EP2621719A2 - Pièce structurale ou de châssis d'un véhicule à moteur - Google Patents

Pièce structurale ou de châssis d'un véhicule à moteur

Info

Publication number
EP2621719A2
EP2621719A2 EP11763631.6A EP11763631A EP2621719A2 EP 2621719 A2 EP2621719 A2 EP 2621719A2 EP 11763631 A EP11763631 A EP 11763631A EP 2621719 A2 EP2621719 A2 EP 2621719A2
Authority
EP
European Patent Office
Prior art keywords
structural
chassis part
layer
plastic
part according
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.)
Withdrawn
Application number
EP11763631.6A
Other languages
German (de)
English (en)
Inventor
Torsten Gieseke
Oliver Kleinschmidt
Lothar Patberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Steel Europe AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ThyssenKrupp Steel Europe AG filed Critical ThyssenKrupp Steel Europe AG
Publication of EP2621719A2 publication Critical patent/EP2621719A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B62D29/005—Superstructures, understructures, or sub-units thereof, characterised by the material thereof characterised by combining metal and synthetic material preformed metal and synthetic material elements being joined together, e.g. by adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a general shape other than plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/046—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/085—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/088—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/065—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
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    • B32B2255/00—Coating on the layer surface
    • B32B2255/06—Coating on the layer surface on metal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/025—Polyolefin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0257—Polyamide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/02—Cellular or porous
    • B32B2305/022—Foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/08—Reinforcements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/22—Fibres of short length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/712—Weather resistant
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/738—Thermoformability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/20—Constructional features of semi-rigid axles, e.g. twist beam type axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7101—Fiber-reinforced plastics [FRP]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70—Materials used in suspensions
    • B60G2206/71—Light weight materials
    • B60G2206/7104—Thermoplastics
    • B60G2206/71042—Polyester elastomer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y10T428/2495—Thickness [relative or absolute]
    • Y10T428/24967—Absolute thicknesses specified
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T428/269—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension including synthetic resin or polymer layer or component

Definitions

  • the invention relates to a structural or chassis part of a motor vehicle, wherein the structural or chassis part consists of a composite material with an outer metallic layer, a middle plastic or plastic foam layer and an outer fiber-reinforced plastic layer.
  • Safety requirements are ensured by structural or chassis parts.
  • Structural parts in the context of the present invention are therefore, for example, parts of the subfloor, floor panels,
  • the said structural parts have in common that they are not part of the visible outer skin of the motor vehicle and serve mainly because of their supporting function for receiving and / or forwarding forces acting on the motor vehicle.
  • chassis parts in the context of the present invention for example, cross member of the chassis,
  • Subframe handlebars, pivot bearings, stabilizers,
  • Chassis parts are therefore components that are functionally related to the
  • the use of composite materials is known for motor vehicles for outer skin parts, in particular vehicle roofs from the German patent DE 102 21 582 B4.
  • the composite material consists of a metal layer with an underlying plastic layer of thermoplastic material and a third layer of one
  • Material layers namely a support layer made of metal, an adhesive layer of elastomer and a cover layer of carbon fiber or
  • the object of the present invention is to provide a structural or chassis part which allows a further weight saving without impairing the properties with regard to the load-bearing capacity.
  • the above object is for a structural or
  • Chassis part of a motor vehicle achieved in that the thickness of the central plastic layer is at least 0.2 mm.
  • Chassis part of a motor vehicle the metallic layer is not used for load suspension.
  • the load-bearing capacity of the structural part or chassis part according to the invention is provided by the fiber-reinforced plastic layer.
  • the thermoplastic or thermoset medium plastic or plastic foam layer of the composite allows the fiber structure of the fiber reinforced outer,
  • thermoplastic or thermosetting plastic layer does not press outward. In addition, local
  • Composite material serves on the one hand to protect the
  • thermoplastic or thermosetting, middle layer for example, from moisture, on the other hand, as an outer skin but also as an indicator of a possible overloading of the structural part or chassis part. For example, cracks or bulges in the metallic layer may indicate overloading.
  • the consistent use of the composite material in the structural or chassis parts according to the invention enables a further, significant reduction in weight Motor vehicles.
  • the structure of the structural or chassis parts also allows a permanent use in the motor vehicle without property losses occur because, for example, the sensitive fiber-reinforced plastic layer can be protected by the other layers.
  • Chassis part has the fiber-reinforced, thermoplastic or thermosetting plastic layer of glass fiber and / or carbon fiber.
  • Glass fiber reinforced plastic layers are generally less expensive than carbon fiber reinforced plastic layers. However, they are in terms of their load capacity compared to carbon fiber reinforced plastic layers
  • Carbon fiber-reinforced plastic layers have maximum strength with the lowest weight and therefore lead to a minimum weight of the structural or chassis parts.
  • the use of other fiber types is conceivable, e.g. Aramid, polyethylene, basalt, boron.
  • Metal fibers, in particular steel fibers, can also be used to reinforce the outer plastic layer and have the advantage that the outer
  • Plastic layer is electrically conductive and thus
  • Thermoplastics contain, for example
  • Polyolefins polyamides, polyesters, polyethylenes,
  • thermoplastic are based Plastic layers on a polyamide and / or polyethylene.
  • both thermoplastics can be processed very well; on the other hand, they have advantageous properties with respect to their formability when hot.
  • Polyamide is generally more stable in temperature compared to polyethylene and can also be used in
  • Thermosets are thermally stable and can be used, for example, in areas where higher temperatures, in particular, may occur for a short time.
  • the thickness of the fiber-reinforced plastic is 0.2 mm to 1.0 mm, preferably at most 0.8 mm.
  • Chassis part is provided that the thickness of the middle thermoplastic or thermosetting plastic layer is at most 3.0 mm, preferably at most 1.0 mm.
  • Thermoplastic or thermosetting plastic layer to protect against voltage spikes is the average
  • Plastic layer 0.2 mm A very good compromise between increased weight and prevention of fiber squeezing in the metallic outer layer is given when using a medium plastic layer up to 1.0 mm thick.
  • the use of a plastic foam layer is also conceivable.
  • the thickness of the middle layer can be between 0.2 mm and 50 mm, preferably 3.0 mm to 30 mm.
  • Plastic foam layers also have a reduced weight compared to full plastic layers with the same thickness.
  • the outer metallic has
  • thermoplastic or thermosetting plastic thermoplastic or thermosetting plastic
  • the thickness of the metallic layer is 0.1 mm to 0.5 mm, preferably at most 0.3 mm.
  • a corrosion protection layer on one or both sides of the metallic layer, the corrosion of the outer metallic layer, for example due to weathering, can be successfully counteracted.
  • Chassis part consists of the metallic layer of steel, in particular a galvanized steel. Steel is not only inexpensive, but also provides the necessary
  • thermoplastic material which
  • Plastic layer is used, softens and becomes malleable accordingly.
  • thermoplastic To heat softening temperature.
  • the forming takes place at temperatures between 180 ° C and max. 250 ° C, paying attention to the stability or temperature stability of the thermoplastic used.
  • the structure or chassis part is a
  • Base plate a floor assembly, a battery case, a
  • Tank tank water tank, spare wheel well, a wheel rim, a tunnel reinforcement, a composite or
  • Multi-link axle or A, B or C pillar reinforcement It is also conceivable that the rim itself consists of the described composite material.
  • Chassis parts allows the use of the composite a significant reduction in weight with constant strength or use properties in the motor vehicle.
  • the structure or chassis part will be different
  • Layer detectable or detectable These deformations can be in certain types of load in an irregularity of the sheet thickness but also by plastic deformation, the
  • the part can be replaced or
  • Fig. 2 shows a first embodiment of a
  • Fig. 3 is a sectional view of a second
  • FIG. 1 shows first the composite material 1, which is used for the structural or chassis parts.
  • Composite material consists of a metallic outer
  • Layer 2 which preferably consists of a steel sheet having a thickness of 0.1 mm to 0.5 mm.
  • the metallic layer 2 is made of corrosion-protected
  • the middle thermoplastic layer is preferably based on a polyamide or polyethylene, that means that this layer can be made of either a specific polyamide or
  • Polyethylene and / or polyamide is prepared.
  • the fiber-reinforced thermoplastic resin layer 4 is also reinforced on a polyethylene or a polyamide based with glass fibers and / or carbon fibers.
  • FIG. 2 A typical structural component of a motor vehicle is shown in FIG. 2 in a perspective view in the form of a
  • the outer metallic layer 2 has in the illustrated embodiment of a floor panel 5 has a thickness of 0.4 mm. To the 0.7 mm thick carbon fiber
  • the average thermoplastic layer has a thickness of 0.5 mm in the present embodiment. Despite the total thickness of about 1.6 mm of the illustrated floor panel 5, there is a significant weight reduction of the floor panel over conventional floor panels due to the high plastic content.
  • Composite here has a thickness of 0.2 mm, so that there is a total thickness of 0.6 mm. Despite the extremely low thickness of the battery case 6 in this
  • the strength values are sufficient to provide the battery housing 6 with the necessary rigidity or load capacity for the application.
  • a wheel shell 7 produced from the composite material is shown in a schematic sectional view in FIG. 4.
  • the thickness of the steel layer 2 amounts to 0.3 mm and is intended to be the inner one
  • the thickness of the middle thermoplastic layer 3 is 0.4 mm and that of the fiber-reinforced, thermoplastic
  • thermoplastic thermoplastic and an outer thermoplastic, fiber reinforced plastic layer.
  • the fiber reinforced, thermoplastic thermoplastic
  • Fig. 5 shows in Figs. 5a), 5b) and 5c) different embodiments of structural or chassis parts, which consists of the composite material with an outer metallic
  • thermoplastic layer a middle thermoplastic material and an outer fiber reinforced thermoplastic
  • a tunnel reinforcement 8 is shown in FIG. 5a), a torsion beam axle 9 in FIG. 5b) and an A-pillar reinforcement 10 in FIG. 5c)
  • the middle thermoplastic layer can also be designed as a plastic foam layer or as required by a thermosetting plastic / plastic foam layer be replaced.
  • the fiber-reinforced plastic layer can also be formed on the basis of thermosets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Motor Or Generator Frames (AREA)

Abstract

L'invention concerne une pièce structurale ou de châssis d'un véhicule à moteur. Cette pièce structurale ou de châssis est constituée d'une matière composite et comporte une couche extérieure métallique, une couche centrale de plastique ou de mousse plastique et une couche extérieure de plastique renforcé par des fibres. L'objet de l'invention est d'obtenir une pièce structurale ou de châssis qui permet de réduire encore le poids sans nuire aux propriétés de capacité d'absorption de charge. A cette fin, l'épaisseur de la couche centrale de plastique est d'au moins 0,2 mm.
EP11763631.6A 2010-09-28 2011-09-23 Pièce structurale ou de châssis d'un véhicule à moteur Withdrawn EP2621719A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010037817 DE102010037817A1 (de) 2010-09-28 2010-09-28 Struktur- oder Fahrwerkteil eines Kraftfahrzeugs
PCT/EP2011/066570 WO2012052250A2 (fr) 2010-09-28 2011-09-23 Pièce structurale ou de châssis d'un véhicule à moteur

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EP2621719A2 true EP2621719A2 (fr) 2013-08-07

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EP11763631.6A Withdrawn EP2621719A2 (fr) 2010-09-28 2011-09-23 Pièce structurale ou de châssis d'un véhicule à moteur

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US (1) US8574711B2 (fr)
EP (1) EP2621719A2 (fr)
CN (1) CN103153603B (fr)
BR (1) BR112013007284A2 (fr)
DE (1) DE102010037817A1 (fr)
WO (1) WO2012052250A2 (fr)

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BR112013007284A2 (pt) 2016-06-14
US20130244014A1 (en) 2013-09-19
WO2012052250A9 (fr) 2012-09-07
CN103153603B (zh) 2017-03-08
US8574711B2 (en) 2013-11-05
CN103153603A (zh) 2013-06-12
WO2012052250A2 (fr) 2012-04-26
WO2012052250A3 (fr) 2012-07-05
DE102010037817A1 (de) 2012-03-29

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