Methods and systems for forming curved composite charges for stringers

A method for forming a curved composite charge, the method comprising:

• positioning a composite charge on a processing surface of a pallet and over a cavity of the pallet, wherein:
• the composite charge comprises a hat portion and flange portions, monolithic with and interconnected by the hat portion, and
• the pallet comprises a plurality of pallet portions, wherein each pallet portion of the plurality of pallet portions is rotatably coupled to at least one other pallet portion of the plurality of pallet portions,
• the cavity extends through each pallet portion of the plurality of pallet portions, and
• the composite charge is positioned over and contacts, each pallet portion of the plurality of pallet portions;
• contacting the hat portion of the composite charge with a die such that the die is aligned with the cavity, the cavity is defined by a cavity surface;
• folding at least the hat portion to conform to the die;
• inserting the die into the cavity such that the hat portion is positioned between the die and the cavity surface and conforms to each of the die and the cavity surface;
• and
• rotating two or more pallet portions of the plurality of pallet portions relative to each other around one or more axes, thereby forming a curved composite charge.