WO2018095600A1 - Procédé de fabrication d'un bras de suspension, ainsi que bras de suspension et suspension de roue - Google Patents

Procédé de fabrication d'un bras de suspension, ainsi que bras de suspension et suspension de roue Download PDF

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Publication number
WO2018095600A1
WO2018095600A1 PCT/EP2017/070452 EP2017070452W WO2018095600A1 WO 2018095600 A1 WO2018095600 A1 WO 2018095600A1 EP 2017070452 W EP2017070452 W EP 2017070452W WO 2018095600 A1 WO2018095600 A1 WO 2018095600A1
Authority
WO
WIPO (PCT)
Prior art keywords
support structure
handlebar
fiber
connecting structure
link
Prior art date
Application number
PCT/EP2017/070452
Other languages
German (de)
English (en)
Inventor
Ignacio Lobo Casanova
Rene Laschak
Original Assignee
Zf Friedrichshafen 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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2018095600A1 publication Critical patent/WO2018095600A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • 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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers
    • B29C70/081—Combinations of fibres of continuous or substantial length and short fibres
    • 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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • 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
    • B29C70/86—Incorporated in coherent impregnated reinforcing layers, e.g. by winding
    • 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
    • B29L2031/06—Rods, e.g. connecting rods, rails, stakes
    • 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
    • B29L2031/748—Machines or parts thereof not otherwise provided for
    • B29L2031/7488—Cranks
    • 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
    • B60G2206/013—Constructional features of suspension elements, e.g. arms, dampers, springs with embedded inserts for material reinforcement
    • 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
    • B60G2206/014—Constructional features of suspension elements, e.g. arms, dampers, springs with reinforcing nerves or branches
    • 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
    • B60G2206/017—Constructional features of suspension elements, e.g. arms, dampers, springs forming an eye for the bushing
    • 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
    • B60G2206/10—Constructional features of arms
    • B60G2206/11—Constructional features of arms the arm being a radius or track or torque or steering rod or stabiliser end link
    • 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
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8102—Shaping by stamping
    • 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
    • B60G2206/80—Manufacturing procedures
    • B60G2206/81—Shaping
    • B60G2206/8106—Shaping by thermal treatment, e.g. curing hardening, vulcanisation
    • 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
    • B60G2206/80—Manufacturing procedures
    • B60G2206/82—Joining

Definitions

  • the invention relates to a method for producing a link, in particular a link for a suspension, wherein the link is made with a support structure and at least one connection structure, of which the support structure of a continuous fiber reinforced plastic semi-finished and the at least one connection structure of a short or long fiber reinforced plastic semi-finished product is formed, and wherein the support structure has been preformed as a preform and is not yet fully cured in a manufacturing process cohesively connected to the connection structure.
  • the invention relates to a handlebar, in particular a handlebar for a suspension, which is composed at least of a support structure and at least one connecting structure, wherein the support structure of an endless fiber plastic composite and the at least one connecting structure of a short fiber or long fiber plastic Composite is formed, and wherein the support structure has been connected in a manufacturing process as a not yet completely cured preform cohesively with the at least one connecting structure.
  • the invention has a wheel suspension for a motor vehicle with at least one aforementioned handlebar for the subject.
  • handlebars are also part of the steering and roll suspension of a motor vehicle, where they then connect to a steering gear or a stabilizer.
  • a handlebar can be realized as a 2-point link, as a 3-point link or as a 4-point link.
  • handlebars are made of metal in the form of cast iron, steel or aluminum, in particular, the steel variant by a high Strength, stiffness and ductility.
  • a major disadvantage of handlebars made of metal, however, is that they have a high weight, usually an additional post-processing is necessary in the context of production and also measures against corrosion are to be taken. The higher weight increases the proportion of unsprung masses, which is reflected negatively in terms of driving characteristics and also the consumption of the respective motor vehicle.
  • the necessary post-processing and the additional measures in terms of corrosion protection increase the production cost.
  • handlebars are increasingly also in hybrid design, so a combination of a metallic material with a fiber composite material, or purely made of fiber composites, in order to achieve a particularly light, strong and well-adaptable geometry geometry.
  • a handlebar is apparent, which is in particular a handlebar for a suspension.
  • the handlebar has two pivot points, which are connected to each other via a support structure made of an endless fiber-plastic composite.
  • the support structure is designed box-shaped and is stiffened by a connection structure consisting of a short or long fiber-plastic composite.
  • the support structure and the connection structure are connected to one another in a material-locking manner in that the support structure is inserted into an injection mold in a not yet fully cured state and the connection structure is subsequently produced.
  • both the support structure, and the connecting structure made of a thermoplastic semi-finished plastic, so that the ultimately produced handlebar consists of a thermoplastic fiber-plastic composite.
  • a handlebar having a support structure and at least one connection structure is produced, of which the support structure is formed from a continuous fiber-reinforced plastic semi-finished product and the at least one connection structure is formed from a short- or long-fiber-reinforced plastic semi-finished product.
  • the support structure was preformed as a preform and is not yet fully cured in a manufacturing process cohesively connected to the at least one connection structure.
  • a link is formed which is composed of at least one support structure and at least one connecting structure.
  • the support structure of an endless fiber-plastic composite and the at least one connection structure of a short fiber or long fiber plastic composite is formed.
  • the support structure has been connected in a manufacturing process as a not yet fully cured preform cohesively with the at least one connection structure.
  • An inventive handlebar is thus made of a fiber-plastic composite, in which case a support structure of continuous fibers is combined with at least one connecting structure of short or long fibers.
  • a handlebar can be realized, which is characterized by a low weight and a good load capacity. Because by the continuous fibers of the support structure high loads can be absorbed by appropriate alignment of the fibers, while the at least one connecting structure by their short or long fibers increases the stability by targeted stiffening of the support structure. Overall, this makes it possible to absorb both tensile and compressive forces, as well as bending loads and torsional loads by the handlebars.
  • the link according to the invention preferably comprises two pivot points and is accordingly realized as a 2-point link, the support structure extending between the two pivot points.
  • the handlebar according to the invention is equipped with three or more hinge points between which the support structure extends.
  • the link according to the invention is designed in particular for a suspension and provided here as a guide arm, support arm or as an auxiliary link.
  • an inventively designed handlebar but could also be used in a steering or a roll suspension of a motor vehicle as a tie rod / steering link or as stabilizer isatorlenker used.
  • a sensor system can be integrated into the handlebar, by means of which a change in the fiber composite structure of the arm can be recognized and / or loads or overloads or overstresses can be detected.
  • an elastomer material could also be integrated into the fiber composite structure to form a laminate, in order to realize an improvement in the acoustic properties in the corresponding area in the sense of acoustic damping.
  • in the respective area by the integration of elastomers in the fiber-reinforced plastic composite also impact and splinter protection can be realized.
  • the at least one connecting structure is provided in particular for stiffening the supporting structure and thereby integrally connected to it by connecting the supporting structure and the at least one connecting structure in a not yet fully cured state of the supporting structure. Because due to the not yet complete curing of the support structure, a material bond between the support structure and the at least one connection structure is formed, which then harden together as part of the manufacturing process. As a result, the load capacity of the handlebar according to the invention can be increased due to the improved connection of support structure and connection structure. Furthermore, the at least one connecting structure can also be provided specifically at kinematic points of the link, for example in the region of articulation points of the link.
  • the at least one connecting structure produces the connection of the individual hinge point to the support structure, that is, between the support structure and the respective hinge point is provided.
  • a coherent connection structure is configured, but also a plurality of separate connection structures may be present, which are provided specifically in certain areas of the support structure.
  • connection structure is designed in the sense of the invention, in particular rib-like, in order to realize the desired stiffening of the support structure.
  • walls of a ribbing with respect to a longitudinal central axis of the arm can be arranged substantially diagonally diamond-shaped.
  • the support structure and the at least one connecting structure are each formed from a respective duroplastic plastic semi-finished product.
  • the support structure and the at least one connecting structure in a link according to the invention each consist of a thermosetting fiber-plastic composite.
  • Such a configuration has the advantage that can be realized due to the use of thermosetting materials, a resilient handlebar whose capacity is not dependent on the operating temperature. After all, a thermosetting material no longer undergoes temperature-induced changes in shape after curing, whereas deformations can occur in thermoplastic materials in certain temperature ranges. Since a handlebar is a suspension but a rigid connection and accordingly unwanted deformations are to be avoided, can be realized by manufacturing the handlebar from thermoset plastic semi-finished a suitable handlebars.
  • the continuous fiber-reinforced plastic semifinished product can be in particular in the form of pre-impregnated fibers (towpreg), as semi-finished textile product (prepreg), in the form of dry fibers or as textile semifinished product (preforms) or as advance preparation by Resin Transfer Molding (RTM) or prepreg compression Molding (PCM) produced semi-finished product.
  • pre-impregnated fibers such as pre-impregnated fibers (towpreg)
  • prepreg semi-finished textile product
  • preforms textile semifinished product
  • RTM Resin Transfer Molding
  • PCM prepreg compression Molding
  • the plastic semifinished product of the at least one connecting structure is preferably present either as a short-fiber-reinforced plastic semifinished product, for example in the form of bulk molding compound (BMC) or as thermoset injection molding, or is designed as a long-fiber-reinforced semifinished plastic product, in particular in the form of sheet molding compound (SMC).
  • BMC bulk molding compound
  • SMC sheet molding compound
  • fibers such as carbon, glass, aramid, basalt, etc.
  • the surrounding plastic matrix may in principle be selected from different duroplastic materials, such as epoxy, polyurethane, vinyl ester, etc. In this case, the materials used may deviate between the support structure and the at least one connection structure or, in the case of several connection structures, also between the connection structures.
  • first at least two hinge points of the link are wrapped in preforming of the support structure, wherein the support structure is then connected in the manufacturing process cohesively with the at least one connection structure.
  • the support structure is formed by means of wet winding process or winding process with Towpreg by the at least two hinge points are wrapped with the fibers.
  • the windings are performed on later used bearing bushes for joints of the handlebar.
  • a winding of the support structure to an already prefabricated connection structure can be completed, both of which are then completely cured in a common process step.
  • an inner region is defined by the support structure, in which the at least one connection structure is provided.
  • the support structure is accordingly manufactured at the Lenden handlebar provided as an outer winding, which surrounds the stiffening, at least one connection structure.
  • the support structure is connected to the at least one connecting structure.
  • the support structure is realized as an inner winding, which has the advantage over an outer winding that the support structure can be better protected by the surrounding connection structure from external influences.
  • first hinge points of the link to be wrapped with the support structure when realizing the inner support structure.
  • At least one insert plate is provided, which was also prefabricated as a preform and is connected in the manufacturing process cohesively with the at least one connecting structure.
  • the use of at least one insert plate has the advantage that in this way the load capacity of the handlebar according to the invention can be further increased.
  • the at least one insert plate is designed as a continuous fiber plastic composite, by being made of a continuous fiber-reinforced plastic semifinished product.
  • the advantage here is that according to a selected layer structure of the insert plate and thus the orientation of the fibers can be adapted to expected load conditions can be realized.
  • the individual layers of the layer structure can have rectified or differently oriented fibers.
  • an insert plate made of a continuous fiber-reinforced plastic semi-finished product is also not yet fully cured with the other components connected.
  • the at least one insert plate or even in the case of several insert plates, a single insert plate can be produced from a short- or long-fiber-reinforced plastic semifinished product or metal.
  • the at least one insert plate is also embedded in the connection structure without forming a material bond.
  • an insert plate could also be completely eliminated in a handlebar according to the invention.
  • the components to be joined in the manufacturing process by hot pressing together.
  • the components are placed in a reheated tool and this closed to start the pressing process. Due to the temperature and the pressure in the cavity, the at least one connecting structure begins to equalize and harden the tool-provided contour. In the course of the hot pressing process then harden the support structure and possibly also the at least one insert plate.
  • a joint in the form of a rubber bearing or a ball joint is provided at a respective pivot point of the handlebar.
  • a ball joint and at the other hinge point may be provided a rubber bearing or also be present at both hinge points rubber bearings or ball joints.
  • the respective joint is miteingebettet already in the course of hot pressing.
  • the production cost can be significantly reduced, since all components are connected together in the context of a manufacturing step.
  • a respective sensor of the handlebars are already miteingebettet.
  • the corresponding joints are used only after curing of the fiber-plastic composite, in which case optionally in the course of hot pressing corresponding bearing bushes, in particular in the form of metallic bushings are provided.
  • An inventively designed handlebar is in particular part of a wheel suspension of a motor vehicle and is then provided here as a guide arm, as a support arm or as an auxiliary link.
  • a suspension preferably comprises a plurality of handlebars designed according to the invention.
  • the invention is not limited to the specified combination of the features of the independent or the dependent claims. There are also opportunities to combine individual features, even if they emerge from the claims, the following description of preferred embodiments of the invention o- directly from the drawings.
  • the reference of the claims to the drawings by use of reference numerals is not intended to limit the scope of the claims.
  • Fig. 1 views of a handlebar according to a first embodiment of the
  • FIG. 2 shows a schematic sequence of a method for producing the link of FIG. 1;
  • Fig. 3 is a disassembled view of the handlebar of Fig. 1;
  • Fig. 4 views of a handlebar according to a second embodiment of the invention.
  • Fig. 5 views of a handlebar according to a third embodiment of the
  • Fig. 1 views of a handlebar 1 are shown according to a first embodiment of the invention, wherein the upper view shows a perspective view of the handlebar 1 and the lower view shows a sectional view desselbigen.
  • the handlebar 1 is designed here as a 2-point handlebar with two pivot points 2 and 3, wherein at the hinge point 2, a joint in the form of a ball joint 4 and at the hinge point 3 - present not shown in detail - Joint is provided in the form of a rubber bearing 5.
  • the handlebar 1 consists of a fiber-plastic composite and thereby comprises a support structure 6, which extends between the hinge points 2 and 3 and is composed of a thermosetting continuous fiber-plastic composite, in particular CFRP or GFRP.
  • the support structure 6 defines an inner region 7, in which the hinge points 2 and 3 are located.
  • the hinge points 2 and 3 and thus also the ball joint 4 and the rubber bearing 5 are connected to the support structure 6 via a connection structure 8, which consists of a thermosetting short fiber plastic composite and the inner region 7 of the support structure 6 largely fills.
  • the connecting structure 8 also forms a ribbing 9, which - as can be seen in particular from the top view - is designed in the longitudinal direction of the handlebar 1 diagonal diamond-shaped.
  • an insert plate 10 made of a thermosetting continuous fiber-plastic composite is embedded in the connection structure 8, as can be seen in the lower sectional view in FIG. 1.
  • a - not shown here - be embedded with sensor technology.
  • connection structure 8 By the hinge points 2 and 3 surrounding support structure 6 are mainly absorbed tensile loads on the continuous fibers, in combination with the stiffeners on the connecting structure 8 and pressure loads can be accommodated.
  • the internal connection structure 8 additionally provides stability with regard to bending loads along and transversely to the fiber direction of the support structure 6 and increases a moment of resistance in the case of torsional loads.
  • the additionally provided insert plate 10 made of continuous fibers provides further reinforcement in the axial direction of the link 1 and increases a moment of resistance to bending and torsion. In this case, the connection structure 8 is connected to both the support structure 6, and the insert plate 10 cohesively.
  • plastic semi-finished products 11 and 12 for the support structure 6 and the insert plate 10 are prepared in advance.
  • the plastic semi-finished products 11 and 12 are available as duroplastic endless fiber reinforced plastic semi-finished products, wherein in the case of the plastic semi-finished product 11 for the support structure 6 preimpregnated continuous fibers are wound in the context of a wet winding process or a winding process with Towpreg about two points of articulation 2 and 3 representing points.
  • the plastic semi-finished product 12 for the insert plate 10 a plurality of pre-impregnated textile semi-finished textile products are stacked to form a layer structure, in which case an orientation of the continuous fibers per layer is adapted to the later expected load.
  • the individual layers may have the same fiber orientation or different fiber orientations of the layers stacked on top of each other are selected.
  • the plastic semifinished product 13 for the connection structure 8 is formed by a short-fiber-reinforced plastic semi-finished product, wherein it is present in particular as fiberglass or CFRP in the form of bulk molding compound (BMC) or sheet molding compound (SMC), or as thermoset injection molding.
  • BMC bulk molding compound
  • SMC sheet molding compound
  • thermoset injection molding thermoset injection molding.
  • the plastic semi-finished products 11 to 13 are then positioned in a tool 15 together with the ball joint 4 and the rubber bearing 5, and the sensor 14 to each other, wherein the plastic semi-finished products 11 and 12 while not yet fully cured as a preform.
  • the insertion of the components in the tool 15 should take place close to the prefabrication of the plastic semi-finished products 11 and 12 in order to avoid contamination.
  • a layer below and above the future insert plate 10 can additionally be inserted in order to guarantee a uniform distribution around the insert plate 10.
  • the reheated tool 15 is closed and started a hot pressing process.
  • the plastic semi-finished product 13 begins to equalize and harden by the temperature and the pressure in the cavity of the tool-defined contour.
  • the semi-finished plastic products 11 and 12 harden to the support structure 6 and the insert plate 10, wherein thereby form the cohesive connections with the connecting structure 8.
  • the ball joint 4, the rubber bearing 5 and the sensor 14 are embedded as part of the curing process.
  • the finished handlebar 1 can be removed.
  • the items of the handlebar 1 are shown again, from which this is composed.
  • the support structure 6 of the inner region 7 can be detected, in which the connection structure 8, the insert plate 10 and the rubber bearing 5 and the ball joint 4 are received.
  • FIG. 4 shows views of a link 16 according to a second embodiment of the invention.
  • a support structure 17, which runs between two hinge points 18 and 19 of the link 16 is formed on the inside of a connecting structure 20.
  • the support structure 17 is thus surrounded by the connection structure 20, wherein the support structure 17, as in the previous variant, consists of a thermosetting continuous fiber-plastic composite and is integrally connected to the connection structure 20.
  • the connection structure 20 again consists of a thermoset short fiber plastic composite.
  • an insert plate 21 is provided from a thermosetting continuous fiber-plastic composite. Also otherwise corresponds to the variant of FIG. 4 of the previous variant, so that reference is made to the described.
  • the handlebar 16 is made in the manner described for Fig. 2 way.
  • FIG. 5 also shows a view of a link 22 according to a third embodiment of the invention.
  • the handlebar 22 is manufactured analogously to the method described for Fig. 2, in which case instead of a ball joint, a rubber bearing is provided.
  • a load-bearing handlebar made of a fiber-plastic composite can be realized.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un bras de suspension (1), en particulier d'un bras de suspension pour une suspension de roue, le bras de suspension (1) étant fabriqué à partir d'une structure de support (6) et d'au moins une structure de liaison (8), la structure de support (6) étant formée à partir d'un produit semi-fini (11) en matière plastique renforcée par des fibres continues et ladite au moins une structure de liaison (8) étant formée à partir d'un produit semi-fini (13) en matière plastique renforcée par des fibres courtes ou longues. La structure de support (6) est préformée en tant que préforme et est raccordée, par liaison de matière, à l'état non encore complètement durci, à ladite au moins une structure de liaison (8) dans un processus de fabrication. L'invention vise à mettre au point un bras de suspension (1) caractérisé par un poids faible et une capacité de charge élevée. A cet effet, la structure de support (6) et ladite au moins une structure de liaison (8) sont chacune formées à partir d'un demi-produit en matière plastique thermodurcissable (11, 13).
PCT/EP2017/070452 2016-11-24 2017-08-11 Procédé de fabrication d'un bras de suspension, ainsi que bras de suspension et suspension de roue WO2018095600A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016223323.8A DE102016223323A1 (de) 2016-11-24 2016-11-24 Verfahren zur Herstellung eines Lenkers, sowie Lenker und Radaufhängung
DE102016223323.8 2016-11-24

Publications (1)

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WO2018095600A1 true WO2018095600A1 (fr) 2018-05-31

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WO2019101470A1 (fr) * 2017-11-23 2019-05-31 Zf Friedrichshafen Ag Procédé de fabrication d'une pièce de liaison au sol et pièce de liaison au sol

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DE102018126998A1 (de) * 2018-10-29 2020-04-30 Boge Elastmetall Gmbh Verfahren zur Herstellung eines Lenkers oder Lenkerkörpers aus endlosfaserverstärktem Kunststoff
DE102020212624A1 (de) 2020-10-06 2022-04-07 Zf Friedrichshafen Ag Mehrpunktlenker für ein Fahrwerk eines Fahrzeugs

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EP1308265A1 (fr) * 2001-11-02 2003-05-07 BPW Bergische Achsen Kommanditgesellschaft Pièce moulée allongée de matière composite renforcée par des fibres
DE69836028T2 (de) * 1997-08-13 2007-05-10 Maclean-Fogg Co., Wheeling Zusammengesetztes verbindungselement
DE102011003971A1 (de) 2011-02-11 2012-08-16 Zf Friedrichshafen Ag Faserverbund-Hybridlenker
DE102012213664A1 (de) * 2012-08-02 2014-02-06 Zf Friedrichshafen Ag Strebe
DE102013208278A1 (de) * 2013-05-06 2014-11-06 Bayerische Motoren Werke Aktiengesellschaft Faserverbundbauteil für ein Fahrzeug
WO2016005686A1 (fr) * 2014-07-07 2016-01-14 Safran Procede de fabrication de piece en materiau composite comportant au moins une portion formant portion d'introduction d'effort ou surepaisseur locale
DE102014214827A1 (de) * 2014-07-29 2016-02-04 Zf Friedrichshafen Ag Lenker sowie Verfahren zu dessen Herstellung

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DE69836028T2 (de) * 1997-08-13 2007-05-10 Maclean-Fogg Co., Wheeling Zusammengesetztes verbindungselement
EP1308265A1 (fr) * 2001-11-02 2003-05-07 BPW Bergische Achsen Kommanditgesellschaft Pièce moulée allongée de matière composite renforcée par des fibres
DE102011003971A1 (de) 2011-02-11 2012-08-16 Zf Friedrichshafen Ag Faserverbund-Hybridlenker
DE102012213664A1 (de) * 2012-08-02 2014-02-06 Zf Friedrichshafen Ag Strebe
DE102013208278A1 (de) * 2013-05-06 2014-11-06 Bayerische Motoren Werke Aktiengesellschaft Faserverbundbauteil für ein Fahrzeug
WO2016005686A1 (fr) * 2014-07-07 2016-01-14 Safran Procede de fabrication de piece en materiau composite comportant au moins une portion formant portion d'introduction d'effort ou surepaisseur locale
DE102014214827A1 (de) * 2014-07-29 2016-02-04 Zf Friedrichshafen Ag Lenker sowie Verfahren zu dessen Herstellung

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019101470A1 (fr) * 2017-11-23 2019-05-31 Zf Friedrichshafen Ag Procédé de fabrication d'une pièce de liaison au sol et pièce de liaison au sol

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