Patent ID: 7279062

Claim:
A method for the production under elevated pressure and temperature of a laminate consisting of a pack with alternating metal layers and plastic bonding layers, wherein said plastic bonding layers contain fiber layers and a binder, comprising stacking a first series of layers on top of one another in a mold, then stacking at least a second series of layers on top of the first series of layers, forming the pack of layers such that at least one edge of the pack of at least one of the series is stepped back with respect to the other series, placing an auxiliary tool alongside the stepped-back series and on the other, non stepped-back series to form a gap between the stepped-back series and a side of the auxiliary tool facing said stepped-back series, raising the temperature and the pressure on the pack and the auxiliary tool such that said binder in the plastic bonding layers is made to flow and some of the binder present in the stepped-back series collects in said gap, sealing the fiber layers so as to prevent the penetration of moisture into the fibre layer and forming a substantially un-rounded edge, wherein the laminate is specifically used to form an aircraft body panel.