Plastic composite material panel and manufacturing method thereof

A method of manufacturing a vehicle, the method comprising:

• forming a vehicle body frame comprising a front body portion and a rear body portion;
• forming a plastic composite material panel comprising an outer plate portion bent in a predetermined shape, a material filling portion that is thicker than the outer plate portion and integrally formed with an upper portion of the outer plate portion, and a first bonding flange integrally formed with a lower portion of the outer plate portion;
• adhesively bonding the outer plate portion to the vehicle body frame;
• and
• adhesively bonding the first bonding flange to a first flange portion extending from the front body portion of the vehicle body frame;
• wherein the plastic composite material panel is formed by:
• loading a plastic composite material onto a fixed die having a first molding surface of a flat shape for molding a material filling portion and a second molding surface for molding an outer plate portion, the plastic composite material having properties of a gel;
• combining a first movable die having a third molding surface for molding the material filling portion and a fourth molding surface for molding the outer plate portion and a second movable die having a molding groove for molding the material filling portion to the fixed die;
• forming the outer plate portion by the second and fourth molding surfaces;
• and
• integrally forming the material filling portion with the outer plate portion by the first and third molding surfaces and the molding groove.