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
AssigneeCompagnie Plastic Omnium
InventorsBernard Bocaccio, Jerome Brizin, Marc Verwaerde, Francois Virelizier
Life of this patent
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Abstract
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.
Claims11
A method of manufacturing a painted part of plastic material for the automobile industry, the part including an orifice having an opening with a rounded edge presenting a predetermined radius of curvature when the orifice is seen in a radial section, the method consisting of molding the part, and then in subjecting it to the operations of punching, edge-rounding and painting in a predetermined order, the method being characterized in that predetermined order is as follows:
- a) first, painting;
- b) after painting, punching without edge-rounding using a punch to obtain the orifice;
- and
- c) after punching, rounding the edge of the opening of the orifice after extracting the punch from the orifice, the edge of the opening having a predetermined radius of curvature in a radial section across the edge.
A method of manufacturing a painted plastic part, the method being performed in the indicated order, the method comprising:
- first, painting the part after molding the part;
- after painting, punching an orifice into the part without edge-rounding using a punch;
- and
- after punching, rounding an edge of the orifice after extracting the punch from the orifice, the edge having a predetermined radius of curvature in a radial section traversing the edge.
Dependencies are inferred from the claim text.