DE102017107487A1 - Method for producing a torsion bar spring and stabilizer for a chassis of a motor vehicle - Google Patents
Method for producing a torsion bar spring and stabilizer for a chassis of a motor vehicle Download PDFInfo
- Publication number
- DE102017107487A1 DE102017107487A1 DE102017107487.2A DE102017107487A DE102017107487A1 DE 102017107487 A1 DE102017107487 A1 DE 102017107487A1 DE 102017107487 A DE102017107487 A DE 102017107487A DE 102017107487 A1 DE102017107487 A1 DE 102017107487A1
- Authority
- DE
- Germany
- Prior art keywords
- stabilizer
- torsion bar
- molten metal
- bar spring
- chassis
- 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- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D43/00—Mechanical cleaning, e.g. skimming of molten metals
- B22D43/001—Retaining slag during pouring molten metal
- B22D43/004—Retaining slag during pouring molten metal by using filtering means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
- B60G21/0553—Mounting means therefor adjustable
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
- C22B9/023—By filtering
-
- 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
- B60G2206/40—Constructional features of dampers and/or springs
- B60G2206/42—Springs
- B60G2206/427—Stabiliser bars or tubes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Eine Torsionsstabfeder (3) für ein Fahrwerk eines Kraftfahrzeugs wird hergestellt, indem zunächst eine Metallschmelze wird mittels eines keramischen Filters filtriert wird und im Anschluss aus der filtrierten Metallschmelze wird ein Metallprofil (7) gefertigt wird, welches zu einer Torsionsstabfeder (3), insbesondere einer Stabilisatorhälfte eines aktiven Wankstabilisators (1), weiterverarbeitet wird. A torsion bar spring (3) for a chassis of a motor vehicle is produced by first a molten metal is filtered by means of a ceramic filter and subsequently from the filtered molten metal, a metal profile (7) is made, which is a torsion bar spring (3), in particular a Stabilizer half of an active roll stabilizer (1), further processed.
Description
Die Erfindung betrifft ein Verfahren zur Herstellung einer für ein Fahrwerk eines Kraftfahrzeugs geeigneten Torsionsstabfeder. Ebenso betrifft die Erfindung einen Stabilisator mit einer solchen Torsionsstabfeder.The invention relates to a method for producing a suitable for a chassis of a motor vehicle torsion bar. Likewise, the invention relates to a stabilizer with such a torsion bar spring.
Die
Eine mögliche Zusammensetzung eines Federstahls ist zum Beispiel in der
Die
In Kraftfahrzeugen werden Federn in Form von Torsionsstabfedern häufig im Fahrwerk eingesetzt. Beispielhaft wird in diesem Zusammenhang auf die
Verschiedene Beispiele aktiver Stabilisatoren, das heißt Wankstabilisatoren, für Kraftfahrzeuge sind zum Beispiel in den Dokumenten
Allgemein weisen aktive Wankstabilisatoren mindestens einen Aktor auf, welcher mit mindestens einem Federelement zusammenwirkt. Der Aktor kann hydraulisch oder elektrisch betätigt sein, wobei er ein Getriebe umfassen kann.In general, active roll stabilizers have at least one actuator which cooperates with at least one spring element. The actuator may be hydraulically or electrically actuated, wherein it may include a transmission.
Ein aus der
Unabhängig von der Art der Betätigung eines Wankstabilisators sind dessen federnde Komponenten mechanisch stark beansprucht. Grundsätzlich gilt dies auch für einen passiven Stabilisator eines Kraftfahrzeugs.Regardless of the type of operation of a roll stabilizer its resilient components are mechanically stressed. Basically, this also applies to a passive stabilizer of a motor vehicle.
Der Erfindung liegt die Aufgabe zugrunde, eine gegenüber dem Stand der Technik weiterentwickelte. für ein Fahrwerk eines Kraftfahrzeugs geeignete Torsionsstabfeder bereit zu stellen, welche sich auch unter Bedingungen der Serienfertigung durch mit hoher Qualität reproduzierbare Eigenschaften auszeichnet.The invention is based on the object, a developed over the prior art. to provide for a chassis of a motor vehicle suitable torsion bar spring, which is characterized by high quality reproducible properties even under conditions of mass production.
Diese Aufgabe wird erfindungsgemäß gelöst durch ein Verfahren zur Herstellung einer Torsionsstabfeder gemäß Anspruchs 1 sowie durch einen eine solche Torsionsstabfeder umfassenden Stabilisator gemäß Anspruch 8. Im Folgenden im Zusammenhang mit dem Herstellungsverfahren erläuterte Ausgestaltungen und Vorteile der Erfindung gelten sinngemäß auch für den für ein Fahrwerk eines Kraftfahrzeugs ausgebildeten Stabilisator und umgekehrt.This object is achieved by a method for producing a torsion bar according to
Das Herstellungsverfahren weist folgende Merkmale auf:
- - Eine Metallschmelze wird bereitgestellt,
- - die Metallschmelze wird mittels eines keramischen Filters filtriert,
- - aus der filtrierten Metallschmelze wird ein Metallprofil gefertigt, welches zu einer Torsionsstabfeder weiterverarbeitet wird.
- A molten metal is provided
- the molten metal is filtered by means of a ceramic filter,
- - From the filtered molten metal, a metal profile is made, which is further processed to a torsion bar spring.
Bei dem Werkstoff, aus welchem die Torsionsstabfeder gefertigt ist, handelt es sich um Stahl. Hinsichtlich der Filtration von Metallschmelzen durch keramische Filter wird auf die Dokumente
Eine mit keramischen Filtern gereinigte Metallschmelze zeichnet sich im Vergleich zu einer nichtfiltrierten Schmelze durch einen drastisch reduzierten Gehalt an nichtmetallischen Einschlüssen aus. Es hat sich gezeigt, dass dieser Gehalt an nichtmetallischen Einschlüssen für die Eigenschaften der fertiggestellten Torsionsstabfeder von wesentlicher Bedeutung ist. Die Effizienz der Filtration, welche durch einen keramischen Filter erreichbar ist, liegt bei etwa 70 bis 90 %.A metal melt cleaned with ceramic filters is characterized by a drastically reduced content of non-metallic inclusions compared to a non-filtered melt. It has been found that this content of non-metallic inclusions is essential for the properties of the finished torsion bar spring. The efficiency of the filtration, which can be achieved by a ceramic filter, is about 70 to 90%.
Zur Filtration der Metallschmelze ist insbesondere ein kohlenstoffhaltiger und/oder kohlenstoffgebundener Filter geeignet, welcher eine feuerfeste Oxidkörnung enthält. Das Oxid kann beispielsweise Aluminiumoxid aufweisen. Zusätzlich oder alternativ kann die Oxidkörnung zum Beispiel Zirkondioxid, Magnesiumaluminat-Spinell, Zirkonmullit, Siliziumdioxid, Magnesiumoxid, Calciumoxid, Titandioxid und/oder Mullit aufweisen.For filtering the molten metal, a carbonaceous and / or carbon-bonded filter is particularly suitable, which contains a refractory oxide grain. The oxide may, for example, comprise aluminum oxide. Additionally or alternatively, the oxide grain may comprise, for example, zirconia, magnesium aluminate spinel, zirconium mullite, silica, magnesia, calcia, titania and / or mullite.
Zusätzlich zu einer Oxidkörnung oder alternativ zu einer Oxidkörnung kann der keramische Filter eine Nicht-Oxidkörnung aufweisen, welche zum Beispiel Siliziumkarbit, Siliziumnitrit und/oder Bornitrit enthält. In addition to an oxide grain or alternatively to an oxide grain, the ceramic filter may have a non-oxide grain containing, for example, silicon carbide, silicon nitrite, and / or boron nitride.
Gemäß einer vorteilhaften Weiterentwicklung wird zur Filtrierung der Metallschmelze ein Filter mit einer aktiven Oberflächenbeschichtung verwendet. Die aktive Oberflächenbeschichtung enthält beispielsweise Karbide, Boride, Nitride und/oder Chloride. According to an advantageous further development, a filter with an active surface coating is used for filtering the molten metal. The active surface coating contains, for example, carbides, borides, nitrides and / or chlorides.
Bei dem Metallprofil, welches aus der Metallschmelze gefertigt wird, kann es sich entweder um ein Hohlprofil oder um ein Vollprofil handeln. In beiden Fällen kann aus dem Profil entweder ein passiver oder ein aktiver Wankstabilisator gefertigt werden. Im Fall eines passiven Wankstabilisators kann dieser mit der Torsionsstabfeder identisch sein. Ebenso ist es möglich, einen mehrteiligen passiven Stabilisator zu fertigen, dessen Torsionsstabfeder mit weiteren Bauteilen verbunden ist. Im Fall eines aktiven Wankstabilisators ist in jedem Fall eine Wirkverbindung der Torsionsstabfeder mit mindestens einem Aktor, das heißt einem elektromechanischen oder hydraulischen Aktor, vorgesehen.In the metal profile, which is made from the molten metal, it may be either a hollow profile or a solid profile. In both cases, either a passive or an active roll stabilizer can be made from the profile. In the case of a passive roll stabilizer, this may be identical to the torsion bar spring. It is also possible to manufacture a multipart passive stabilizer whose torsion bar spring is connected to other components. In the case of an active roll stabilizer, an operative connection of the torsion bar spring with at least one actuator, that is to say an electromechanical or hydraulic actuator, is provided in each case.
Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand einer Zeichnung näher erläutert. Hierin zeigen:
-
1 ausschnittsweise einen aktiven Wankstabilisator in einer schematisierten Darstellung, -
2 ein zur Herstellung des Wankstabilisators zu verwendendes Halbzeug, -
3 ein Flussdiagramm zur Erläuterung der Herstellung eines Stabilisatorteils des Wankstabilisators.
-
1 a section of an active roll stabilizer in a schematic representation, -
2 a semifinished product to be used for producing the roll stabilizer, -
3 a flowchart for explaining the preparation of a stabilizer part of the roll stabilizer.
Ein insgesamt mit dem Bezugszeichen
Das Stabilisatorteil
Bei der Herstellung des Stabilisatorteils
Das Halbzeug
Die nichtmetallischen Einschlüsse
Beim Prozess nach
Bezugszeichenliste LIST OF REFERENCE NUMBERS
- 11
- Wankstabilisatorroll stabilizer
- 22
- Aktoractuator
- 33
- Stabilisatorteil, TorsionsstabfederStabilizer part, torsion bar spring
- 44
- Querabschnittcross section
- 55
- Längsabschnittlongitudinal section
- 66
- Anschlusselementconnecting element
- 77
- Halbzeug, MetallprofilSemi-finished product, metal profile
- 88th
- nichtmetallischer Einschluss non-metallic inclusion
- S1 ... S4S1 ... S4
- Verfahrensschrittesteps
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 102014214592 A1 [0002]DE 102014214592 A1 [0002]
- EP 1966407 B1 [0003]EP 1966407 B1 [0003]
- EP 2192201 A1 [0004]EP 2192201 A1 [0004]
- DE 202015102243 U1 [0005]DE 202015102243 U1 [0005]
- DE 201015102243 U1 [0005]DE 201015102243 U1 [0005]
- DE 10347265 B4 [0006]DE 10347265 B4 [0006]
- EP 1275535 B1 [0006]EP 1275535 B1 [0006]
- DE 102015205045 A1 [0006]DE 102015205045 A1 [0006]
- DE 102007028852 A1 [0006]DE 102007028852 A1 [0006]
- EP 1161357 B1 [0008]EP 1161357 B1 [0008]
- DE 102011109682 A1 [0013, 0025]DE 102011109682 A1 [0013, 0025]
- DE 102011109681 A1 [0013, 0025]DE 102011109681 A1 [0013, 0025]
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017107487.2A DE102017107487A1 (en) | 2017-04-07 | 2017-04-07 | Method for producing a torsion bar spring and stabilizer for a chassis of a motor vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017107487.2A DE102017107487A1 (en) | 2017-04-07 | 2017-04-07 | Method for producing a torsion bar spring and stabilizer for a chassis of a motor vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102017107487A1 true DE102017107487A1 (en) | 2018-10-11 |
Family
ID=63587595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017107487.2A Withdrawn DE102017107487A1 (en) | 2017-04-07 | 2017-04-07 | Method for producing a torsion bar spring and stabilizer for a chassis of a motor vehicle |
Country Status (1)
Country | Link |
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DE (1) | DE102017107487A1 (en) |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1161357B1 (en) | 2000-01-13 | 2002-07-31 | Bayerische Motoren Werke Aktiengesellschaft | Electromechanical stabilizer for a vehicle chassis |
EP1275535B1 (en) | 2001-07-10 | 2008-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Transmission, in particular for a stabilizer assembly for a motor vehicle chassis |
DE102007028852A1 (en) | 2007-06-22 | 2008-12-24 | Bayerische Motoren Werke Aktiengesellschaft | Chassis for motor vehicle, has two stabilizer units connected with one another or one of stabilizer units is connected with actuator housing over fasteners by element with spring characteristics |
EP1966407B1 (en) | 2005-12-15 | 2009-10-07 | Ascometal | Spring steel, method for producing a spring using said steel and a spring made from such steel |
EP2192201A1 (en) | 2008-11-21 | 2010-06-02 | Muhr und Bender KG | Hardened spring steel, spring element and method for manufacturing a spring element |
DE102011109681A1 (en) | 2011-08-08 | 2013-02-14 | Technische Universität Bergakademie Freiberg | Ceramic filter, useful for molten metal filtration based on molten metal filter geometry, where filter is a support material with active surface coating that has same chemical phase components as non-metallic inclusions in molten metal |
DE102011109682A1 (en) | 2011-08-08 | 2013-02-14 | Technische Universität Bergakademie Freiberg | Preparation of carbonaceous and/or carbon-bonded ceramic filter used for filtration of metal melt, involves processing feedstock and molding ceramic slurry by adding phenol resin-free binding agent, carbon black and additive |
DE10347265B4 (en) | 2002-11-05 | 2014-01-30 | Schaeffler Technologies AG & Co. KG | Roll stabilizer for the chassis of a motor vehicle |
DE202015102243U1 (en) | 2015-04-21 | 2015-05-19 | Ford Global Technologies, Llc | Stabilizer for a motor vehicle |
DE102014214592A1 (en) | 2014-07-24 | 2016-02-18 | Volkswagen Aktiengesellschaft | Spring spring made of spring steel and method for producing a helical spring |
DE102015205045A1 (en) | 2015-03-20 | 2016-09-22 | Zf Friedrichshafen Ag | Active stabilizer for a driver's cab of a motor vehicle |
-
2017
- 2017-04-07 DE DE102017107487.2A patent/DE102017107487A1/en not_active Withdrawn
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1161357B1 (en) | 2000-01-13 | 2002-07-31 | Bayerische Motoren Werke Aktiengesellschaft | Electromechanical stabilizer for a vehicle chassis |
EP1275535B1 (en) | 2001-07-10 | 2008-04-09 | Bayerische Motoren Werke Aktiengesellschaft | Transmission, in particular for a stabilizer assembly for a motor vehicle chassis |
DE10347265B4 (en) | 2002-11-05 | 2014-01-30 | Schaeffler Technologies AG & Co. KG | Roll stabilizer for the chassis of a motor vehicle |
EP1966407B1 (en) | 2005-12-15 | 2009-10-07 | Ascometal | Spring steel, method for producing a spring using said steel and a spring made from such steel |
DE102007028852A1 (en) | 2007-06-22 | 2008-12-24 | Bayerische Motoren Werke Aktiengesellschaft | Chassis for motor vehicle, has two stabilizer units connected with one another or one of stabilizer units is connected with actuator housing over fasteners by element with spring characteristics |
EP2192201A1 (en) | 2008-11-21 | 2010-06-02 | Muhr und Bender KG | Hardened spring steel, spring element and method for manufacturing a spring element |
DE102011109681A1 (en) | 2011-08-08 | 2013-02-14 | Technische Universität Bergakademie Freiberg | Ceramic filter, useful for molten metal filtration based on molten metal filter geometry, where filter is a support material with active surface coating that has same chemical phase components as non-metallic inclusions in molten metal |
DE102011109682A1 (en) | 2011-08-08 | 2013-02-14 | Technische Universität Bergakademie Freiberg | Preparation of carbonaceous and/or carbon-bonded ceramic filter used for filtration of metal melt, involves processing feedstock and molding ceramic slurry by adding phenol resin-free binding agent, carbon black and additive |
DE102014214592A1 (en) | 2014-07-24 | 2016-02-18 | Volkswagen Aktiengesellschaft | Spring spring made of spring steel and method for producing a helical spring |
DE102015205045A1 (en) | 2015-03-20 | 2016-09-22 | Zf Friedrichshafen Ag | Active stabilizer for a driver's cab of a motor vehicle |
DE202015102243U1 (en) | 2015-04-21 | 2015-05-19 | Ford Global Technologies, Llc | Stabilizer for a motor vehicle |
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