EP0927589B9 - Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur - Google Patents

Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur Download PDF

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Publication number
EP0927589B9
EP0927589B9 EP98122771A EP98122771A EP0927589B9 EP 0927589 B9 EP0927589 B9 EP 0927589B9 EP 98122771 A EP98122771 A EP 98122771A EP 98122771 A EP98122771 A EP 98122771A EP 0927589 B9 EP0927589 B9 EP 0927589B9
Authority
EP
European Patent Office
Prior art keywords
component
area
areas
layer
flat
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
Application number
EP98122771A
Other languages
German (de)
English (en)
Other versions
EP0927589B1 (fr
EP0927589A2 (fr
EP0927589A3 (fr
Inventor
Wolfgang Seeliger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilhelm Karmann GmbH
Original Assignee
Wilhelm Karmann GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8050876&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0927589(B9) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wilhelm Karmann GmbH filed Critical Wilhelm Karmann GmbH
Publication of EP0927589A2 publication Critical patent/EP0927589A2/fr
Publication of EP0927589A3 publication Critical patent/EP0927589A3/fr
Application granted granted Critical
Publication of EP0927589B1 publication Critical patent/EP0927589B1/fr
Publication of EP0927589B9 publication Critical patent/EP0927589B9/fr
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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
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1103—Making porous workpieces or articles with particular physical characteristics
    • B22F3/1109—Inhomogenous pore distribution
    • 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
    • B22F3/11—Making porous workpieces or articles
    • B22F3/1121—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers
    • B22F3/1125—Making porous workpieces or articles by using decomposable, meltable or sublimatable fillers involving a foaming process

Definitions

  • the invention relates to a flat component with a surface extending layer of porous metallic foam material according to the preamble of claim 1.
  • the invention is based on the problem of improving such a component in such a way that that its connection possibilities with other components and structural elements, in particular a vehicle body can be improved.
  • the dilution ranges can for example, be designed as adhesive surfaces or have bores, so that they are penetrated by connecting bolts or rivets can. Because of the thinning, the length of such connecting means can be reduced. Welding is also under certain situations possible.
  • the area of thinning of screws or rivets can be round Take a surface shape, also an overall thinned longitudinal edge or a different shape of the thinned surface in the component is possible.
  • the Cover layers remain while the thinning area is pressed in their original thickness, only the foamed intermediate layer is diluted. Part of the pores is pressed in, with their marginal areas to get broken. The stability of the component is maintained the thickness of the solid metallic cover layers also in this area not endangered.
  • a component 1 according to the invention has a foamed layer 2 which comprises a metal powder and a blowing agent, which are produced by a mixing process were homogeneously mixed together and then under Exposure to pressure, for example by axial pressing or by extrusion a compact, foamable semi-finished 2 "compacted and solidified has been.
  • the foamed layer 2 is on top and provided on the underside with a solid metal sheet 3, 4, what However, this is not mandatory and in particular when an inventive device is designed Component 1 is dispensable as a crash element. It is still possible a foamed layer 2 with only one solid metallic To connect top layer 3 or 4 or groups of several different foamed layers, possibly separated by to produce solid metallic layers, for example to impact elements create, depending on the impact speed and thus energy different number of foamed layers on the deformation participates through the impact.
  • Such an essentially flat metallic composite material 6 the in any case comprises a foamable layer 2 ', has between the metallic sheets 3 'and 4' and the foamable layer 2 ' metallic bonds and is now available for further processing.
  • This flat composite material 6 is initially more suitable in pieces Size divided, for example with the help of a saw.
  • Such a composite material tailored to the desired external dimensions 6 is now formed into a semi-finished product 7, the Forming both a continuous curvature of the composite material 6 can effect as well as the expression of individual areas.
  • the shaping can be carried out using known customary shaping measures, for example by deep drawing with and without hold-down devices, as is the case in body construction is known, or by a one-sided forming process, such as that Fluid cell method.
  • a semi-finished product 7 is obtained, which is either flat or contains curved surface areas and possibly formed from this Contours and a foamable for further processing Layer 2 'includes.
  • the semi-finished product 7 is placed in a foaming mold 9, one of which Wall 12 a side 10 of the semi-finished product 7 substantially covering the entire surface supports so that this side 10 already have its final contour must, since a further contouring by foaming the semi-finished product 7 to a component 1 no longer deform this side 10 brings itself.
  • the walls 12, 13 of the foaming mold 9 can be made, for example Steel or ceramic. In any case, it is important that Component 1, in spite of its internal pressure prevailing when foaming Connection with the walls 12, 13 of the foaming mold 9 is received. Around These walls can prevent any sticking together here 12,13 may be coated.
  • the dilution is greater than 5% of the original Thickness of the foam layer, this is achieved in that during a part of the pores is pressed together and thereby their walls are destroyed. However, there still remain enough pores over the thickness of the foam layer even in the thinning area 16 received so as not to jeopardize stability here.
  • the thickness of the Cover layers 3, 4 remain completely intact, which also ensures stability contributes.
  • the component 1 can also be in a Be clamped.
  • a Device 17 is provided which has a tool base 18 and an embossing tool 19 includes a press formation 20.
  • the tool pad 18 is adapted to the outer contour of component 1, the impression 15 only one-sided. Alternatively, it would be conceivable from both sides to make 20 impressions into the thickness of the component 1 by means of press-formed shapes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Frames (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Powder Metallurgy (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (4)

  1. Pièce plate (1), notamment pièce de carrosserie pour véhicule automobile, comportant une couche (2) expansée s'étendant sur la surface, cette couche étant en une mousse métallique poreuse,
    caractérisée en ce que
    la pièce plate (1) comporte des zones amincies (16) au niveau desquelles son épaisseur est diminuée par un enfoncement parallèle des surfaces extérieures de la pièce (21, 22) et dans ces zones (16), une partie des pores de la couche expansée (2) est écrasée et les parois des pores sont cassées.
  2. Pièce selon la revendication 1,
    caractérisée en ce qu'
    elle comporte au moins d'un côté une couche expansée (2) délimitant une couche de recouvrement métallique massive (3, 4).
  3. Pièce selon l'une quelconque des revendications 1 ou 2,
    caractérisée en ce que
    les zones amincies (16) sont des surfaces de raccordement pour la pièce (1).
  4. Application d'un dispositif (17) avec un support d'outil (18) adapté au contour extérieur d'une pièce (1) à travailler, ainsi que d'un outil d'impression (19) qui comporte un bossage (20) pour exercer une poussée dans la pièce (1) contre le support d'outil (18) et réaliser une pièce selon l'une quelconque des revendications 1 à 3.
EP98122771A 1998-01-02 1998-12-01 Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur Expired - Lifetime EP0927589B9 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29800005U 1998-01-02
DE29800005U DE29800005U1 (de) 1998-01-02 1998-01-02 Bauteil, insbesondere Karosseriebauteil für Kraftfahrzeuge

Publications (4)

Publication Number Publication Date
EP0927589A2 EP0927589A2 (fr) 1999-07-07
EP0927589A3 EP0927589A3 (fr) 1999-07-21
EP0927589B1 EP0927589B1 (fr) 2002-09-04
EP0927589B9 true EP0927589B9 (fr) 2002-12-04

Family

ID=8050876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98122771A Expired - Lifetime EP0927589B9 (fr) 1998-01-02 1998-12-01 Elément de construction comprenant une couche de mousse métallique pour carrosseries de véhicules à moteur

Country Status (3)

Country Link
EP (1) EP0927589B9 (fr)
AT (1) ATE223275T1 (fr)
DE (2) DE29800005U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015002561A1 (de) * 2015-02-27 2016-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Herstellen eines metallischen Verbundkörpers sowie metallischer Verbundkörper

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001000355A1 (fr) * 1999-06-23 2001-01-04 Grillo-Werke Ag Corps en mousse metallique a base de zinc
DE102004040888A1 (de) * 2004-08-24 2006-04-13 Wilhelm Karmann Gmbh Herstellung von Bauteilen mit zumindest einer metallischen Schaumlage

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4277544A (en) * 1979-01-29 1981-07-07 Ipm Corporation Powder metallurgical articles and method of bonding the articles to ferrous base materials
JP3509031B2 (ja) * 1993-12-10 2004-03-22 片山特殊工業株式会社 リード付き金属多孔体の製造方法及び該方法により製造されたリード付き金属多孔体
AT405494B (de) * 1996-02-14 1999-08-25 Miba Frictec Gmbh Verfahren zum herstellen einer ebenen reiblamelle
DE19612781C1 (de) * 1996-03-29 1997-08-21 Karmann Gmbh W Bauteil aus metallischem Schaumwerkstoff, Verfahren zum Endformen dieses Bauteils und Vorrichtung zur Ausführung des Verfahrens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015002561A1 (de) * 2015-02-27 2016-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zum Herstellen eines metallischen Verbundkörpers sowie metallischer Verbundkörper

Also Published As

Publication number Publication date
ATE223275T1 (de) 2002-09-15
DE29800005U1 (de) 1999-05-06
EP0927589B1 (fr) 2002-09-04
EP0927589A2 (fr) 1999-07-07
EP0927589A3 (fr) 1999-07-21
DE59805404D1 (de) 2002-10-10

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