The composite sheet for stamping, comprising a main sheet and at least one lining sheet blank in thickness on -

摘要

According to the invention, the bonding system is chosen, which is applied and, if necessary, crosslinked, so as to satisfy the criteria are: - a critical energy release rate in mode i (pull) greater than 1500 j / m2, - a critical energy release rate in mode ii (shear) greater than 2000 j / m2 is thus possible to easily be drawn composite sheets and to the parts formed does not require any cooking, after shaping.