EP3740366A1 - Piece hybride en materiau composite comprenant au moins un insert metallique et procede de fabrication d'une telle piece - Google Patents
Piece hybride en materiau composite comprenant au moins un insert metallique et procede de fabrication d'une telle pieceInfo
- Publication number
- EP3740366A1 EP3740366A1 EP19700525.9A EP19700525A EP3740366A1 EP 3740366 A1 EP3740366 A1 EP 3740366A1 EP 19700525 A EP19700525 A EP 19700525A EP 3740366 A1 EP3740366 A1 EP 3740366A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- relief
- mold
- reliefs
- composite material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C45/14221—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure by tools, e.g. cutting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
- B29C70/682—Preformed parts characterised by their structure, e.g. form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/72—Encapsulating inserts having non-encapsulated projections, e.g. extremities or terminal portions of electrical components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/88—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
- B29C70/882—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding
- B29C70/885—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced partly or totally electrically conductive, e.g. for EMI shielding with incorporated metallic wires, nets, films or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/001—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material
- B62D29/004—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material the metal being over-moulded by the synthetic material, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14065—Positioning or centering articles in the mould
- B29C2045/14131—Positioning or centering articles in the mould using positioning or centering means forming part of the insert
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles
- B29C2045/14327—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles anchoring by forcing the material to pass through a hole in the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3002—Superstructures characterized by combining metal and plastics, i.e. hybrid parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
- B62D25/2054—Load carrying floors for commercial vehicles
Definitions
- Hybrid parts comprising a plastic or composite material and at least one metal insert, such as, for example, vehicle load floors, or electric vehicle battery trays, as well as motor vehicles comprising such hybrid parts.
- the invention also relates to the methods of manufacturing such hybrid parts.
- hybrid parts comprising one or more metal elements (inserts) in plastic or composite bodies.
- the composite materials comprise a matrix of thermoplastic material or thermosetting material, loaded with reinforcing elements such as, for example, glass fibers or carbon fibers. This is particularly the case for some rear load floors of vehicles.
- Such floors are, for example, described in WO2014131967. They consist of a composite material part and a metal peripheral edge intended to be welded to the metal rear part of a motor vehicle underbody. This metal edge (insert) is partially embedded in the composite material during the manufacture of the floor.
- WO0187568 discloses a method of manufacturing a molded piece from a plastic / metal compound by internal high pressure forming of metal tubular semi-product.
- the semi-finished product is placed in a forming tool at least in two parts, the forming space of which corresponds to the outer contour of the part to be molded.
- the forming tool is closed.
- the tubular semifinished product is insulated at its open end sides by means of a pressure-proof packing and is formed in said forming space from at least one front side by means of a pressure-proof packing.
- a polymer melted under high pressure.
- the molten polymer is compressed in the semi-finished product by injection molding using a conventional injection molding aggregate. Once the molten polymer is sufficiently solidified at the walls of the metal molded part, said molten polymer is removed from said part so as to obtain a metal molded part provided with a plastic lining.
- EP0594131 discloses a vehicle subframe composite structure having improved structural performance through the use of closed structure profiles, the orientation of the reinforcing fibers, and the selected use of inserts in compared to comparable steel structures.
- the inserts have fastening means the fiber reinforcement helps to ensure their positioning during the injection of the polymer resin. The implementation of such a solution therefore involves the use of fiber reinforcement.
- a molding process of a part comprising at least one partially molded insert is known from WO20171 15026.
- the proposed solution involves the use of specific molds having a system for positioning and holding the insert in the mold. It would be interesting to find simpler solutions to maintain an insert in position in a mold during the manufacture of a part.
- the aim of the invention is to meet at least one of the problems encountered in the prior art by proposing a new hybrid part made of composite material and comprising at least one metal insert, said part comprising at least one insert configured to ensure itself. its positioning in the injection mold.
- the invention also aims to propose a new process for manufacturing such hybrid parts.
- the invention relates to novel functionalized metal inserts in that they comprise means for positioning in a mold, for example compression or injection molding or overmoulding.
- the molding may be made by compression of a sheet molding compound (SMC), or a composite material glass felt - thermoplastic material (GMT for "Glass Mat Thermoplastic"). " in English).
- the subject of the invention is a hybrid part for a motor vehicle comprising at least one metal insert overmolded in a layer of plastic or composite material, the insert comprising a body showing an upper face and a lower face, and being at at least partially covered on at least one of its faces by a layer of said plastic or composite material of a defined thickness; the piece being remarkable in that the insert comprises at least one relief extending from one of its faces and in that the height presented by the relief or reliefs is less than or equal to the thickness of said layer of plastic material or composite, overmolded on said face of the insert.
- the invention consists in providing the piece with functionalized inserts having at least one relief intended to bear against the wall of the mold during the molding operation of the part, including overmoulding of the insert.
- the molding method used is an injection molding process.
- the relief or reliefs will act as wedges ensuring the positioning of the insert in the mold according to a predefined position.
- the relief or reliefs are contained in the thickness of the layer of plastic or composite material overmolded on the face of the insert from which they extend.
- the reliefs presented by the insert are not intended to exceed the layer of plastic or composite material in which they are embedded. They are intended to be fully contained.
- the part may comprise one or the other of the following characteristics taken separately or in any combination possible:
- the or at least one of the reliefs is integrally contained in the thickness of the layer of plastic or composite material overmolded on said face of the insert.
- the insert comprises at least one relief extending from each of its lower and upper faces.
- the insert is a profile comprising at least one lateral face and the insert comprises at least one relief extending from the or at least one of the lateral faces.
- the metal insert comprises at least three non-aligned reliefs extending from one of its faces, preferably from each of its faces.
- the height presented by the relief or reliefs, as measured from the face of the insert from which they extend, is equal to the thickness of the layer of plastic or composite material, overmolded on said face of the insert.
- At least one relief is combined with a creep path allowing the passage of the plastic or composite material through said insert during the overmolding operation.
- the insert further comprises at least one creep hole allowing the plastic or composite material to pass through the insert during the overmolding operation.
- the relief or reliefs are in the form of bumps, ribs, lined holes, tabs cut and folded from the body of the insert and / or in the form of stamped sheet metal strips cut into the body of the insert and having two ends connected to said body.
- the relief or reliefs are in the form of a hump associated with a creep path, the insert having a recessed shape on the face opposite to that comprising the relief, complementary to the hump-shaped shape, vis-à-vis said hump shape.
- the relief or reliefs are obtained by deformation of the sheet forming the body of the insert, so as to form the recessed shape on the face opposite to that comprising the relief, of shape complementary to the bump shape, vis-à-vis -vis of said form of hump.
- the relief or reliefs are elongated curved zones.
- a creep path is disposed at one end of the elongated curved zone.
- the insert is in the form of a metal sheet or a profile.
- the hybrid part constitutes a load floor made of composite material comprising a metal edge intended to be welded to the rear part of the base. of a motor vehicle, preferably the metal edge is a free part of a metal insert partially overmolded in the composite material of which the floor is made.
- the subject of the invention is a vehicle, preferably a motor vehicle, which is remarkable in that it comprises at least one hybrid part as defined according to the first aspect of the invention.
- the subject of the invention is an insert for a hybrid part as defined according to the first aspect of the invention, the insert comprising a body showing an upper face and a lower face and being remarkable in that it comprises at least one relief extending from one of its faces, the height of said relief being chosen as a function of the thickness of the layer of plastic or composite material intended to be overmolded on said face of the insert, so as to be less than or equal to the thickness of said layer, preferably the insert is in the form of a metal sheet or a profile.
- the subject of the invention is an insert for a hybrid part as defined according to the first aspect of the invention, the insert comprising a body showing an upper face and a lower face and being remarkable in that it comprises less a relief extending from one of its faces, and in that at least one relief is combined with a creep path allowing the passage of the plastic or composite material through said insert during an overmolding operation of said insert.
- at least one relief is associated with, or adjacent to, a creep path.
- the subject of the invention is a method for manufacturing a hybrid part according to the first aspect, said hybrid part comprising at least one metal insert at least partially overmoulded in a layer of plastic or composite material, the process using a mold comprising a lower portion and an upper portion, and comprising the steps of:
- the method is remarkable in that the insert or at least one of the inserts comprises at least one relief extending from one of its faces and in that:
- the one or more inserts when closing the mold, are in contact with the upper part of the mold by the relief or reliefs extending from their upper face disposed facing the upper part of the mold.
- the invention relates to a method for manufacturing a hybrid part as defined according to the first aspect, said hybrid part comprising at least one insert at least partially overmolded by one or more blanks of sheet molding mixture ( SMC) or glass fiber composite material - thermoplastic material (GMT), the method using a mold comprising an upper part and a lower part and comprising the following steps:
- the method is remarkable in that the insert or at least one of the inserts comprises at least one relief extending from one of its faces and in that:
- this or at least one of these is in abutment against the or at least one of the SMC or GMT blanks by the relief or reliefs extending from their underside , and / or in that the or at least one of the SMC or GMT blanks bears on the or at least one of the reliefs extending from the upper face of the or at least one of the inserts.
- the invention relates to a method for manufacturing a hybrid part as defined according to the first aspect, said hybrid part comprising at least one insert at least partially molded by one or more sheet molding mixture blanks (SMC ), the method using a mold comprising an upper portion and a lower portion and comprising the steps of:
- the method is remarkable in that the insert or at least one of the inserts comprises at least one relief extending from one of its faces and in that:
- this or at least one of these is in support against the or at least one of the SMC blanks by the relief or reliefs extending from their underside, and / or or in that the or at least one of the SMC blanks bears on the or at least one of the reliefs extending from the upper face of the or at least one of the inserts.
- the invention relates to a method of manufacturing a hybrid part as defined according to the first aspect, said hybrid part comprising at least one insert at least partially molded by one or more blanks of composite glass felt material - thermoplastic material (GMT), the method using a mold comprising an upper part and a lower part and comprising the following steps:
- the method is remarkable in that the insert or at least one of the inserts comprises at least one relief extending from one of its faces and in that: when placing the insert (s) in the mold, this or at least one of these is in abutment against the or at least one of the blanks of GMT by the relief or reliefs extending from their lower face, and / or in that the or at least one of the blanks of GMT is in support on the or at least one of the reliefs extending from the upper face of the or at least one of the inserts.
- FIG. 1 shows an example of metal insert according to the invention.
- Figures 2 and 3 illustrate the positioning of the insert in the mold and in the layer of polymeric material because of the reliefs it has on its lower and upper faces.
- Figure 4 is a partial view of an embodiment of an insert according to the invention having a mixture of reliefs and creep holes.
- the reliefs shown are in the form of stamped sheet metal strips cut into the body of the insert and having two ends connected to said body.
- Figure 5 is a partial view of an embodiment of an insert according to the invention, the reliefs are in the form of lined holes.
- Figure 6 is a partial view of an embodiment of an insert according to the invention, the reliefs are in the form of tabs cut and folded from the body of the insert.
- Figure 7 is a partial view of an embodiment of an insert according to the invention, the reliefs are in the form of a bump and are associated with creep holes.
- Figure 8 is a partial view of an embodiment of an insert according to the invention, the reliefs are in the form of elongated bumps, and having a creep path at one end of these elongated bumps.
- understand is synonymous with “include” and is not limiting in that it permits the presence of other elements in the room or in the vehicle to which it refers and / or other steps in the process to which it refers. It is understood that the term “understand” includes the words “consist of”. In the different figures, the same references designate identical or similar elements.
- the term “lower” will mean a greater ground proximity than “higher” along a vertical axis. Note that in the context of the description which follows the lower and upper faces of the insert are defined with respect to its positioning in the mold during the manufacture of the hybrid part and not according to the future positioning of the part in the vehicle. In the context of the invention, the term “resin” will be considered synonymous with "polymer matrix”.
- the invention relates to a hybrid part for a motor vehicle comprising at least one metal insert overmolded in a layer of plastic or composite material.
- An example of such an insert 1 is shown in FIG. It is an insert intended to form the frame of a load floor of a motor vehicle. More specifically it is a stamped to form the rear part of the frame of a floor (not shown) of plastic or composite material, preferably composite material.
- the insert 1 shown is intended to be only partially overmoulded, so that the formed floor has a border 3 metal which can be welded to the underbody elements of a vehicle. This metal edge is said to be free in that it is not covered with plastic or composite material. Nevertheless, the invention can be applied to other types of inserts and parts.
- the insert 1 comprises at least one relief 5 intended to ensure its positioning in the mold during the overmolding operation.
- the insert 1 comprises at least one relief 5 extending from one of its faces and in that the height, presented by the relief or reliefs 5, is less than or equal to the thickness of the layer of material plastic or composite, overmolded on said face of the insert 1.
- the insert comprises a body 9 in the form of a metal sheet or a profile having a lower face and an upper face (7a, 7b illustrated in Figure 2).
- the insert 1 comprises at least three reliefs 5 non-aligned on at least one of its faces 7 and preferably on each of its faces 7.
- the insert 1 comprises reliefs 5 extending from the two upper and lower faces 7 of its body 9. Those skilled in the art will have the advantage that said reliefs 5 show a height similar to that of the thickness of the plastic or composite material which is overmolded on each of the faces of said insert 1.
- the invention also relates to a manufacturing method, illustrated in FIGS. 2 and 3, of a hybrid part 1 1 comprising at least one insert 1 overmolded in a layer of a plastic or composite material, by means of a mold comprising a lower part 13 and an upper part 15.
- the method comprising the following steps:
- the method is remarkable in that the insert or at least one of the inserts comprises at least one relief extending from one of its faces and in that:
- the invention also relates to a method of manufacturing a hybrid part comprising at least one insert molded by one or more SMC blanks, by means of a mold comprising an upper part and a lower part.
- the method comprises the following steps: placing the insert (s) and the SMC blank (s) in the lower part of the mold, the or at least one of the blanks being in contact with the upper or lower face of the or at least one of the blanks one of the inserts;
- the insert or at least one of the inserts comprises at least one relief extending from one of its faces and in that: when placing the insert (s) in the mold, this or at least one of these is in abutment against the or at least one of the SMC blanks by the relief or reliefs extending from their lower face, and / or in that the or at least one of the SMC blanks is supported on the or at least one of the reliefs extending from the upper face of the or at least one of the inserts.
- the invention further relates to a method for manufacturing a hybrid part comprising at least one insert molded by one or more blanks of GMT, by means of a mold comprising an upper part and a lower part.
- the method comprises the following steps: heating the blank (s) of GMT;
- the insert or at least one of the inserts comprises at least one relief extending from one of its faces and in that: when placing the insert (s) in the mold, this or at least one of these is in support against the or at least one of the blanks of GMT by the reliefs extending from their lower face, and / or in that the or at least one of the GMT blanks bears on the or at least one of the reliefs extending from the upper face of the or at least one of the inserts .
- the insert 1 has reliefs 5a on its lower face 7a intended to be arranged facing the lower part of the mold 13, or facing a blank of SMC or GMT, and that said insert 1 is put into position. placed in the mold, it will rest against the inner wall of the lower part 13 of the mold through the reliefs 5a which extend from its lower face 7a, or against the surface of a blank of SMC or GMT.
- the presence of at least three non-aligned reliefs 5a on this lower face 7a thus allows a stable support and a correct orientation of the insert 1 in the mold.
- the insert 1 When the insert 1 has reliefs 5b on its upper face 7b intended to be arranged facing the upper part 15 of the mold, or facing a blank of SMC or GMT, and the mold is closed, the insert 1 will be in contact with the inner wall of the upper part 15 of the mold or with the surface of a blank of SMC or GMT.
- the insert 1 has reliefs 5 on its two lower faces 7a and 7b, so that the closing of the mold will fix in position the insert 1 in the mold, for example in a central position according to the height of the mold .
- the invention is remarkable in that it does not need the mold to be provided with means for positioning the insert 1.
- the positioning means in the mold are constituted by the reliefs 5 that the insert 1 has.
- the reliefs 5 carried by the insert 1 are in the form of stamped sheet metal strips 19 (see Figure 4) cut into the body 9 of the insert 1 and having two ends connected to said body.
- This type of relief is advantageous in that it creates creep zones 21 allowing the passage of the plastic or composite material through the insert, and promotes the anchoring of the insert 1 in the hybrid part.
- the creep paths of the material through the insert 1 and more precisely of its reliefs 5 are illustrated in FIGS. 2 and 3.
- the body 9 of the insert 1 has at least one creep hole 23, or a journeyage, allowing the passage of plastic or composite material through the insert 1 during the overmolding operation.
- the insert may have both creep paths associated with the reliefs 5 and creep holes 23 not associated with the reliefs.
- creep paths 21 are associated with the reliefs 5.
- the operation of forming the relief or reliefs 5 will create a hole 21 in the body 9 of the insert 1. This is, for example, the case when the shaping of the reliefs comprises punching operations and or cutting the sheet forming the insert 1.
- the relief 5 may be a bordered hole 25, that is to say an openwork 27 surrounded by a rim 29, the rim 29 forming the relief 5 for the positioning of the insert 1.
- the opening 27 forming the creep path 21 associated with the relief 5.
- the relief 5 may be constituted by one or more lug 31 cut into the sheet forming the body 9 of the insert 1 and folded.
- the flow path 21 associated with the relief 5 is constituted by the openwork 33 created by the cutting-folding of the one or more lugs 31.
- the relief 5 is in the form of an elongated curved zone 45 extending on one of the faces 7 of the insert 1.
- the face of the insert 1 opposite to that comprising the relief 5, has a recessed area 46 vis-à-vis the relief 5, complementary shape to said relief 5.
- the recessed area 46 also has an elongated shape.
- the elongated curved area is on the face 7a and the recessed area 46 on the face 7b.
- the relief 5 is obtained for example by deformation of the sheet forming the body 9 of the insert 1, for example by stamping. The deformation of this sheet forming the body 9 creates on one of the faces of the insert 1 the elongated convex zone 45 and on the opposite face of said insert 1 the recessed zone 46.
- a creep channel 21 is formed at the one of the ends of this elongated curved zone 45.
- This creep path 21 can be made for example by cutting the sheet forming the body 9, at the time of stamping the sheet forming the body 9 of the insert, by example by punching. As shown in FIG. 8, this creep path 21 forms an opening at the end of the elongated convex zone 45, passing through the insert 1. That is to say that one of the ends of the elongated curved zone 45 opens into this opening forming the creep path 21, the hollow zone 46 also opening at its end in the same opening.
- the recessed area 46 guides the plastic or composite material to the creep path 21 which is associated with the relief 5, creating a channel directing the displacement of the plastic or composite material towards said flow path 21, during overmoulding of the plastic or composite material on the insert 1.
- the insert 1 may comprise several elongated curved zones 45 on one of the faces 7a or 7b of the insert 1.
- elongated convex zones 45 are disposed on each of the two faces 7a and 7b of the insert 1, and the insert 1 also has recessed areas 46 on each of these faces 7a and 7b.
- the relief 5 is in the form of a half hemisphere, with a creep path 21 adjacent to said relief so that the edge of the hemisphere protruding from the insert 1 forms at least part of one of the edges of said creep path 21.
- the relief or reliefs of the insert 5 are made by stamping so that their shaping does not create a creep path (or holes). in the sheet forming the body 9 of the insert.
- the reliefs 5 may be in the form of circular or elongate bumps, or in the form of ribs extending over all or part of the insert 1 in any direction.
- the skilled person will benefit from using an insert 1 also having creep holes 23.
- the height "h" presented by the relief or reliefs 5 extending from a face 7 of the insert 1 is equal to the thickness "e" of the layer of plastic or composite material 17, overmolded on said face 7 of the insert 1. Nevertheless, it may happen in some cases that during the overmolding operation, the material (or resin) injected into the mold infiltrates between the mold and the ends of the reliefs 5 placed in support against the walls of the mold.
- the height "h” presented by the relief or reliefs 5, as measured from the face 7 of the insert 1 of which they extend corresponds to at least 90% of the thickness of the layer of plastic or composite material overmolded on said face 7 of the insert, preferably at least 95%, more preferably at least 98%.
- the height "h” presented by the relief or reliefs 5, as measured from the face 7 of the insert 1 of which they extend is less than or equal to the thickness "e" of the layer of plastic or composite material 17, overmolded on said face 7 of the insert 1.
- the hybrid part 1 1 according to the invention can be made of plastic materials or composite material, preferably composite material.
- the selected composite material can be a thermoplastic or thermosetting composite material.
- the composite materials are defined in the context of the invention as having a polymer matrix and one or more reinforcing elements.
- the reinforcing elements comprise or consist of fibers or a mixture of fibers selected from glass, carbon, ceramic, graphite, natural fibers such as flax, hemp or bamboo fibers, organic polymers such as than polyester fibers.
- the fibers of the reinforcing elements are glass fibers.
- thermoplastic polymer matrix will advantageously be selected from one or more materials selected from polypropylenes (PP), polyphthalamides (PPA), polyetheretherketones (PEEK), phenylene polysulfides (PPS), polyamide imides (PAI), polyetherimides (PEI), polyarylamides (PAA), or polyamides (PA) such as for example polyamide 6 (PA 6 or polycaprolactam) or polyamide 6.6 (PA 6.6 or polyhexamethylene adipamide).
- PP polypropylenes
- PPA polyphthalamides
- PEEK polyetheretherketones
- PPS phenylene polysulfides
- PAI polyamide imides
- PEI polyetherimides
- PAA polyarylamides
- PA polyamides
- thermosetting polymer matrix will advantageously be selected from unsaturated polyesters, polyurethanes, vinylesters or polyepoxides.
- the insert may be totally or partially embedded in the plastic or composite material.
- the insert 1 is partially overmolded.
- the insert 1 has a portion overmolded on at least one of its faces and a free portion in that it is not covered with material (or resin).
- the free part 3 and the part intended to be overmoulded are arranged to extend perpendicularly with respect to each other as illustrated in FIGS. 1, 3 and 4.
- the hybrid part is a load floor of a motor vehicle.
- said floor is made of composite material.
- the load floor is polyester filled with fiberglass.
- the floor advantageously comprises a metal rim intended to be welded to the rear part of the underbody of the vehicle, as is the case for all-metal load floors.
- This metal edge is constituted by one or more inserts according to the invention, so that the inserts or are partially overmolded in the floor and have a portion embedded in the plastic or composite material and an outer portion to be welded.
- the load floor comprises a plurality of inserts, at least one being disposed on each of its edges.
- the insert or inserts are preferably made of steel and are in the form of a stamped sheet and / or in the form of profiles.
- the insert can also be aluminum or magnesium.
- the inserts form a frame.
- the inserts arranged at the front and rear of the floor are stampings and the two side portions are profiles.
- the portion of the rear floor, composite material only has stiffening ribs and possibly a cavity for receiving the spare wheel.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1850412A FR3076757B1 (fr) | 2018-01-18 | 2018-01-18 | Piece hybride en materiau composite comprenant au moins un insert metallique et procede de fabrication d’une telle piece. |
| PCT/EP2019/051098 WO2019141754A1 (fr) | 2018-01-18 | 2019-01-17 | Piece hybride en materiau composite comprenant au moins un insert metallique et procede de fabrication d'une telle piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3740366A1 true EP3740366A1 (fr) | 2020-11-25 |
Family
ID=61656008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19700525.9A Pending EP3740366A1 (fr) | 2018-01-18 | 2019-01-17 | Piece hybride en materiau composite comprenant au moins un insert metallique et procede de fabrication d'une telle piece |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12083720B2 (fr) |
| EP (1) | EP3740366A1 (fr) |
| CN (1) | CN214773523U (fr) |
| FR (1) | FR3076757B1 (fr) |
| WO (1) | WO2019141754A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3125248B1 (fr) | 2021-07-16 | 2024-02-23 | Cie Plastic Omnium Se | Procédé de moulage d’une pièce de véhicule automobile comprenant un insert métallique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2222888A5 (en) * | 1973-03-23 | 1974-10-18 | Profil Sa Ind Financ Le | Decorative strip applicable to motor car trim - has plastic or elastomer section bonded to steel backing plate |
| US5672405A (en) * | 1996-02-26 | 1997-09-30 | Plank, Jr.; J. Lee | Metal-reinforced molded-plastic composite structures |
| US20050175400A1 (en) * | 2003-12-19 | 2005-08-11 | Thomas Behr | Add-on part for a vehicle |
| DE102008010834A1 (de) * | 2008-02-23 | 2009-08-27 | Daimler Ag | Rahmenbauteil und ein Verfahren zu dessen Herstellung |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1918149A (en) * | 1931-05-08 | 1933-07-11 | Burgess Lab Inc C F | Sound transmitting and sound absorbing construction |
| EP0594131A1 (fr) | 1992-10-21 | 1994-04-27 | The Budd Company | Châssis composite et méthode de fabrication |
| DE10024224B4 (de) | 2000-05-17 | 2005-03-24 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verfahren und Vorrichtung zum Innenhochdruckumformen |
| DE10221709A1 (de) * | 2002-05-16 | 2004-03-04 | Hella-Behr Fahrzeugsysteme Gmbh | Leichtbauteil für Trägerelemente von Kraftfahrzeugen |
| JP4009153B2 (ja) * | 2002-07-10 | 2007-11-14 | ダイキョーニシカワ株式会社 | フロントエンドパネル |
| FR2866306B1 (fr) * | 2004-02-17 | 2006-05-26 | Valeo Thermique Moteur Sa | Structure composite en metal et matiere plastique, en particulier pour une face avant de vehicule automobile. |
| FR3002760B1 (fr) | 2013-03-01 | 2016-02-19 | Peugeot Citroen Automobiles Sa | Plancher arriere de charge en matiere composite pour vehicule automobile |
| FR3026080B1 (fr) * | 2014-09-18 | 2017-10-06 | Faurecia Bloc Avant | Plancher composite, vehicule comportant un tel plancher, procede de fabrication du plancher, procede de fabrication du vehicule |
| FR3046101B1 (fr) | 2015-12-28 | 2018-09-21 | Compagnie Plastic Omnium | Moule de surmoulage d'un insert comprenant un systeme de positionnement et de maintien de l'insert |
| CA3023213A1 (fr) * | 2016-05-06 | 2017-11-09 | Magna Exteriors Inc. | Remplacement d'emboutissages de metal par un composant en maille dans des conceptions de piece hybride en plastique et en metal |
-
2018
- 2018-01-18 FR FR1850412A patent/FR3076757B1/fr active Active
-
2019
- 2019-01-17 US US16/963,153 patent/US12083720B2/en active Active
- 2019-01-17 CN CN201990000406.6U patent/CN214773523U/zh not_active Expired - Fee Related
- 2019-01-17 EP EP19700525.9A patent/EP3740366A1/fr active Pending
- 2019-01-17 WO PCT/EP2019/051098 patent/WO2019141754A1/fr not_active Ceased
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2222888A5 (en) * | 1973-03-23 | 1974-10-18 | Profil Sa Ind Financ Le | Decorative strip applicable to motor car trim - has plastic or elastomer section bonded to steel backing plate |
| US5672405A (en) * | 1996-02-26 | 1997-09-30 | Plank, Jr.; J. Lee | Metal-reinforced molded-plastic composite structures |
| US20050175400A1 (en) * | 2003-12-19 | 2005-08-11 | Thomas Behr | Add-on part for a vehicle |
| DE102008010834A1 (de) * | 2008-02-23 | 2009-08-27 | Daimler Ag | Rahmenbauteil und ein Verfahren zu dessen Herstellung |
Non-Patent Citations (1)
| Title |
|---|
| See also references of WO2019141754A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN214773523U (zh) | 2021-11-19 |
| FR3076757A1 (fr) | 2019-07-19 |
| WO2019141754A1 (fr) | 2019-07-25 |
| US12083720B2 (en) | 2024-09-10 |
| FR3076757B1 (fr) | 2019-12-13 |
| US20210170646A1 (en) | 2021-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0428885B1 (fr) | Procédé de réalisation d'un ski par injection, et structure de ski | |
| FR2943944A1 (fr) | Procede de fabrication d'un panneau raidi en materiau composite a matrice thermoplastique et panneau ainsi obtenu | |
| FR3066466B1 (fr) | Bac de stockage pour assemblage sur une structure de caisse de vehicule automobile. | |
| EP0442262B1 (fr) | Procédé d'assemblage d'un ski par surmoulage, et structure de ski obtenue par ce procédé | |
| EP3766715B1 (fr) | Insert de renfort muni d'orifices traversants | |
| EP3296089B1 (fr) | Procédé de fabrication amélioré d'une pièce de structure hybride de véhicule automobile et pièce de structure hybride correspondante | |
| EP2938533A1 (fr) | Plancher en matière plastique pour véhicule automobile avec inserts métalliques de ferrage | |
| EP3393768A1 (fr) | Procede de fabrication ameliore d'une piece de structure de vehicule automobile | |
| EP3740366A1 (fr) | Piece hybride en materiau composite comprenant au moins un insert metallique et procede de fabrication d'une telle piece | |
| WO2022229547A1 (fr) | Dispositif de moulage d'une piece aubagee de turbomachine | |
| EP1718515B1 (fr) | Procede de fabrication d'un plancher de vehicule comprenant une couche de materiau synthetique | |
| EP3737602B1 (fr) | Vehicule presentant une piece de renfort en soutien d'un panneau de carrosserie | |
| EP3512691B1 (fr) | Procédé de fabrication amélioré d'une pièce de structure hybride de véhicule automobile et pièce de structure hybride correspondante | |
| FR3068914A1 (fr) | Procede de fabrication d'un bandage pneumatique avec une bande de roulement perfectionnee | |
| EP3651976B1 (fr) | Procédé de fabrication à plat d'un bandage pneumatique | |
| EP0693362B1 (fr) | Procédé pour réaliser des pièces en au moins deux matières thermoplastiques | |
| FR3051711A1 (fr) | Procede de fabrication d'une piece d'equipement | |
| FR3076804A1 (fr) | Piece structurelle pour caisse en blanc de vehicule et procede de fabrication associe | |
| FR3117060A1 (fr) | Pièce d’équipement de véhicule automobile et procédé de fabrication associé | |
| FR3059587A1 (fr) | Composant pour une partie de garniture interieure de vehicule et procede de fabrication d'un composant | |
| FR3164410A1 (fr) | Procédé de fabrication d’un panneau de garnissage de véhicule et panneau de garnissage ainsi obtenu | |
| FR3130678A1 (fr) | Dispositif de moulage d’une piece aubagee de turbomachine | |
| FR3094913A1 (fr) | Procédé de fabrication d’une pièce d’équipement de véhicule automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20200803 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
| 17Q | First examination report despatched |
Effective date: 20230503 |
|
| RAP3 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SHAPERS' FRANCE Owner name: FAURECIA AUTOMOTIVE COMPOSITES Owner name: STELLANTIS AUTO SAS |