Patent ID: 7223318

Claim:
Method for the production of a laminate comprising metal layers and at least one fibre-reinforced bonding layer ( 5 – 7 ) that is located between the metal layers ( 1 – 4 ), which laminate has at least one region ( 9 ) that has a smaller number ( 3 , 4 , 7 ) of layers than the remainder of the laminate, comprising the following steps: forming a stack ( 8 ) comprising metal layers ( 1 – 4 ) and at least one fibre layer ( 5 – 7 ) impregnated with a binder, which stack ( 8 ) has a first series ( 11 ) of successive layers ( 1 , 2 , 5 , 6 ) with a different surface size than a second series ( 12 ) of successive layers ( 3 , 4 , 7 ), such that one ( 12 ) of the series of layers protrudes with respect to the other series ( 11 ) of layers, placing an auxiliary tool ( 14 ) at the protruding portion ( 19 ) of the protruding series ( 12 ) of layers alongside the other series ( 11 ) of layers, which auxiliary tool ( 14 ) has a make-up that is the same as that of said other series ( 11 ) of layers such that the auxiliary tool is made from the same material as and includes the same number of metal and fibre-reinforced layers as the other series ( 11 ) of layers, activating the at least one fibre-reinforced bonding layer ( 5 , 6 , 7 ) under elevated pressure and temperature with the formation of the laminate, and removing said auxiliary tool after the laminate is formed.