DE102011018217A1 - Method for manufacturing spring for insertion into undercarriage of vehicle, involves removing rod-shaped core element from spring element that is separated from molding tool, where core element is made of rubber material - Google Patents

Method for manufacturing spring for insertion into undercarriage of vehicle, involves removing rod-shaped core element from spring element that is separated from molding tool, where core element is made of rubber material Download PDF

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Publication number
DE102011018217A1
DE102011018217A1 DE201110018217 DE102011018217A DE102011018217A1 DE 102011018217 A1 DE102011018217 A1 DE 102011018217A1 DE 201110018217 DE201110018217 DE 201110018217 DE 102011018217 A DE102011018217 A DE 102011018217A DE 102011018217 A1 DE102011018217 A1 DE 102011018217A1
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Germany
Prior art keywords
spring
core element
spring element
rod
shaped core
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DE201110018217
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German (de)
Inventor
Prof. Dr.-Ing. habil. Hufenbach Werner
Dr.-Ing. Lepper Martin
Dipl.-Ing. Werner Jens
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ThyssenKrupp AG
ThyssenKrupp Federn und Stabilisatoren GmbH
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Leichtbau Zentrum Sachsen GmbH
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Priority to DE201110018217 priority Critical patent/DE102011018217A1/en
Publication of DE102011018217A1 publication Critical patent/DE102011018217A1/en
Withdrawn legal-status Critical Current

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    • 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
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/22—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
    • B29C70/222—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being shaped to form a three dimensional configuration
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02—Bending or folding
    • B29C53/12—Bending or folding helically, e.g. for making springs
    • 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
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/38—Automated lay-up, e.g. using robots, laying filaments according to predetermined patterns
    • 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
    • B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
    • B29C70/52—Pultrusion, i.e. forming and compressing by continuously pulling through a die
    • B29C70/521—Pultrusion, i.e. forming and compressing by continuously pulling through a die and impregnating the reinforcement before the die
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/366—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers made of fibre-reinforced plastics, i.e. characterised by their special construction from such materials
    • F16F1/3665—Wound springs
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/24—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using threads
    • 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
    • B29L2031/774—Springs
    • B29L2031/7742—Springs helical springs

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

Abstract

The method involves coating a rod-shaped core element (1) with a fabric sleeve (3) based on a concave profile of a spring element. The fabric sleeve is impregnated with a reactive resin system (6). The core element is heated together with the impregnated fabric sleeve up to thermal mold temperatures. The core element is wrapped and cooled with the fabric sleeve for production of a spring form. The core element is removed from the spring element that is separated from a molding tool (8), where the core element is made of rubber material, thermoplastic or low-melting alloys.

Description

Die Erfindung betrifft ein Verfahren zur Herstellung von Federelementen aus Faserverbundwerkstoffen, insbesondere Federn zum Einsatz in Fahrwerken von Fahrzeugen jedweder Art sowie in technischen Anlagen der Industrie.The invention relates to a method for the production of spring elements made of fiber composite materials, in particular springs for use in trolleys of vehicles of any kind and in industrial plants of the industry.

Derartige Federn sind bereits hinreichend bekannt, es handelt sich meist um metallische Schraubenfedern, die aus einem Federdraht durch Kaltumformung in einer Federbiegemaschine hergestellt werden. Dieser Federdraht kann auch hohl ausgebildet sein.Such springs are already well known, it is usually metallic coil springs, which are made of a spring wire by cold forming in a spring-bending machine. This spring wire can also be hollow.

Bekannt sind auch Federn, die aus Faserverbundwerkstoffen hergestellt sind. Dazu wird ein textiler Schlauch durch Aufwickeln von Gewebe, Einzelfasern oder durch Flechten auf Kerne mit einem vorgegebenen Rohrquerschnitt gebildet.Also known are springs that are made of fiber composites. For this purpose, a textile tube is formed by winding tissue, single fibers or by braiding on cores with a predetermined pipe cross-section.

In EP 637 700 B1 sind Federn mit unterschiedlich eingesetzter Fasermenge in Bezug auf die Zug-, Druckrichtung des Federelementes bekannt.In EP 637 700 B1 are known springs with different amounts of fiber used in relation to the tensile, compression direction of the spring element.

Ein weiteres Schutzrecht, die japanische Schrift JP 2003 300 256 , offenbart das Flechten von mit Reaktionsharz getränkten Fasern, die auf ein axial angeordnetes Garn aufgewickelt und mit einem Schrupfband umwickelt sind, wobei diese Anordnung zur Bildung einer Schraubenfeder auf einen Nutenkern aufgewickelt wird.Another protective right, the Japanese writing JP 2003 300 256 discloses the braiding of reaction resin impregnated fibers wound on an axially disposed yarn and wrapped with a slip band, this assembly being wound onto a groove core to form a coil spring.

Nachteile dieser Lösungen sind, das beim Aufwickeln der Fasern zur Bildung eines Textilschlauches die Fasern mit flüssigem Reaktionsharz getränkt sind, was zu großen Verunreinigungen im gesamten Herstellungsprozess führt.Disadvantages of these solutions are that when winding the fibers to form a textile tube, the fibers are impregnated with liquid reaction resin, which leads to large impurities in the entire manufacturing process.

Da die Aushärtung des mit dem Reaktionsharzsystem benetzten und zur Feder geformten Grundkörpers verhältnismäßig lange Zeit beansprucht, bevor das hergestellte Federelement vom Nutenkern gelöst werden kann, ist die Werkzeugausnutzung nicht optimal.Since the curing of the wetted with the reaction resin system and molded to the spring body requires relatively long time before the spring element produced can be solved by the groove core, the tool utilization is not optimal.

Andere, die Federgeometrie stabilisierende Verfahrensweisen sind zeit- und kostenaufwändig.Other spring geometry stabilizing procedures are time consuming and costly.

Es ist deshalb Aufgabe der Erfindung, ein Verfahren zur Herstellung von Federelementen aus Faserverbundwerkstoffen so weiterzubilden, dass keine flüssigen Reaktionsharzsysteme eingesetzt werden müssen, die zur Herstellung der Federelemente aus Faserverbundwerkstoffen notwendig sind.It is therefore an object of the invention to develop a method for producing spring elements made of fiber composite materials so that no liquid reaction resin systems must be used, which are necessary for the preparation of the spring elements made of fiber composites.

Des Weiteren sollten schnelle Taktzeiten bei der Herstellung ermöglicht werden, die durch Umformung getrennt von der Nachvernetzung erfolgen soll.Furthermore, fast cycle times in the production should be made possible, which should take place by forming separately from the post-crosslinking.

Notwendig ist es aus ökonomischer Sicht auch, die automatisierte Vorfertigung des Kernelementes bis zum Wickeln der Federstruktur effektiv zu gestalten.From an economic point of view, it is also necessary to effectively design the automated prefabrication of the core element until the spring structure is wound.

Die Aufgabe der Erfindung wird durch ein Verfahren mit den Merkmalen des Patentanspruches 1 gelöst.The object of the invention is achieved by a method having the features of claim 1.

Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den abhängigen Patentansprüchen 2 bis 11.Advantageous embodiments and developments of the invention will become apparent from the dependent claims 2 to 11.

Nachstehend wird das erfindungsgemäße Verfahren anhand eines Ausführungsbeispieles näher erläutert. Die dazugehörige Zeichnung zeigt inThe method according to the invention will be explained in more detail below with reference to an exemplary embodiment. The accompanying drawing shows in

1 eine prinzipielle Darstellung der Herstellung des stangenförmigen Kernelementes, das mit einem Textil schlauch überzogen ist, 1 a schematic representation of the production of the rod-shaped core element, which is covered with a textile hose,

2 eine prinzipielle Darstellung des Aufwickelns des stangenförmigen Kernelementes auf ein mit formgerecht ausgebildeten Nuten versehenes Formwerkzeug, 2 a schematic representation of the winding of the rod-shaped core element on a form-fitting grooves provided with molding tool,

3 aufgewickeltes Formwerkzeug nach 2, 3 after wound-up mold 2 .

4 Vorrichtung zur Beheizung des Kernelementes zur Herstellung des Federelementes und 4 Apparatus for heating the core element for producing the spring element and

5 eine Ausführung eines Stützwerkzeuges zur Formgestaltung des Federelementes. 5 an embodiment of a support tool for shaping the spring element.

In 1 ist die Herstellung des stangenförmigen Kernelementes 1 dargestellt, das im Beispiel aus einem flexiblen Schlauch besteht und das mittels einer Vorrichtung 2, einer im Beispiel eingesetzten Rundflechtmaschine, mit einem Textilschlauch 3 umwickelt wird.In 1 is the production of the rod-shaped core element 1 represented, which consists in the example of a flexible hose and by means of a device 2 , a round braiding machine used in the example, with a textile hose 3 is wrapped.

Dabei erfolgt die Fertigung des Textilschlauches 3 durch Flechten von textilen Fasern auf das stangenförmige Kernelement 1, welcher mit den aufgeflochtenen Fasern durch ein Pultrusionswerkzeug 4 gezogen, innerhalb eines Kalibrier- und Härtungsbereiches 5 mit einem Reaktionsharzsystem 6 getränkt und bis zu einem eigenstabilen, unschmelzbaren Zustand teilvernetzt wird. Das stangenförmige Kernelement 1 mit erzeugtem Textilschlauch 3 wird anschließend bis zu seiner Umformung kühl gelagert. Dazu durchläuft es eine Abzugsvorrichtung 6.In this case, the production of the textile tube takes place 3 by braiding textile fibers on the rod-shaped core element 1 which with the braided fibers through a pultrusion tool 4 drawn, within a calibration and curing range 5 with a reaction resin system 6 soaked and partially cross-linked to an inherently stable, infusible state. The rod-shaped core element 1 with generated textile hose 3 is then stored cool until its transformation. It goes through a trigger device 6 ,

Im Weiteren wird zur Umformung des stangenförmigen Kernelementes 1 mit Textilschlauch 3 dieses wenigstens partiell im Beispiel mittels einer Heizluftbeheizung 11 erwärmt und auf ein Formwerkzeug 7, das Nuten 8 die der Form und der Steigung des zu bildenen Federelementes enthält, gewickelt – siehe 2, 3, 4.In the following, the deformation of the rod-shaped core element 1 with textile hose 3 this at least partially in the example by means of Heizluftbeheizung 11 heated and onto a mold 7 , the grooves 8th the shape and the slope of the spring element to be formed, wrapped - see 2 . 3 . 4 ,

5 zeigt ein weiteres Formelement 12, das der Formgebung und der Gestaltung des äußeren Profilquerschnittes des Federelementes 10 dient. Es stützt mit oder nach dem Aufwickeln des stangenförmigen Kernelementes 1 mit Textilschlauch 3 die Formgebung des Federelementes 10. 5 shows another form element 12 , the shaping and the design of the outer profile cross-section of the spring element 10 serves. It supports with or after winding up the bar-shaped core element 1 with textile hose 3 the shape of the spring element 10 ,

Nach oder mit der Abkühlung des hergestellten Federelementes 10, das noch das Kernelement 1 aufweist, jedoch der hergestellte Textilschlauch 3 nun eigenstabile, unschmelzbare Eigenschaften aufweist, kann das Kernelement 1 aus dem Federelement 10 entfernt werden. Je nach Materialeinsatz geschieht das mittels Ausschmelzen, Ausspülen mit Hilfe von Salzen oder Sandkernen, Zersetzen mittels chemischer Lösungen oder thermischen Abbau oder durch mechanische Entfernung.After or with the cooling of the manufactured spring element 10 that is still the core element 1 has, however, the fabric hose produced 3 now has intrinsically stable, infusible properties, the core element 1 from the spring element 10 be removed. Depending on the material used, this is done by means of melting, rinsing with the aid of salts or sand cores, decomposition by means of chemical solutions or thermal degradation or by mechanical removal.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
stangenförmiges Kernelementrod-shaped core element
22
Vorrichtung zum Umwickeln des KernelementesDevice for wrapping the core element
33
Textilschlauchtextile hose
44
Pultrusionswerkzeugpultrusion
55
Kalibriert- und HärtungsbereichCalibration and curing area
66
ReaktionsharzsystemReactive resin system
77
Abzugsvorrichtungoff device
88th
Formwerkzeugmold
99
Nutengroove
1010
Federelementspring element
1111
HeizluftbeheizungHeizluftbeheizung
1212
weiteres Formelementanother form element

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

  • EP 637700 B1 [0004] EP 637700 B1 [0004]
  • JP 2003300256 [0005] JP 2003300256 [0005]

Claims (11)

Verfahren zur Herstellung von Federelementen aus Faserverbundwerkstoffen, insbesondere Federn zum Einsatz in Fahrwerken von Fahrzeugen jedweder Art sowie in technischen Anlagen ein Verfahren zur Herstellung von Federelementen aus Faserverbundwerkstoffen so weiterzubilden, dass keine flüssigen Reaktionsharzsysteme eingesetzt werden müssen, die zur Herstellung der Federelemente aus Faserverbundwerkstoffen notwendig sind der Industrie, dadurch gekennzeichnet, dass ein entsprechend eines zu erzeugenden Hohlprofiles des Federelementes (10) geformtes stangenförmiges Kernelement (1) mit einem Textilschlauch (3) überzogen wird, der mit einem konsolidierbaren Reaktionsharzsystem (6) imprägniert wird und der Textilschlauch (3) bis zu einem eigenstabilen Aushärtezustand ausgehärtet wird, dass das stangenförmige Kernelement (1) zusammen mit dem imprägnierten Textilschlauch (3) auf Thermoformtemperatur erhitzt wird, dass das nun formbare stangenförmige Kernelement (1) mit Textilschlauch (3) zur Herstellung der Federform und der Länge des Federelementes um ein Formwerkzeug (8) gewickelt und anschließend abgekühlt, das Kernelement (1) aus dem Federelement (10) entfernt werden kann und das Federelement (10) vom Formwerkzeug (8) getrennt wird.Process for the preparation of spring elements made of fiber composite materials, in particular springs for use in chassis of vehicles of any kind and in technical systems to develop a process for the production of spring elements made of fiber composites so that no liquid reaction resin systems must be used, which are necessary for the production of spring elements made of fiber composites the industry, characterized in that a corresponding to a hollow profile of the spring element to be produced ( 10 ) shaped rod-shaped core element ( 1 ) with a textile hose ( 3 ) coated with a consolidatable reaction resin system ( 6 ) is impregnated and the textile hose ( 3 ) is hardened to an inherently stable curing state that the rod-shaped core element ( 1 ) together with the impregnated textile tube ( 3 ) is heated to thermoforming temperature that the now malleable rod-shaped core element ( 1 ) with textile hose ( 3 ) for producing the spring shape and the length of the spring element around a molding tool ( 8th ) and then cooled, the core element ( 1 ) from the spring element ( 10 ) can be removed and the spring element ( 10 ) from the mold ( 8th ) is separated. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Verbund aus Textilschlauch (3) und Reaktionsharzsystem (6) bis zu einem unschmelzbaren Aushartezustand ausgehärtet wird.A method according to claim 1, characterized in that the composite textile hose ( 3 ) and reaction resin system ( 6 ) is cured to an infusible Aushartezustand. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, dass die Thermoformtemperatur unterhalb der Schmelz- oder Zersetzungstemperatur des Materials für das Kernelement (1) liegt.Method according to claims 1 and 2, characterized in that the thermoforming temperature is below the melting or decomposition temperature of the material for the core element ( 1 ) lies. Verfahren nach Anspruch 1 bis 3, dadurch gekennzeichnet, dass das erhitzte, formbare stangenförmige Kernelement (1) mit dem Textilschlauch (3) in eine fortlaufende Nut (9) des zylinderförmigen Formwerkzeuges (8) gewickelt wird, wobei die Nut (9) eine, des zu erzeugenden Federelementes (10) entsprechende räumliche Bahn beschreibt und dem halben Federquerschnitt entspricht.Method according to claim 1 to 3, characterized in that the heated, formable rod-shaped core element ( 1 ) with the textile tube ( 3 ) into a continuous groove ( 9 ) of the cylindrical mold ( 8th ) is wound, wherein the groove ( 9 ) one of the spring element to be generated ( 10 ) describes corresponding spatial path and corresponds to half the spring cross-section. Verfahren nach Anspruch 1 bis 4, dadurch gekennzeichnet, dass Nachverformungsschritte durchgeführt werden und das Federelement nachvernetzt wird.A method according to claim 1 to 4, characterized in that Nachverformungsschritte be performed and the spring element is postcrosslinked. Verfahren nach Anspruch 1 und wenigstens einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, dass während des Aufwickelprozesses des stangenförmigen Kernelementes (1) um das Formwerkzeug (8) der äußere Profilquerschnitt des Federelementes (10) durch wenigstens ein weiteres Formelement (12) gestützt wird.A method according to claim 1 and at least one of claims 2 to 5, characterized in that during the winding process of the rod-shaped core element ( 1 ) around the mold ( 8th ) the outer profile cross section of the spring element ( 10 ) by at least one further form element ( 12 ). Verfahren nach Anspruch 1 und wenigstens einen der Ansprüche 2 bis 6, dadurch gekennzeichnet, dass das Kernelement (1) durch Ausschmelzen, Ausspülen, thermisches oder chemisches Zersetzen oder mechanisch entfernt wird.Method according to claim 1 and at least one of claims 2 to 6, characterized in that the core element ( 1 ) is removed by smelting, rinsing, thermal or chemical decomposition, or mechanically removed. Verfahren nach Anspruch 1 und wenigstens einen der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass der Textilschlauch (3) geflochten oder gewickelt wird oder aus abgelegten Fasern hergestellt ist.Method according to claim 1 and at least one of claims 2 to 7, characterized in that the textile tube ( 3 ) is braided or wound or made of discarded fibers. Verfahren nach Anspruch 1 und wenigstens einen der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass das Kernelement (1) aus einem Gummimaterial, einem Thermoplast oder aus niedrig schmelzenden Legierungen besteht.Method according to claim 1 and at least one of claims 2 to 8, characterized in that the core element ( 1 ) consists of a rubber material, a thermoplastic or low-melting alloys. Verfahren nach Anspruch 1 und wenigstens einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass bei ausschmelzbaren Kernelementen (1) die Kernentformung auch während der Nachvernetzung erfolgen kann.A method according to claim 1 and at least one of claims 2 to 9, characterized in that in ausschmelzbaren core elements ( 1 ) Kernentformung can take place during the post-crosslinking. Verfahren nach Anspruch 1 und wenigstens einem der Ansprüche 2 bis 10, dadurch gekennzeichnet, dass Nachverformungen durch lokales Erwärmen einzelner Federelementteile (10) erfolgt.A method according to claim 1 and at least one of claims 2 to 10, characterized in that post-deformations by local heating of individual spring element parts ( 10 ) he follows.
DE201110018217 2010-04-19 2011-04-19 Method for manufacturing spring for insertion into undercarriage of vehicle, involves removing rod-shaped core element from spring element that is separated from molding tool, where core element is made of rubber material Withdrawn DE102011018217A1 (en)

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DE102010015594.2 2010-04-19
DE102010015594 2010-04-19
DE201110018217 DE102011018217A1 (en) 2010-04-19 2011-04-19 Method for manufacturing spring for insertion into undercarriage of vehicle, involves removing rod-shaped core element from spring element that is separated from molding tool, where core element is made of rubber material

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2986988A1 (en) * 2012-02-21 2013-08-23 Peugeot Citroen Automobiles Sa Method for manufacturing helical spring of damping device of car, involves deforming profile element until obtaining spring with desired shape, and cooling spring until temperature is less than transition temperature to solidify shape
DE102012112937A1 (en) 2012-12-21 2014-06-26 Leichtbau-Zentrum Sachsen Gmbh Device and method for producing a spring made of fiber composite material
CN103991227A (en) * 2014-04-30 2014-08-20 天津工业大学 Production method for constant-section composite-material section material
EP2837488A1 (en) 2013-08-16 2015-02-18 SuperTEX composites GmbH Methode of producing a spring made of composite material
WO2017076963A1 (en) 2015-11-03 2017-05-11 Basf Se Composite element
DE102016210118B3 (en) * 2016-06-08 2017-10-05 Volkswagen Aktiengesellschaft Method for producing screw or coil springs made of a fiber-reinforced material and apparatus for carrying out this method
WO2022074225A1 (en) 2020-10-09 2022-04-14 Fritsch Michael Filament winding device and method for producing an object made of composite material

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Cited By (11)

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FR2986988A1 (en) * 2012-02-21 2013-08-23 Peugeot Citroen Automobiles Sa Method for manufacturing helical spring of damping device of car, involves deforming profile element until obtaining spring with desired shape, and cooling spring until temperature is less than transition temperature to solidify shape
DE102012112937A1 (en) 2012-12-21 2014-06-26 Leichtbau-Zentrum Sachsen Gmbh Device and method for producing a spring made of fiber composite material
EP2934853A1 (en) * 2012-12-21 2015-10-28 Leichtbau-Zentrum Sachsen GmbH Device and method for producing a spring made of fiber composite material
CN105189086A (en) * 2012-12-21 2015-12-23 轻型结构中心萨克森有限公司 Device and method for producing a spring made of fiber composite material
EP2837488A1 (en) 2013-08-16 2015-02-18 SuperTEX composites GmbH Methode of producing a spring made of composite material
WO2015022302A1 (en) * 2013-08-16 2015-02-19 Supertex Composites Gmbh Spring made of composite material
CN103991227A (en) * 2014-04-30 2014-08-20 天津工业大学 Production method for constant-section composite-material section material
WO2017076963A1 (en) 2015-11-03 2017-05-11 Basf Se Composite element
DE102016210118B3 (en) * 2016-06-08 2017-10-05 Volkswagen Aktiengesellschaft Method for producing screw or coil springs made of a fiber-reinforced material and apparatus for carrying out this method
WO2022074225A1 (en) 2020-10-09 2022-04-14 Fritsch Michael Filament winding device and method for producing an object made of composite material
FR3114989A1 (en) * 2020-10-09 2022-04-15 Michaël FRITSCH Filament winding device and method for producing an object in composite material

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