Method for the production of an exterior trim panel for a movable body part and a corresponding exterior trim panel with reinforcement by back injecting fibre-reinforced material

A method for producing an outer paneling part for a door, a front hood, or a tailgate of a motor vehicle, the method comprising:

• using a forming die to form a metallic panel into a formed panel part having a three-dimensional shape, wherein the metallic panel has a sheet metal thickness of less than 0.6 mm;
• applying a plastic reinforcement to at least a portion of an inside of the formed panel part by back injection molding;
• and
• connecting the formed reinforced panel part to an inner structure produced from at least one of metal sheet or plastic, wherein the connecting occurs by at least one of folding or adhesive bonding.

An outer paneling part for a movable large body part of a motor vehicle, the outer paneling part comprising:

• a metallic panel part having a three-dimensional shape and a sheet metal thickness of less than 0.6 mm, the metallic panel part having an inside and an outside;
• a plastic reinforcement disposed to at least a portion of the inside of the metallic panel part by back injection molding;
• and
• an inner structure connected to the metallic panel part by at least one of folding or adhesive bonding of the metallic panel part, wherein the inner structure is produced from at least one of metal sheet or plastic.