Abstract: A tool for forming a panel including a core area, at which plies sandwich a core, and a trim area surrounding the core, at which the plies are bonded together, is provided and includes a body having a surface on which the panel is formable, the surface including core and trim portions for respective correspondence with locations of the core and trim areas of the panel, a border between the core and trim portions defining a surface feature displaced from a plane of the core portion, a lock disposable proximate to the surface feature to increase a pre-bonding friction between the plies at the surface feature and an assembly to apply bonding pressure to the plies and the lock at least at the core and trim areas.

Abstract: A thermoplastic matrix airframe structure section includes a multitude of thermoplastic matrix frame members and a multitude of thermoplastic matrix beam members which form a substructure, which receives a thermoplastic matrix inner cap grid structure, a thermoplastic matrix outer cap grid structure, and a thermoplastic matrix skin which are in-situ co-bonded to the substructure to significantly strengthen and unify the substructure.

Abstract: The composite molding apparatus includes a rigid base member and a complementary semi-rigid mold member or “black bag” caul plate having a sieve member formed therein. The sieve member layer of the semi-rigid mold member engages pins which extend from the sandwich core to limit penetration into the semi-rigid mold member to a predetermined depth. The semi-rigid mold member is supported relative to the rigid mold member by the pins to provide uniform pressure transfer to the composite article during a high pressure co-cure molding process without crushing the sandwich core.

Abstract: The composite molding apparatus includes a rigid base member and a complementary semi-rigid mold member or “black bag” caul plate having a sieve member formed therein. The sieve member layer of the semi-rigid mold member engages pins which extend from the sandwich core to limit penetration into the semi-rigid mold member to a predetermined depth. The semi-rigid mold member is supported relative to the rigid mold member by the pins to provide uniform pressure transfer to the composite article during a high pressure co-cure molding process without crushing the sandwich core.