Method for manufacturing by injection, a part made of a plastic material including a technical face incorporation a reinforcing element

A method for manufacturing a part made of a plastic material having a first technical face and a second face, in a tooling comprising a first shell for forming the first face, the first shell provided with imprints for forming technical members of the first technical face and a second shell intended for forming the second face, the first shell and the second shell delimiting a cavity forming the part, wherein the method comprises the following steps of:

• providing a porous reinforcing element that comprises a woven textile having an opening coefficient of 50%, wherein the woven textile is a polyamide-based textile having a basis weight of about 60 g/m2;
• drape-molding the porous reinforcing element on the first shell, the reinforcing element covering a surface of the first shell as well as the imprints that are used to form the technical members;
• retaining the porous reinforcing element on the first shell in a non-mechanical fashion;
• bringing the first shell and the second shell close to each other;
• injecting a plastic material to fill the cavity, the plastic material passing through the porous reinforcing element as it fills the imprints in order to form the technical members;
• separating the first and second shells and;
• and
• ejecting the plastic part.