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.

Abstract: The invention relates to a method of fastening first and second thermoplastic parts of a motor vehicle, the first part having a protuberance projecting from a face and the second part having an engagement surface, the method consisting in bringing the second part into contact with the face of the first part, in heating the protuberance, and in plastically deforming the protuberance towards the second part so that the second part is gripped between the face of the first part and an end portion of the protuberance.

Abstract: The invention relates to a method of fastening first and second thermoplastic parts of a motor vehicle, the first part having a protuberance projecting from a face and the second part having an engagement surface, the method consisting in bringing the second part into contact with the face of the first part, in heating the protuberance, and in plastically deforming the protuberance towards the second part so that the second part is gripped between the face of the first part and an end portion of the protuberance.

Abstract: In an assembly of a bodywork part and a headlight glass for a motor vehicle that cooperate by elastic deformation, the headlight glass has an outline designed to be engaged in an opening in the bodywork part. The opening is defined by an outline in the bodywork part that is substantially complementary to the outline of the headlight glass. At least part of the outline of the bodywork part cooperates with the outline of the headlight glass by elastic deformation.

Abstract: The invention relates to an assembly of a bodywork part (10) and a headlight glass (12) for a motor vehicle, the headlight glass having an outline (14) designed to be engaged in an opening in the bodywork part, the opening being defined by an outline (16) in the bodywork part that is substantially complementary to the outline of the headlight glass, in which assembly at least part of the outline of the bodywork part (10) co-operates with the outline of the headlight glass (12) by elastic deformation.

Abstract: This assembly of a trim part of thermoplastic material for a motor vehicle with another part having a thin portion of thermoplastic material is such that the thin portion presents through orifices and the melting of the trim part together with the thin portion is localized solely at the outlines of the through orifices. In the assembly method, the melting of material is obtained by welding, by means of tangential vibrations of a bit in an ultrasound frequency range. The tangential vibrations are applied to the thin portion of the other part so as to form at least one through orifice in said part and so as to cause melting of said part together with the trim part at the outline of the orifice.

Abstract: The invention relates to a piece for placing against a face of a bodywork element, which element includes on said face a fastening projection made of plastics material. The piece has a fastening portion made of plastics material that is configured to form a tab which, when the piece for placing against the bodywork element is in position, extends parallel to the projection and can be secured to said projection by material melting. The invention also provides a bodywork element suitable for receiving such a piece, and an assembly constituted by the piece and the element.

Abstract: The invention provides a receiver structure for receiving a light unit having a glass for fitting to a motor vehicle fender, the fender and the glass including means for putting the glass of the light unit into a reference position relative to the fender, the receiver structure comprising: fastener means for fastening the receiver structure to the fender; and fastener means for fastening the light unit to the receiver structure, which means conserve the reference position of the glass relative to the fender as imposed by the means for putting the glass into a reference position. The invention also provides an outside module for a motor vehicle, a fender, and a method of mounting a light unit on a fender.

Abstract: The invention provides a receiver structure for receiving a light unit having a glass for fitting to a motor vehicle fender, the fender and the glass including means for putting the glass of the light unit into a reference position relative to the fender, the receiver structure comprising: fastener means for fastening the receiver structure to the fender; and fastener means for fastening the light unit to the receiver structure, which means conserve the reference position of the glass relative to the fender as imposed by the means for putting the glass into a reference position. The invention also provides an outside module for a motor vehicle, a fender, and a method of mounting a light unit on a fender.

Abstract: A method of manufacturing a painted part (3) of plastics material for the automobile industry, the part including an orifice (4) having an opening (5) with a rounded edge, the method consisting in molding the part, and then in subjecting it to the operations of punching, edge-rounding and painting a predetermined order, the method being characterized in that the predetermined order is as follows: a) painting; b) punching without edge-rounding using a punch (1) to obtain the orifice (4); and c) rounding the edge of the opening (5) of the orifice (4) after extracting the punch (1) from the orifice (4). A painted part made of plastics material for the automobile industry, including an orifice (4) having an opening (5) with its edge rounded to a radius of at least 0.9 mm.

Abstract: This assembly of a trim part of thermoplastic material for a motor vehicle with another part having a thin portion of thermoplastic material is such that the thin portion presents through orifices and the melting of the trim part together with the thin portion is localized solely at the outlines of the through orifices. In the assembly method, the melting of material is obtained by welding, by means of tangential vibrations of a bit in an ultrasound frequency range. The tangential vibrations are applied to the thin portion of the other part so as to form at least one through orifice in said part and so as to cause melting of said part together with the trim part at the outline of the orifice.

Abstract: The invention relates to a piece for placing against a face of a bodywork element, which element includes on said face a fastening projection made of plastics material. The piece has a fastening portion made of plastics material that is configured to form a tab which, when the piece for placing against the bodywork element is in position, extends parallel to the projection and can be secured to said projection by material melting. The invention also provides a bodywork element suitable for receiving such a piece, and an assembly constituted by the piece and the element.