DE102013222775A1 - Wheel carrier in fiber composite construction - Google Patents

Wheel carrier in fiber composite construction Download PDF

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Publication number
DE102013222775A1
DE102013222775A1 DE201310222775 DE102013222775A DE102013222775A1 DE 102013222775 A1 DE102013222775 A1 DE 102013222775A1 DE 201310222775 DE201310222775 DE 201310222775 DE 102013222775 A DE102013222775 A DE 102013222775A DE 102013222775 A1 DE102013222775 A1 DE 102013222775A1
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DE
Germany
Prior art keywords
wheel carrier
fiber composite
fiber
composite material
pivot bearing
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
Application number
DE201310222775
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German (de)
Inventor
Johann Dudkowiak
Michael Keigler
David Keller
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.)
Bayerische Motoren Werke AG
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Bayerische Motoren Werke 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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE201310222775 priority Critical patent/DE102013222775A1/en
Publication of DE102013222775A1 publication Critical patent/DE102013222775A1/en
Pending legal-status Critical Current

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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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
    • 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
    • B29C70/48—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 and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/18—Steering knuckles; King pins
    • 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
    • B29L2031/32—Wheels, pinions, pulleys, castors or rollers, Rims

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Manufacturing & Machinery (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Nach der Erfindung ist ein Verfahren zum Herstellen eines Radträgers für ein Kraftfahrzeug, insbesondere eines Schwenklagers, aus einem Faserverbundwerkstoff, dadurch gekennzeichnet, dass eine Grundstruktur des Radträgers aus einer Faserverbundmasse mit Faserlängen im Bereich zwischen 2 und 100 mm in einer Form gepresst und mittels einer Matrix-Komponente verfestigt wird. Ein nach dem Verfahren hergestellter Radträger ist ebenfalls umfasst.According to the invention, a method for producing a wheel carrier for a motor vehicle, in particular a pivot bearing, made of a fiber composite material, characterized in that a basic structure of the wheel carrier of a fiber composite mass having fiber lengths in the range between 2 and 100 mm pressed in a mold and by means of a matrix Component is solidified. A wheel carrier made by the method is also included.

Description

Die Erfindung betrifft einen Radträger für Fahrzeuge, insbesondere Kraftfahrzeuge, aus Faserverbundwerkstoff, nach dem Oberbegriff des ersten Anspruchs.The invention relates to a wheel carrier for vehicles, in particular motor vehicles, made of fiber composite material, according to the preamble of the first claim.

Ein Radträger für Kraftfahrzeuge, insbesondere an der Vorderachse, also ein Schwenklager, besteht nach dem Stand der Technik aus Metall, insbesondere Stahl oder Aluminium. Teile aus Metall besitzen in der Regel ein größeres Gewicht als Bauteile aus Faserverbundwerkstoff, was auch bereits in der Aufgabe der DE 10 2007 053 120 A1 erkannt wurde, die einen aus einem Faserverbundwerkstoff bestehenden Radträger, insbesondere Schwenklager oder Achsschenkel, vorschlägt, der hohen mechanischen Anforderungen genügt und günstig herstellbar ist. Weiterhin wird ein günstiges Herstellverfahren für einen aus einem Faserverbundwerkstoff bestehenden Radträger, insbesondere Schwenklager oder Achsschenkel, aufgezeigt.A wheel carrier for motor vehicles, in particular on the front axle, ie a pivot bearing, according to the prior art consists of metal, in particular steel or aluminum. Parts made of metal usually have a greater weight than components made of fiber composite material, which is already in the task of DE 10 2007 053 120 A1 was detected, which proposes a consisting of a fiber composite wheel carrier, in particular pivot bearing or stub axle, which meets high mechanical requirements and is inexpensive to produce. Furthermore, a favorable manufacturing method for a consisting of a fiber composite wheel carrier, in particular pivot bearing or stub axle, shown.

Die Erfindung geht von dem Gedanken aus, einen solchen Fahrzeug-Radträger aus Faserverbundwerkstoff durch einen verbesserten Radträger in Faserverbundbauweise zu ersetzten. Dies ist auch die Aufgabe der Erfindung, einen besonderen Radträger aus faserverstärkten Verbundwerkstoffen bereitzustellen, mit gegenüber dem Stand der Technik, bei Bauteilen aus Alu und Stahl, reduzierter Masse. Außerdem soll ein Verfahren zur Herstellung des Radträgers angegeben werden.The invention is based on the idea to replace such a vehicle wheel carrier made of fiber composite material by an improved wheel carrier in fiber composite construction. This is also the object of the invention to provide a special wheel carrier made of fiber-reinforced composite materials, with respect to the prior art, for components made of aluminum and steel, reduced mass. In addition, a method for producing the wheel carrier is to be specified.

Die Aufgabe wird durch die Verfahrensschritte des Anspruchs 1 gelöst. Weitere Ausgestaltungen des Verfahrens und des Radträgers gemäß der Erfindung ergeben sich aus den abhängigen Ansprüchen.The object is achieved by the method steps of claim 1. Further embodiments of the method and the wheel carrier according to the invention will become apparent from the dependent claims.

Nach der Erfindung ist ein Verfahren zum Herstellen eines Radträgers für ein Kraftfahrzeug, insbesondere eines Schwenklagers, aus einem Faserverbundwerkstoff, dadurch gekennzeichnet, dass eine Grundstruktur des Radträgers aus einer Faserverbundmasse mit Faserlängen im Bereich zwischen 2 und 100 mm in einer Form gepresst und mittels einer Matrix-Komponente verfestigt wird. Vorteilhafterweise kommen dabei ein Spritzgussverfahren oder ein SMC-Verfahren zur Anwendung. Für die Faserverbundpressmasse werden kurzfaserige oder langfaserige Faserverbundwerkstoffe eingesetzt, dabei weist die Pressmasse keine oder nur eine schwach ausgeprägte Vorzugsrichtung auf. Zusätzlich bietet sich die Möglichkeit in der Pressmasse Bänder oder Litzen mit einzuarbeiten. Nach Bedarf können die Bauteile durch Einlegen von Endlosfasern verstärkt werden. Besondere Merkmale für die Bauteilgestaltung des Radträgers sind die Entformbarkeit, die Versteifung durch Verrippung, gegebenenfalls mit Hinterschnitten, die durch Schieber erzeugt werden und optionale Hohlräume können durch Einlegen von Kernen erzeugt werden. Nach Bedarf können Endlosfaserbänder, Matten, Schlaufen und/oder Geflechte an der Oberfläche des Radträgers oder im Radträger eingelegt werden. Schnittstellen können durch Einbetten von geeigneten Inlays aus Metall, Kunststoff und/oder Keramik realisiert werden. Ein solcher Radträger bringt eine Gewichtseinsparung mit den Vorteilen einer CO2-Minimierung, einer Komfortverbesserung und einer Fahrdynamikverbesserung. Dabei entstehen kaum Mehrkosten, da die Prozesse großserientauglich sind.According to the invention, a method for producing a wheel carrier for a motor vehicle, in particular a pivot bearing, made of a fiber composite material, characterized in that a basic structure of the wheel carrier of a fiber composite mass having fiber lengths in the range between 2 and 100 mm pressed in a mold and by means of a matrix Component is solidified. Advantageously, an injection molding process or an SMC process are used. Short fiber or long fiber composite materials are used for the fiber composite molding compound, while the molding compound has no or only a weakly preferred direction. In addition, it is possible to incorporate tapes or strands in the molding compound. As required, the components can be reinforced by inserting continuous fibers. Special features for the component design of the wheel carrier are the mold release, the stiffening by ribbing, possibly with undercuts, which are produced by slides and optional cavities can be generated by inserting cores. If required, continuous fiber ribbons, mats, loops and / or braids can be placed on the surface of the wheel carrier or in the wheel carrier. Interfaces can be realized by embedding suitable inlays of metal, plastic and / or ceramic. Such a wheel carrier provides weight savings with the benefits of CO2 minimization, comfort enhancement, and vehicle dynamics enhancement. There are hardly any additional costs because the processes are suitable for mass production.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 102007053120 A1 [0002] DE 102007053120 A1 [0002]

Claims (6)

Verfahren zum Herstellen eines Radträgers für ein Kraftfahrzeug, insbesondere eines Schwenklagers, aus einem Faserverbundwerkstoff, dadurch gekennzeichnet, dass eine Grundstruktur des Radträgers aus einer Faserverbundmasse mit Faserlängen im Bereich zwischen 2 und 100 mm in einer Form gepresst und mittels einer Matrix-Komponente verfestigt wird.Method for producing a wheel carrier for a motor vehicle, in particular a pivot bearing, made of a fiber composite material, characterized in that a basic structure of the wheel carrier is pressed from a fiber composite material having fiber lengths in the range between 2 and 100 mm in a mold and solidified by means of a matrix component. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass ein Spritzgussverfahren oder ein SMC-Verfahren zur Anwendung kommt.A method according to claim 1, characterized in that an injection molding method or an SMC method is used. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass Endlosfaserbänder und/oder Matten und/oder Schlaufen und/oder Geflechte an der Oberfläche des Radträgers oder im Radträger eingelegt werden.A method according to claim 1 or 2, characterized in that continuous fiber ribbons and / or mats and / or loops and / or braids are placed on the surface of the wheel carrier or in the wheel carrier. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass Inlays aus Metall und/oder Kunststoff und/oder Keramik im Radträger eingebettet werden.Method according to one of claims 1 to 3, characterized in that inlays of metal and / or plastic and / or ceramic are embedded in the wheel carrier. Radträger, hergestellt in einem Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass dieser eine verrippte Struktur und/oder einen Hohlraum besitzt.Wheel carrier, produced in a method according to one of claims 1 to 4, characterized in that it has a ribbed structure and / or a cavity. Radträger für ein Kraftfahrzeug aus einem Faserverbundwerkstoff, insbesondere Schwenklager, hergestellt in einem Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Grundstruktur des Radträgers aus einer Faserverbundmasse mit Faserlängen im Bereich zwischen 2 und 100 mm besteht, die mittels einer Matrix-Komponente mittels einer Form verfestigt wird.Wheel carrier for a motor vehicle made of a fiber composite material, in particular a pivot bearing, produced in a method according to one of claims 1 to 4, characterized in that the basic structure of the wheel carrier consists of a fiber composite mass with fiber lengths in the range between 2 and 100 mm, which by means of a matrix Component is solidified by means of a mold.
DE201310222775 2013-11-08 2013-11-08 Wheel carrier in fiber composite construction Pending DE102013222775A1 (en)

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Application Number Priority Date Filing Date Title
DE201310222775 DE102013222775A1 (en) 2013-11-08 2013-11-08 Wheel carrier in fiber composite construction

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3524449A1 (en) * 2018-02-08 2019-08-14 Autotech Engineering Deutschland GmbH Suspension part of a motor vehicle and method for producing a suspension part
CN110816183A (en) * 2018-08-08 2020-02-21 斯凯孚公司 Lightweight suspension assembly for a vehicle and method of making same
DE102017004339B4 (en) * 2017-05-05 2021-05-12 Audi Ag Method for producing a fiber composite component

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007053120A1 (en) 2007-11-08 2009-05-14 Bayerische Motoren Werke Aktiengesellschaft Vehicle-wheel carrier e.g. pivot bearing, manufacturing method, involves strengthening cup-shaped or tub shaped base structure of wheel carriers from laminar textile by matrix components, where textile is formed from fiber material
DE102011003971A1 (en) * 2011-02-11 2012-08-16 Zf Friedrichshafen Ag Fiber composite hybrid handlebar
DE102012021289A1 (en) * 2012-10-30 2014-04-30 Volkswagen Ag Vehicle axle for motor vehicle e.g. front-wheel drive passenger car, has metal made spindle which rotatably supports wheel of motor vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007053120A1 (en) 2007-11-08 2009-05-14 Bayerische Motoren Werke Aktiengesellschaft Vehicle-wheel carrier e.g. pivot bearing, manufacturing method, involves strengthening cup-shaped or tub shaped base structure of wheel carriers from laminar textile by matrix components, where textile is formed from fiber material
DE102011003971A1 (en) * 2011-02-11 2012-08-16 Zf Friedrichshafen Ag Fiber composite hybrid handlebar
DE102012021289A1 (en) * 2012-10-30 2014-04-30 Volkswagen Ag Vehicle axle for motor vehicle e.g. front-wheel drive passenger car, has metal made spindle which rotatably supports wheel of motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017004339B4 (en) * 2017-05-05 2021-05-12 Audi Ag Method for producing a fiber composite component
EP3524449A1 (en) * 2018-02-08 2019-08-14 Autotech Engineering Deutschland GmbH Suspension part of a motor vehicle and method for producing a suspension part
CN110816183A (en) * 2018-08-08 2020-02-21 斯凯孚公司 Lightweight suspension assembly for a vehicle and method of making same
CN110816183B (en) * 2018-08-08 2024-05-31 斯凯孚公司 Lightweight suspension assembly for a vehicle and method of manufacturing the same

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