DE102013219250A1 - Component part, useful in chassis of motor vehicle e.g. passenger car, comprises lightweight material and high-strength material applied on higher loaded location by laser melting and applied in the form of ribs or mesh - Google Patents
Component part, useful in chassis of motor vehicle e.g. passenger car, comprises lightweight material and high-strength material applied on higher loaded location by laser melting and applied in the form of ribs or mesh Download PDFInfo
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- DE102013219250A1 DE102013219250A1 DE201310219250 DE102013219250A DE102013219250A1 DE 102013219250 A1 DE102013219250 A1 DE 102013219250A1 DE 201310219250 DE201310219250 DE 201310219250 DE 102013219250 A DE102013219250 A DE 102013219250A DE 102013219250 A1 DE102013219250 A1 DE 102013219250A1
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- 239000000463 material Substances 0.000 title claims abstract description 28
- 238000002844 melting Methods 0.000 title claims abstract description 26
- 230000008018 melting Effects 0.000 title claims abstract description 26
- 239000003562 lightweight material Substances 0.000 title claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000001465 metallisation Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000011343 solid material Substances 0.000 claims 1
- 238000010309 melting process Methods 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 238000005242 forging Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- UQZIWOQVLUASCR-UHFFFAOYSA-N alumane;titanium Chemical compound [AlH3].[Ti] UQZIWOQVLUASCR-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- 239000007769 metal material Substances 0.000 description 1
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- 239000012255 powdered metal Substances 0.000 description 1
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- 238000000926 separation method Methods 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
- B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
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- 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
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- 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
- B60G2206/50—Constructional features of wheel supports or knuckles, e.g. steering knuckles, spindle attachments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/70—Materials used in suspensions
- B60G2206/71—Light weight materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
- B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
- B60G2206/80—Manufacturing procedures
- B60G2206/82—Joining
- B60G2206/8201—Joining by welding
-
- 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
- Y02P10/25—Process efficiency
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
Description
Die Erfindung betrifft ein Bauelement im Fahrwerk eines Kraftfahrzeugs, insbesondere eines Personenkraftwagens, welches in einem Leichtbau-Werkstoff ausgeführt und an zumindest einer höher belasteten Stelle verstärkt ist. Als ein solches Bauelement kommt insbesondere ein Rad oder ein Radträger oder ein Schwenklager oder ein radführender Lenker oder ein Gussknoten in einem Achsträger oder dgl. in Frage.The invention relates to a component in the chassis of a motor vehicle, in particular a passenger car, which is executed in a lightweight material and reinforced at least one higher loaded point. As such a component is in particular a wheel or a wheel carrier or a pivot bearing or a wheel-guiding arm or a cast node in an axle or the like. In question.
Leichtbau war und ist insbesondere auch im Fahrwerksbereich von Kraftfahrzeugen ein hochbrisantes Thema. Andererseits muss an Fahrwerks-Bauteilen eine bestimmte Steifigkeit oder Festigkeit dargestellt werden. Daher werden Bauteile der Fahrzeug-Radaufhängung bzw. des Fahrwerks nicht nur in Leichtmetall, sondern wo erforderlich weiterhin in Stahl hergestellt, und zwar jeweils vorzugsweise durch Gießen oder mit Schmiedetechnologie. Dabei unterliegt die detaillierte Gestaltung aber Zwängen der Fertigungstechnologien, wie Entformbarkeit, Speisung, Formtrennung etc.. Auch eine theoretisch mögliche Hybrid-Bauweise von Fahrwerksbauteilen mit einem Material-Mix (bspw. Stahl-Aluminiumm, Aluminium-Titan) scheitert bislang zumeist an einer sinnvoll durchführbaren Verbindungstechnologie für die verschiedenen Werkstoffe.Lightweight construction was and is a highly explosive topic, especially in the chassis area of motor vehicles. On the other hand, suspension components have to be given a certain rigidity or strength. Therefore, components of the vehicle suspension or the chassis are made not only in light metal, but where necessary in steel, preferably each by casting or with forging technology. However, the detailed design is subject to constraints of manufacturing technologies, such as mold release, feeding, mold separation, etc. Even a theoretically possible hybrid construction of chassis components with a material mix (eg., Aluminum-Aluminiumm, aluminum-titanium) fails so far mostly meaningful feasible connection technology for the different materials.
Zur Lösung des eben genannten Zielkonflikts zwischen Leichtbau und ausreichender Festigkeit wird vorliegend vorgeschlagen, ein insbesondere aus der Luftfahrtindustrie bekanntes Laserschmelzverfahren zur gezielten Verstärkung eines Leichtbauteiles auf Bauelemente im Fahrwerksbereich von Kraftfahrzeugen, insbesondere Personenkraftwagen, und dabei insbesondere auf eines der oben genannten Bauelemente anzuwenden. Ein solches Bauelement im Fahrwerk eines Kraftfahrzeugs, insbesondere Personenkraftwagens, ist somit in einem Leichtbau-Werkstoff ausgeführt und an zumindest einer hoch oder höher belasteten Stelle durch einen insbesondere mit einem Selective-Laser-Melting-Verfahren („SLM-Verfahren”) oder einem LMD-Verfahren (= „Laser Metal Deposition”) aufgebauten gleichartigen oder vorzugsweise höherfesten Werkstoff verstärkt. Zum bekannten „Selective-Laser-Melting-Verfahren”, allgemein und auch hier als SLM-Verfahren abgekürzt, wird beispielshalber auf die
Durch die Selective-Laser-Melting-Technologie oder Laser-Metal-Deposition-Technologie wird erfindungsgemäß eine bedarfsgerechte Skalierung von Fahrwerks-Bauteilen Bauteilen durch Anbringung oder Aufbringung von Verstärkungen ermöglicht. So kann zusätzliches Material zumindest derselben Güte, aber vorzugsweise auch Titan oder Stahl auf zunächst wie üblich gefertigte, d. h. vorzugsweise gegossene oder geschmiedete Bauteile aus einem Leichtmetall-Werkstoff, insbesondere einer Aluminium-Legierung, aufgetragen werden. Es kann aber auch ein vollständiges Bauteil bzw. Bauelement im SLM-Verfahren hergestellt werden, und zwar in Kombination mit der Methode einer Topologie-Optimierung, wobei sog. Gitter/Netz-Bauteile entstehen. Schließlich kann mit dem SLM-Verfahren ein vorteilhaftes Verschweißen von Aluminium (Leichtmetall) und Stahlbauteilen durchgeführt werden.By the selective laser melting technology or laser metal deposition technology according to the invention a needs-based scaling of chassis components components made possible by attachment or application of reinforcements. Thus, additional material of at least the same quality, but preferably also titanium or steel, can be manufactured as initially customary, ie. H. preferably cast or forged components made of a light metal material, in particular an aluminum alloy, are applied. However, it is also possible to produce a complete component or component in the SLM method, in combination with the method of topology optimization, whereby so-called grid / network components are produced. Finally, with the SLM method, an advantageous welding of aluminum (light metal) and steel components can be carried out.
Nach einer bevorzugten Ausführungsform ist der durch Laserschmelzen (vorzugsweise SLM oder LMD) aufgebrachte Werkstoff in Form von Rippen oder eines Netzes aufgebaut oder aufgetragen. Dabei kann der durch Laserschmelzen aufgetragene Werkstoff nicht nur quasi nachträglich auf ein zunächst in einem Leichtbau-Werkstoff gefertigtes Bauteil oder Bauelement aufgebracht werden, sondern es kann das Bauelement in einem ersten Herstellschritt netzartig nach dem SLM-Verfahren aufgebaut werden und in einem zweiten Herstellschritt zu einer geschlossen oder zumindest flächenhaften Struktur geformt sein. Letzteres kann beispielsweisen durch Tauchen des durch das SLM-Verfahren quasi in Form eines Skeletts oder Gerüsts dargestellten Bauteils in eine Kunststoffmasse erfolgen, so dass also zunächst quasi die Verstärkung (durch Laserschmelzen) erzeugt wird und daraufhin die geschlossene Bauteilstruktur durch Ausfüllen der Räume zwischen den einzelnen die Verstärkung bildenden beispielsweise Stegen dargestellt wird. Während der soeben genannte Kunststoff ein besonderes Beispiel für einen Leichtbau-Werkstoff ist, bei welchem es sich alternativ üblicherweise um ein Leichtmetall handeln wird, kommt als höherfester Werkstoff, der mittels Laserschmelzens aufgebaut oder aufgebracht wird, neben höherfesten Stählen insbesondere Titan in Frage.According to a preferred embodiment, the material applied by laser melting (preferably SLM or LMD) is constructed or applied in the form of ribs or a net. In this case, the material applied by laser melting material can be applied not only quasi later on a first manufactured in a lightweight material component or component, but it can be constructed in a first manufacturing step net-like the SLM process, the component and in a second manufacturing step to a be formed closed or at least planar structure. The latter can be done, for example, by dipping the component represented by the SLM method in the form of a skeleton or framework into a plastic mass, so that the reinforcement is initially produced (by laser melting) and then the closed component structure is filled by filling the spaces between the individual components the reinforcement forming example webs is shown. While the plastic just mentioned is a particular example of a lightweight material, which will usually be a light metal, as a higher-strength material that is built up or applied by means of laser melting, in particular titanium is considered in addition to higher-strength steels.
Beispielsweise kann ein Radträger komplett wie weiter oben bereits kurz dargestellt und somit von der üblichen Technologie abweichend hergestellt werden. Demnach kann zunächst quasi ein Skelett dieses Radträgers durch das SLM-Verfahren aufgebaut werden, wobei die Oberfläche dieses Skeletts jedenfalls abschnittsweise nach Art eines Netzes gebildet ist und wobei das Laserschmelzen des höherfesten Werkstoffs unter gleichzeitigem Aufbau des Bauelements, welches selbstverständlich nicht auf einen Radträger beschränkt ist, analog der bekannten Stereolithographie-Technik durchgeführt wird. Anschließend werden die Maschen dieses Netzes, d. h. die Öffnungen zwischen dem so aufgebauten Material mit einem Leichtbau-Werkstoff, beispielsweise einem geeigneten Kunststoff gefüllt. Ein Beispiel für einen solchen Radträger ist in der beigefügten
Beispielsweise können auf einen in einer Aluminiumlegierung zunächst wie üblich (bspw. durch Schmieden) hergestellten radführenden Lenker beispielsweise in Form eines Netzes Rippen aus einer Titanlegierung durch Laserschmelzen von Metallpulver (bspw. nach dem LMD-Verfahren) aufgebracht werden. Hiermit ist eine signifikante Erhöhung der Verwindungssteifigkeit eines solchen Lenkers erzielbar. Unter dem Begriff eines Netzes ist eine Struktur von mehreren sich unter beliebigen Winkeln kreuzenden Linien zu verstehen, die als Stränge von besagtem höherfestem Material oder Werkstoff beispielsweise auf die Oberfläche eines ansonsten herkömmlich geformten Fahrwerks-Bauelements aufgebracht sein können. Dabei kann ausdrücklich auch nur ein Teil der Gesamt-Oberfläche eines solchen Bauelements mit einem solchen Netz oder nur mit einer oder mehreren geeignet ausgerichteten und beispielsweise parallel zueinander verlaufenden Rippe(n) versehen sein; selbstverständlich insbesondere die mechanisch hochbelasteten Oberflächenabschnitte des Bauelements. In den beigefügten
Als weiteres Beispiel kann ein üblicherweise in Achsträgern vorgesehener, aus Leichtmetall bestehender sog. Guss-Knoten an solchen Stellen, an denen im Rahmen des Gießens dieses im Zusammenbau verschiedene vorgefertigte Profile miteinander verbindenden und somit eine gewünschte Struktur, beispielsweise einen Hinterachsträger ermöglichenden Knotens (beispielsweise wegen Hinterschnitten) keine Versteifungs-Rippen oder dgl. aufgebracht werden können, durch Laserschmelzen (LMD-Verfahren oder SLM-Verfahren) mit solchen Versteifungs-Rippen oder dgl. versehen werden. Hier kann es sogar ausreichend sein, wenn diese Versteifungs-Rippen aus dem gleichen Werkstoff wie der Gussknoten erzeugt werden.As a further example, a so-called cast iron knot, usually provided in axle beams and consisting of light metal, may be connected at such locations where different prefabricated profiles are joined together in the course of casting and thus a desired structure, for example a rear axle carrier (for example Undercuts) no stiffening ribs or the like. Can be applied by laser melting (LMD method or SLM method) with such stiffening ribs or the like. Be provided. Here it may even be sufficient if these stiffening ribs are produced from the same material as the casting knot.
Im übrigen ist es nicht zwingend erforderlich, dass der durch Laserschmelzen aufgebrachte Werkstoff in Form von Rippen oder eines Netzes aufgebaut oder aufgetragen ist. Auch andere Formen sind durch Auftragen von Material durch Laserschmelzen darstellbar. Beispielsweise kann der durch das SLM-Verfahren oder LDM-Verfahren aufgebrachte Werkstoff flächig und vorzugsweise mit über der Fläche unterschiedlicher, an die jeweilige Belastung angepasster Dicke auf ein in üblicher Weise in einem Leichtbau-Werkstoff gefertigtes Bauelement aus dem Fahrwerk eines Kraftfahrzeugs aufgebracht sein.Moreover, it is not absolutely necessary that the material applied by laser melting is constructed or applied in the form of ribs or a net. Other forms can be represented by applying material by laser melting. For example, the material applied by the SLM method or LDM method may be applied over the surface of a chassis of a motor vehicle, preferably over a surface of different thickness adapted to the particular load, in a conventional manner in a lightweight material.
Als weiteres Beispiel für ein erfindungsgemäß verstärktes Bauelement im Fahrwerksbereich eines Kraftfahrzeugs sei ein Schwenklager (auch als Achsschenkel bezeichnet) genannt, welches in Hybridbauweise geformt ist. Ein erster Bestandteil eines Hybrid-Schwenklaqers kann ein in Leichtmetall gefertigter Radträger sein, an dem im Stand der Technik ein Stahlrohr zur drehbaren Führung dieses Schwenklagers angebracht ist. Diese Verbindung zwischen den beiden Einzelteilen eines solchen oder vergleichbaren Bauelements im Fahrwerk eines Kraftfahrzeugs kann durch Laserschmelzen (SLM-Verfahren oder LDM-Verfahren) stoffschlüssig hergestellt werden.As a further example of a device according to the invention reinforced in the chassis area of a motor vehicle, a pivot bearing (also referred to as a steering knuckle) is called, which is formed in hybrid construction. A first component of a hybrid Schwenklaqers may be a manufactured in light metal wheel, to which in the prior art, a steel tube for rotatably guiding this pivot bearing is mounted. This connection between the two individual parts of such or comparable component in the chassis of a motor vehicle can be produced by laser fusion (SLM method or LDM method) cohesively.
Unter erfindungsgemäßer Anwendung des Laserschmelzens, insbesondere SLM-Verfahrens oder LDM-Verfahrens wird eine Skalierung von Bauteilen für Fahrzeuge am Rande der Architekturgrenzen durch Aufbringung von Verstärkungen vorzugsweise in höherer Festigkeit ermöglicht, ohne dass hierdurch nennenswert mehr Bauraum beansprucht wird. So kann der bspw. in Aluminium ausgeführte Bauteil-Querschnitt reduziert und gezielt durch Titan oder Stahl ersetzt werden, was bei gleichem Bauraum-Bedarf zu signifikant höherer Steifigkeit und Festigkeit führt. Eine Darstellung von Geometrien, die in den üblichen Technologien wie Guß- oder Schmiedeverfahren nicht dargestellt werden können, wird durch späteres Aufbringen von Rippen, Flächen oder Gitterstrukturen durch Laserschmelzen (SLM-Verfahren, LDM-Verfahren) ermöglicht. Durch den nur örtlichen, effizienten Materialeinsatz ggf. teurer Verstärkungswerkstoffe wie Titan lässt sich ein erfindungsgemäß hergestelltes Bauelement noch relativ kostengünstig darstellen. Ein Gewichtsvorteil, der sich dadurch einstellt, dass nicht das komplette Bauteil in hochfestem (und schwerem) Stahl gefertigt werden muss, liegt auf der Hand.Under the inventive application of the laser melting, in particular SLM method or LDM method, a scaling of components for vehicles at the edge of the architectural boundaries by applying reinforcements is preferably made possible in higher strength, without this appreciably more space is claimed. Thus, for example, executed in aluminum component cross-section can be reduced and replaced by titanium or steel, which leads to significantly higher rigidity and strength for the same space requirements. A representation of geometries, which can not be represented in the usual technologies such as casting or forging, is made possible by subsequent application of ribs, surfaces or lattice structures by laser melting (SLM method, LDM method). Due to the only local, efficient use of materials possibly more expensive reinforcing materials such as titanium can be a inventively manufactured device still represent relatively inexpensive. A weight advantage, which results from the fact that not the complete component in high-strength (and heavy) steel must be made, is obvious.
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 102009058359 A1 [0003] DE 102009058359 A1 [0003]
- WO 2006/133034 [0003] WO 2006/133034 [0003]
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DE201310219250 DE102013219250A1 (en) | 2012-09-26 | 2013-09-25 | Component part, useful in chassis of motor vehicle e.g. passenger car, comprises lightweight material and high-strength material applied on higher loaded location by laser melting and applied in the form of ribs or mesh |
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DE102012217425 | 2012-09-26 | ||
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DE201310219250 DE102013219250A1 (en) | 2012-09-26 | 2013-09-25 | Component part, useful in chassis of motor vehicle e.g. passenger car, comprises lightweight material and high-strength material applied on higher loaded location by laser melting and applied in the form of ribs or mesh |
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DE201310219250 Pending DE102013219250A1 (en) | 2012-09-26 | 2013-09-25 | Component part, useful in chassis of motor vehicle e.g. passenger car, comprises lightweight material and high-strength material applied on higher loaded location by laser melting and applied in the form of ribs or mesh |
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Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014211174A1 (en) * | 2014-06-11 | 2015-12-17 | Bayerische Motoren Werke Aktiengesellschaft | Wheel, in particular for a motor vehicle, and a method for producing such a wheel |
WO2016001360A1 (en) * | 2014-07-03 | 2016-01-07 | Autotech Engineering A.I.E. | Reinforced structural components |
WO2016030592A1 (en) * | 2014-08-27 | 2016-03-03 | Peugeot Citroen Automobiles Sa | Hub carrier for a vehicle wheel |
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US11324323B2 (en) | 2019-09-18 | 2022-05-10 | Steelcase Inc. | Body support member with lattice structure |
US11974676B2 (en) | 2019-09-18 | 2024-05-07 | Steelcase Inc. | Body support member with lattice structure |
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