/102 (2013.01); B32B 2607/00 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for manufacturing a panel comprising a plurality of partitions defining cells covered by at least one skin of thermoplastic material, the skin being formed by draping fibrous structures impregnated with a thermoplastic material on an upper edges of the partitions by automatic placement of fibers, the upper edges (121a) of the partitions and the fibrous structures being joined together with the aid of a localized heating device at the moment they are placed in contact,
the method being wherein the fibrous structures are draped with a draping tension on the interface between each edge of a partition and the deposited fibrous structure applying a shear stress of between 50% and 80% of the maximum shear stress before rupture of said interface.