EP1196259B1 - Bauteil aus metallschaum enthaltenden verbundwerkstoff und verfahren zu seiner herstellung - Google Patents
Bauteil aus metallschaum enthaltenden verbundwerkstoff und verfahren zu seiner herstellung Download PDFInfo
- Publication number
- EP1196259B1 EP1196259B1 EP00938562A EP00938562A EP1196259B1 EP 1196259 B1 EP1196259 B1 EP 1196259B1 EP 00938562 A EP00938562 A EP 00938562A EP 00938562 A EP00938562 A EP 00938562A EP 1196259 B1 EP1196259 B1 EP 1196259B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metallic material
- layer
- layers
- foamable
- expandable
- 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.)
- Expired - Lifetime
Links
Images
Classifications
-
- 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
- B22F7/002—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 porous nature
- B22F7/004—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 porous nature comprising at least one non-porous part
- B22F7/006—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 porous nature comprising at least one non-porous part the porous part being obtained by foaming
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F2003/1042—Sintering only with support for articles to be sintered
- B22F2003/1046—Sintering only with support for articles to be sintered with separating means for articles to be sintered
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/922—Static electricity metal bleed-off metallic stock
- Y10S428/9335—Product by special process
- Y10S428/94—Pressure bonding, e.g. explosive
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49616—Structural member making
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49616—Structural member making
- Y10T29/49622—Vehicular structural member making
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49789—Obtaining plural product pieces from unitary workpiece
Definitions
- the invention relates to a component made of composite material and a method for its Production according to the preambles of claims 1 and 2.
- Light components such as B. hollow body, with two made of a solid metallic material existing cover layers and an intermediate layer of one Metal foam is known. These components have particularly high rigidity and strength at a low weight. From DE 41 01 630 it is known that hollow bodies with Foamable aluminum can be filled and that the foaming process inside of the hollow body takes place, which creates a particularly light component. Through the Presence of oxide layers on all surfaces of the hollow body and on the The surface of the expanding foam can be the connection between the Foam filling and the hollow body are affected.
- Sandwich-like composite materials can also be glued on Aluminum foam bodies with cover layers made of solid metallic material getting produced.
- cover layers made of solid metallic material getting produced.
- Composite materials are known from DE 44 26 627, by the roll cladding of foamable aluminum with cover layers made of solid metallic material such as B. steel, aluminum or titanium, and a subsequent one Foaming of the foamable aluminum.
- cover layers made of solid metallic material such as B. steel, aluminum or titanium
- Foaming of the foamable aluminum In this process
- Manufactured hollow bodies have a solid outer layer on the inside and outside metallic material.
- the inner cover layer contributes little to the rigidity and Strength of the component, but increases the weight of the entire component.
- the object of the present invention is to specify a component that has a high rigidity and has strength but is light in weight. Another job he The invention is to provide a method for producing such a component.
- a component which has a layer of solid has metallic material and in which at least one surface by a foamable metallic material is formed.
- This surface can be the outer or be the inner surface.
- the component can be a flat composite sheet or a Be hollow body. Due to the manufacturing process of this component ensures that the connection between the solid metallic top layer and the foamable layer is very good and that the foamable layer on the Top layer adheres firmly.
- the component When designing the component as a flat composite sheet, it can be provided that this made of a solid metallic layer and a layer of one firmly adhering to it foamable metallic material.
- These composite sheets are suitable especially as side impact protection beams for car doors.
- Such one Side impact protection beam therefore consists of a hollow profile on the There is a firmly adhering metal foam on the inside wall, which clearly increases the rigidity and strength of the component, but only contributes little to the weight.
- Another embodiment of the composite sheets provides that the component consists of several Layers of a solid material and the layers arranged between them foamable metallic material, both or only one surface of a composite sheet designed in this way by a layer of a foamable metallic.
- the invention provides that a Composite sheet one arranged between two foamable layers Has layer of solid metallic meterial. This composite sheet has a particularly high rigidity and strength with a very low Weight on.
- the components according to the invention with an asymmetrical layer sequence are preferably produced by package rolling. Doing this alternately Layers made of a solid metallic material and layers made of foamable metallic material arranged on top of each other. According to the invention it is also provided instead of the finished foamable Layers of loose powder mixtures containing blowing agent or pre-compressed (e.g. by cold isostatic pressing) to use powder mixtures. In In these cases, one or more contiguous, continuous, non-porous, separating foils used, otherwise emulsions could mix with the loose or pre-compacted powder mixture. The In these cases, loose or pre-compacted powder mixtures are only to foamable during the plating or coating process Layers compacted.
- a link between the individual Foamable layers belonging to composite sheets during the Rolling process is by the arrangement of a release agent, for. Legs Emulsion of graphite or boron nitride or a release film, between the Prevents layers. Is the foamable layer in the form of a powder mixture containing blowing agent, a film is used as the release agent used.
- the packages assembled in this way are subjected to the rolling process fed. After the rolling process is completed, the separating agents arranged between the foamable layers Components that have foamable layers on their surfaces, receive.
- plating or coating methods can also be used be used, provided they establish a good connection between the foamable metal layer and the top layer made of solid metallic Lead material. It can be pulling, thermal spraying, Explosive plating, coextrusion, extrusion plating or HIP plating act.
- connection quality of the method according to the invention composite materials is so good that e.g. the levels Composite metal sheets cold-profiled or by known methods longitudinally welded hollow profiles can be processed.
- irregularly shaped hollow parts e.g. Tanks or wishbones, to get it is possible to advance the flat composite sheets by any Forming processes such as pressing, deep drawing or internal pressure forming deform and then form the desired hollow body from it.
- Figure 1 shows an arrangement of the materials in the production of planes Composite sheets with only one solid metallic cover layer 1a, 1b, and a foamable layer 2a, 2b.
- the starting materials for symmetrical plate stacks A are obtained arranged.
- a cover layer 1a made of solid metallic material is a layer 2a made of a metallic, foamable material brought.
- a release agent 3 is arranged on this layer.
- the Release agent layer 3 becomes a further layer 2b of foamable metallic material and a further cover layer 1b from a solid metallic material applied.
- Such plate stack A are one Subjected to roll plating.
- the cover layer connects in each case 1a, b with the adjacent foamable layer 2a, b.
- Such a The composite sheet produced can also be structured in three dimensions.
- the Connection quality between the two layers 1 and 2 is so good that this is the case in subsequent processing by conventional methods such as. Pressing, deep drawing, hydroforming etc. do not differ from each other to solve.
- FIG. 2 shows another arrangement for the production of composite sheets in the Package rolling process shown. It is the following arrangement of the layers provided: follows a cover layer 4 made of solid metallic material a layer 5 of foamable material. This layer 5 is followed by one Release agent layer 3, on which another layer 6 of foamable Material is arranged. This layer 6 is followed by a layer 7 made of solid metallic material and a layer 8 of foamable material and a release agent layer 3. This is followed by a layer foamable material and a cover layer 10 made of solid metallic material.
- This package is fed to the roll plating process. After the roll cladding process has been completed, two are formed on one side foamable material coated composite sheets 4, 5; 9, 10 and one composite sheet 6, 7, 8 provided with foamable material on both sides.
- FIG. 3 shows a layer sequence in which one Sandwich construction (arranged between two cover layers foamable layer) additionally with a foamable layer on one or both surfaces is coated.
- Layers solid metallic material 11, foamable material 12 , Release agent 3, foamable material 13, solid metallic material 14, foamable material 15, solid metallic material 16, foamable Material 17, release agent 3, foamable material 18, solid metallic Material 19. If this package is roll-clad, two are created on one side a foamable layer provided composite sheets 11, 12; and 18, 19 and a Sanchwich construction with two solid cover layers 14, 16, the are provided on their surfaces with foamable material 13, 17 and with foamable material 15 between the cover layers 14, 16 located.
- the layers 11, 12, 3a and 13 omitted, so there is a one-sided with a foamable layer 17 provided sandwich construction 14, 15, 16 and one sided with a foamable layer 18 provided composite sheet 18, 19th
- the contact surfaces of the two Half-shells 20, 21 are not foamed as a result of the contact pressure, see above that the two half-shells 20, 21 here by a solid, non-foamed Aluminum layer are inextricably linked while on the rest Inner surfaces of the foam could expand unhindered.
- Another One possibility for producing the hollow component is the two Half shells 20, 21 with each other before or after foaming weld so that the metal layers of conventional materials in the welding zone are directly connected to each other without foam or foamable material in between.
- regularly shaped hollow bodies e.g. simple pipes
- the foaming process is often carried out as the last step by the hollow body is heated to a temperature at which the foamable aluminum layer 24 foams to a foam layer 25.
- the foaming can be deliberately driven to the extent that the entire interior of a hollow component is filled with foam.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Forging (AREA)
- Powder Metallurgy (AREA)
- Metal Rolling (AREA)
Description
Claims (8)
- Verfahren zur Herstellung eines Bauteiles aus Verbundwerkstoff mit mindestens einer Schicht aus massivem metallischem Werkstoff und mindestens einer Schicht aus einem aufschäumbaren metallischen Werkstoff, wobei mindestens eine äußere und/oder innere Oberfläche des Bauteils aus dem aufschäumbaren metallischen Werkstoff besteht, dadurch gekennzeichnet, dass zwischen mindestens zwei Schichten aus massiv-metallischem Material mindestens zwei durch ein Trennmittel voneinander getrennte Schichten aus aufschäumbarem metallischen Werkstoff angeordnet sind und dass diese Schichten einem Walzvorgang unterzogen werden und dass nach dem Walzvorgang die durch Trennmittel voneinander getrennten Verbundwerkstoffbauteile getrennt werden.
- Verfahren zur Herstellung eines Bauteiles aus Verbundwerkstoff mit mindestens einer Schicht aus massivem metallischem Werkstoff und mindestens einer Schicht aus einem aufschäumbaren metallischen Werkstoff, wobei mindestens eine äußere und/oder innere Oberfläche des Bauteils aus dem aufschäumbaren metallischen Werkstoff besteht, dadurch gekennzeichnet, dass zwischen zwei Schichten aus massiv-metallischem Material eine Schicht aus aufschäumbarem metallischem Werkstoff angeordnet ist und dass zwischen mindestens einer Schicht aus massivem metallischem Material und mindestens einer weiteren Schicht aus massivem metallischem Material mindestens zwei durch ein Trennmittel voneinander getrennte Schichten aus aufschäumbarem Material angeordnet sind.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Schicht aus aufschäumbarem Material durch lose oder vorverdichtete treibmittelhaltige Pulvermischung gebildet ist und dass während des Walzvorganges diese Pulvermischung zu einer festen aufschäumbaren Schicht verdichtet wird.
- Verfahren nach einem der vorangegangenen Ansprüche 1 oder 2 dadurch gekennzeichnet, dass das Trennmittel eine Emulsion aus Graphit oder Bornitrit oder eine Trennfolie ist.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass das Trennmittel eine Folie ist.
- Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Verfahren als Walzplattieren, Ziehverfahren, Sprengplattieren, HlP-Plattieren, Strangpressplattieren, Koextrusion oder Ziehen durchgeführt wird.
- Verfahren nach einem der vorangegangenen Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Weiterverarbeitung der. hergestellten Bauteile durch Pressen, Innenhochdruckumformen oder Tiefziehen erfolgt.
- Verfahren nach einem der vorangegangenen Ansprüche dadurch gekennzeichnet, dass die Weiterverarbeitung der hergestellten Bauteile durch Tiefziehen erfolgt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19923127 | 1999-05-19 | ||
DE19923127 | 1999-05-19 | ||
PCT/DE2000/001559 WO2000071285A1 (de) | 1999-05-19 | 2000-05-18 | Bauteil aus metallschaum enthaltenden verbundwerkstoff und verfahren zu seiner herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1196259A1 EP1196259A1 (de) | 2002-04-17 |
EP1196259B1 true EP1196259B1 (de) | 2002-12-04 |
Family
ID=7908609
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00938562A Expired - Lifetime EP1196259B1 (de) | 1999-05-19 | 2000-05-18 | Bauteil aus metallschaum enthaltenden verbundwerkstoff und verfahren zu seiner herstellung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6676896B1 (de) |
EP (1) | EP1196259B1 (de) |
AT (1) | ATE228907T1 (de) |
AU (1) | AU5389600A (de) |
CA (1) | CA2374487A1 (de) |
DE (2) | DE10024004C2 (de) |
WO (1) | WO2000071285A1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10042569C1 (de) * | 2000-08-25 | 2002-04-04 | Christian Steglich | Verfahren und Einrichtung zur Herstellung von Verbundwerkstoffen mit einem Kern aus Metallschaum |
DE10127716A1 (de) * | 2001-06-07 | 2002-12-12 | Goldschmidt Ag Th | Verfahren zur Herstellung von Metall/Metallschaum-Verbundbauteilen |
DE10158627B4 (de) * | 2001-11-29 | 2005-08-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Trägerstrukturen zur Aufnahme von Kräften und Verformungsenergie |
DE10246454A1 (de) * | 2002-10-04 | 2004-04-15 | Rwth Aachen | Herstellung beschichteter geschäumter Bauteile und Bauteile mit keramischer oder Hartstoffbeschichtung |
DE10260418A1 (de) * | 2002-12-21 | 2004-07-15 | Wilhelm Karmann Gmbh | Bauteile und Halbzeuge mit metallischer Schaumlage |
EP1468765A1 (de) * | 2003-04-16 | 2004-10-20 | Corus Technology BV | Vorform für geschäumtes Platteprodukt und daraus hergestellte geschäumter Gegenstand |
JP2006062365A (ja) * | 2004-08-25 | 2006-03-09 | Heidelberger Druckmas Ag | 版を製造する方法 |
US7166326B1 (en) * | 2004-12-14 | 2007-01-23 | Palo Alto Research Center (Parc) | Method of electroplating stressed metal springs |
DE102005037069B4 (de) * | 2005-08-05 | 2010-03-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Poröse Verbundwerkstoffe auf Basis eines Metalls und Verfahren zu deren Herstellung |
DE102006020860B4 (de) * | 2006-05-04 | 2008-02-07 | Alulight International Gmbh | Verfahren zur Herstellung von Verbundkörpern sowie danach hergestellte Verbundkörper |
DE102014222251A1 (de) * | 2014-10-31 | 2016-05-04 | Bayerische Motoren Werke Aktiengesellschaft | Verfahren zum Herstellen einer Schaumstoffstruktur |
EP3115134A1 (de) * | 2015-07-06 | 2017-01-11 | Deutsche Edelstahlwerke GmbH | Verfahren zum herstellen eines aus einem vielschichtigen metallwerkstoffverbund bestehenden verbundblechs, mehrschichtiges verbundblech und verwendung eines solchen verbundblechs |
DE102020208285A1 (de) * | 2020-07-02 | 2022-01-05 | HAVEL metal foam GmbH | Unterfahrschutz für ein Fahrzeug mit Metallschaum in einem Hohlprofil |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR615147A (fr) | 1925-09-12 | 1926-12-30 | Produit métallique pour l'obtention d'objets laminés, moulés ou autres, et procédés pour sa fabrication | |
DE4101630A1 (de) | 1990-06-08 | 1991-12-12 | Fraunhofer Ges Forschung | Verfahren zur herstellung aufschaeumbarer metallkoerper und verwendung derselben |
DE4426627C2 (de) | 1993-07-29 | 1997-09-25 | Fraunhofer Ges Forschung | Verfahren zur Herstellung eines metallischen Verbundwerkstoffes |
DE19501659C1 (de) * | 1995-01-20 | 1996-05-15 | Daimler Benz Ag | Verfahren zur Herstellung eines Metallschaumteils |
WO1997031739A1 (en) | 1996-03-03 | 1997-09-04 | Tosoh Smd, Inc. | Method for producing near net shape planar sputtering targets and an intermediate therefor |
DE19704968C2 (de) | 1997-01-28 | 1999-06-02 | Mannesmann Ag | Behälter zur Speicherung von Druckgas |
-
2000
- 2000-05-18 EP EP00938562A patent/EP1196259B1/de not_active Expired - Lifetime
- 2000-05-18 AT AT00938562T patent/ATE228907T1/de not_active IP Right Cessation
- 2000-05-18 DE DE10024004A patent/DE10024004C2/de not_active Expired - Fee Related
- 2000-05-18 US US10/009,708 patent/US6676896B1/en not_active Expired - Fee Related
- 2000-05-18 DE DE50000892T patent/DE50000892D1/de not_active Expired - Lifetime
- 2000-05-18 CA CA002374487A patent/CA2374487A1/en not_active Abandoned
- 2000-05-18 AU AU53896/00A patent/AU5389600A/en not_active Abandoned
- 2000-05-18 WO PCT/DE2000/001559 patent/WO2000071285A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
DE10024004A1 (de) | 2000-11-23 |
US6676896B1 (en) | 2004-01-13 |
DE50000892D1 (de) | 2003-01-16 |
DE10024004C2 (de) | 2002-06-06 |
WO2000071285A1 (de) | 2000-11-30 |
ATE228907T1 (de) | 2002-12-15 |
CA2374487A1 (en) | 2000-11-30 |
AU5389600A (en) | 2000-12-12 |
EP1196259A1 (de) | 2002-04-17 |
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