Method of manufacturing a painted plastics material part for the automobile industry, the part including an orifice with a rounded edge, and a part obtained thereby

摘要

A method of manufacturing a painted part of plastic material for the automobile industry having an opening, including the steps of molding the part and then, in the following order: painting the part; after painting, punching the part without edge-rounding using a punch to obtain the orifice; and after punching and extracting the punch from the orifice, rounding the edge of the opening of the orifice to have a predetermined radius of curvature in a radial section across the edge.