DE10002281B4 - Component in sandwich construction, in particular body part for motor vehicles, and method for producing such a component - Google Patents

Component in sandwich construction, in particular body part for motor vehicles, and method for producing such a component Download PDF

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Publication number
DE10002281B4
DE10002281B4 DE10002281A DE10002281A DE10002281B4 DE 10002281 B4 DE10002281 B4 DE 10002281B4 DE 10002281 A DE10002281 A DE 10002281A DE 10002281 A DE10002281 A DE 10002281A DE 10002281 B4 DE10002281 B4 DE 10002281B4
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Prior art keywords
layer
recesses
adhesive
component according
base sheet
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Expired - Fee Related
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DE10002281A
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German (de)
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DE10002281A1 (en
Inventor
Reinhard Dr. Müller
Alexander Dr. Heescher
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Volkswagen AG
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Volkswagen AG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/06—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions for securing layers together; for attaching the product to another member, e.g. to a support, or to another product, e.g. groove/tongue, interlocking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B11/00—Layered products comprising a layer of bituminous or tarry substances
    • B32B11/04—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B11/08—Layered products comprising a layer of bituminous or tarry substances comprising such bituminous or tarry substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/10—Properties of the layers or laminate having particular acoustical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00—Vehicles
    • B32B2605/08—Cars

Landscapes

  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Body Structure For Vehicles (AREA)
  • Laminated Bodies (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

Bauteil in Sandwichbauweise, insbesondere Karosserieteil für Kraftfahrzeuge, mit einem Basisblech (10), einer Deckschicht (13) aus dehnungsfestem Material und einer zwischen Basisblech (10) und Deckschicht (13) angeordneten, mit dem Basisblech (10) verbundenen Abstandsschicht (11) aus nichtmetallischem Material, dadurch gekennzeichnet, dass die Abstandsschicht (11) – über ihre Fläche verteilt – Ausnehmungen (12) aufweist, innerhalb derer die Deckschicht (13) jeweils punktuell durch einen Kleber, insbesondere Schmelzkleber (15) unmittelbar mit dem Basisblech (10) schwingungstechnisch entkoppelnd verklebt ist.component in sandwich construction, in particular body part for motor vehicles, with a base sheet (10), a cover layer (13) made of stretch-resistant material and one between base plate (10) and cover layer (13) arranged, Spacer layer (11) of non-metallic material joined to the base sheet (10) Material, characterized in that the spacer layer (11) - over their area distributed - recesses (12), within which the cover layer (13) in each case selectively by an adhesive, in particular hot melt adhesive (15) directly glued to the base plate (10) decoupling vibrationally is.

Figure 00000001
Figure 00000001

Description

Die Erfindung bezieht sich auf ein Bauteil nach dem Oberbegriff des Patentanspruchs 1 und auf ein Verfahren zu dessen Herstellung.The The invention relates to a component according to the preamble of Patent claim 1 and to a method for its production.

Bei bekannten Bauteilen der vorbezeichneten Art, in Kraftfahrzeugen als sogenannte Entdröhnung verwendet, besteht das Problem, dass sich Schwingungen des Basisblechs auf die – z.B. aus Aluminiumblech gefertigte – Deckschicht übertragen, somit diese zu entsprechenden Schwingungen anregen.at known components of the aforementioned type, in motor vehicles as so-called Entdröhnung used, the problem is that there are vibrations of the base plate to the - e.g. Made of aluminum sheet - transferred cover layer, thus stimulate them to appropriate vibrations.

Aus der DE 197 40 844 A1 ist ein Sandwichbauteil zum Auskoppeln von Schwingungen bekannt.From the DE 197 40 844 A1 is a sandwich component for decoupling vibrations known.

Aufgabe der Erfindung ist es, eine direkte Anregung der Deckschicht durch das Basisblech zu vermeiden.task The invention is a direct excitation of the cover layer by to avoid the base sheet.

Gemäß der Erfindung wird die Aufgabe bei einem Bauteil und einem Verfahren durch die Merkmale des Patentanspruchs 1 bzw. der Patentansprüche 11 oder 12 gelöst.According to the invention The task is in a component and a method by the Features of claim 1 or claims 11 or 12 solved.

Vorteilhafte Ausgestaltungen des gegenständlichen Teils der Erfindung können den Patentansprüchen 2–10 entnommen werden.advantageous Embodiments of the subject Part of the invention can the claims Taken from 2-10 become.

Bei der erfindungsgemäßen punktuellen Verklebung der Deckschicht mit dem Basisblech handelt es sich um eine entkoppelnde Verklebung. Hierbei geht es nicht darum, eine akustische Entkopplung des gesamten Bauteils, also der gesamten "Entdröhnung" zu bewirken. Entkoppelt wird vielmehr nur die Deckschicht, wodurch ein – andernfalls gegebener – schwingungstechnischer Kurzschluss vermieden wird.at the punctual Bonding of the cover layer with the base sheet is about a decoupling bond. This is not about a To cause acoustic decoupling of the entire component, so the entire "Entdröhnung". decoupled Rather, only the top layer, whereby a - otherwise given - vibrational Short circuit is avoided.

In der Zeichnung sind zwei Ausführungsbeispiele der Erfindung dargestellt, die im folgenden beschrieben werden. Es zeigt – jeweils in vergrößerter Darstellung –:In the drawing are two embodiments of the invention, which will be described below. It shows - each in an enlarged view -:

1 eine – ausschnittsweise dargestellte – Ausführungsform eines Bauteils (Entdröhnung für Kraftfahrzeuge), im Vertikalschnitt und 1 a - fragmentary illustrated - embodiment of a component (Entdröhnung for motor vehicles), in vertical section and

2 eine abgewandelte Variante eines derartigen Bauteils, in Schnittdarstellung entsprechend 1. 2 a modified variant of such a component, according to a sectional view 1 ,

Die in 1 und 2 dargestellte Entdröhnung weist ein Basisblech 10 auf, das mit einer Abstandsschicht 11 fest verbunden ist. Die Abstandsschicht 11 besteht aus einem für die genannten Zwecke geeigneten Material, z.B. aus Bitumen-Kunststofffolie. Sie weist – über ihre Fläche verteilt – mehrere Ausnehmungen auf, von denen jeweils eine aus der Zeichnung ersichtlich und mit 12 beziffert ist. Auf der Abstandsschicht 11 liegt eine Deckschicht 13 aus dehnungsfestem Material, z.B. Aluminiumblech. Zwischen der Deckschicht 13 und der Abstandsschicht 11 kann noch eine sogenannte Dissipationsschicht, d.h. eine Verlustschicht (nicht dargestellt) angeordnet sein.In the 1 and 2 shown Entdröhnung has a base plate 10 on, with a spacer layer 11 is firmly connected. The spacer layer 11 consists of a suitable material for the purposes mentioned, for example made of bitumen plastic film. It has - distributed over its surface - several recesses, one of which can be seen from the drawing and with 12 is numbered. On the spacer layer 11 lies a cover layer 13 Made of stretch-resistant material, eg aluminum sheet. Between the cover layer 13 and the spacer layer 11 can still a so-called dissipation layer, ie a loss layer (not shown) may be arranged.

Die wesentliche Besonderheit der dargestellten Entdröhnung besteht darin, dass die Deckschicht 13 im Bereich der Ausnehmungen 12 – gewissermaßen punktuell – in die jeweilige Ausnehmung 12 hineinverprägt und dort mit dem Basisblech 10 verklebt ist. Hierbei bezeichnet 14 die betreffende Verprägung und 15 die eine direkte Verbindung der Teile 10 und 13 bildende Klebeschicht. Erfindungswesentliche Funktion der Klebeschicht 15 ist eine Entkopplung der Deckschicht 13 gegenüber dem Basisblech 10 in schwingungstechnischer Hinsicht. Dadurch lässt sich ein schwingungstechnischer Kurzschluss zwischen Basisblech 10 und Deckschicht 13, d.h. eine direkte Anregung der Deckschicht 13 durch das Basisblech 10, verhindern.The essential feature of the illustrated Entdröhnung is that the top layer 13 in the area of the recesses 12 - to some extent - in the respective recess 12 embossed and there with the base plate 10 is glued. Hereby designated 14 the relevant stamp and 15 the a direct connection of the parts 10 and 13 forming adhesive layer. Essential to the function of the adhesive layer 15 is a decoupling of the cover layer 13 opposite the base plate 10 in vibrational terms. This allows a vibrational short circuit between base plate 10 and topcoat 13 ie a direct excitation of the cover layer 13 through the base sheet 10 , prevent.

Da die Anbringung der Entdröhnung in einem thermischen Prozess (Gegenkraft) erfolgt, handelt es sich um eine schmelzklebende Entdröhnung. Demgemäß kommt für die Klebeschicht 15 ein Schmelzkleber, z.B. eine Sillikonkleber zum Einsatz. Das verwendete Klebematerial sollte – zur Vermeidung unerwünschter Geräusch – bzw. Wärmebrücken – auch im ausgehärteten Zustand noch eine vergleichsweise weiche Konsistenz besitzen.Since the attachment of the Entdröhnung takes place in a thermal process (counterforce), it is a Schmelzklebende Entdröhnung. Accordingly, comes for the adhesive layer 15 a hot melt adhesive, for example a Sillikonkleber used. The adhesive material used should - to avoid unwanted noise or heat bridges - even in the cured state still have a relatively soft consistency.

Eine Besonderheit der Ausführungsform nach 2 besteht darin, dass die Deckschicht 13 im Bereich der Verprägungen 14 jeweils eine Ausnehmung 16 aufweist, die zum Einbringen der Klebeschicht 15 dienen kann. Nach Durchführung der Verklebung kann die Ausnehmung 16 nach außen durch eine Schutzkappe 17, ebenfalls aus entsprechendem Klebematerial, abgedeckt sein.A special feature of the embodiment according to 2 is that the topcoat 13 in the field of stamping 14 one recess each 16 having, for introducing the adhesive layer 15 can serve. After performing the bonding, the recess 16 to the outside through a protective cap 17 , also from appropriate adhesive material, be covered.

Claims (12)

Bauteil in Sandwichbauweise, insbesondere Karosserieteil für Kraftfahrzeuge, mit einem Basisblech (10), einer Deckschicht (13) aus dehnungsfestem Material und einer zwischen Basisblech (10) und Deckschicht (13) angeordneten, mit dem Basisblech (10) verbundenen Abstandsschicht (11) aus nichtmetallischem Material, dadurch gekennzeichnet, dass die Abstandsschicht (11) – über ihre Fläche verteilt – Ausnehmungen (12) aufweist, innerhalb derer die Deckschicht (13) jeweils punktuell durch einen Kleber, insbesondere Schmelzkleber (15) unmittelbar mit dem Basisblech (10) schwingungstechnisch entkoppelnd verklebt ist.Component in sandwich construction, in particular body part for motor vehicles, with a base plate ( 10 ), a topcoat ( 13 ) made of stretch-resistant material and one between base sheet ( 10 ) and cover layer ( 13 ), with the base sheet ( 10 ) connected spacer layer ( 11 ) of non-metallic material, characterized in that the spacer layer ( 11 ) - distributed over its surface - recesses ( 12 ) within which the top layer ( 13 ) each punctually by an adhesive, in particular hot melt adhesive ( 15 ) directly with the base sheet ( 10 ) is bonded decoupling vibration technology. Bauteil nach Anspruch 1, dadurch gekennzeichnet, dass die Deckschicht (13) in die Ausnehmungen (12) hineinverprägt ist (14), derart, daß die (punktuelle) Klebeschicht (15) eine geringere Dicke als die Abstandsschicht (11) aufweist.Component according to claim 1, characterized gekenn records that the top layer ( 13 ) into the recesses ( 12 ) is imprinted ( 14 ), such that the (selective) adhesive layer ( 15 ) has a smaller thickness than the spacer layer ( 11 ) having. Bauteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Deckschicht (13) im Bereich der Ausnehmungen (12) der Abstandsschicht (11) jeweils (mindestens) eine Ausnehmung (16) zur Einbringung des Klebers (15) aufweist.Component according to claim 1 or 2, characterized in that the cover layer ( 13 ) in the area of the recesses ( 12 ) of the spacer layer ( 11 ) each (at least) one recess ( 16 ) for the introduction of the adhesive ( 15 ) having. Bauteil nach Anspruch 3, dadurch gekennzeichnet, dass die Ausnehmungen (16) der Deckschicht (13) jeweils von einer Kappe (17) des Klebers überdeckt sind.Component according to claim 3, characterized in that the recesses ( 16 ) of the top layer ( 13 ) each of a cap ( 17 ) of the adhesive are covered. Bauteil nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Deckschicht (13) aus Metall besteht.Component according to one or more of the preceding claims, characterized in that the cover layer ( 13 ) consists of metal. Bauteil nach Anspruch 5, dadurch gekennzeichnet, dass die Deckschicht (13) ein Aluminiumblech ist.Component according to claim 5, characterized in that the cover layer ( 13 ) is an aluminum sheet. Bauteil nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Kleber (15) zur punktuellen Verklebung von Basisblech (10) und Deckschicht (13) ein Weichkleber ist.Component according to one or more of the preceding claims, characterized in that the adhesive ( 15 ) for the selective bonding of base sheet ( 10 ) and cover layer ( 13 ) is a soft glue. Bauteil nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass der Kleber (15) zur punktuellen Verklebung von Basisblech (10) und Deckschicht (13) ein Sillikonkleber ist.Component according to one or more of the preceding claims, characterized in that the adhesive ( 15 ) for the selective bonding of base sheet ( 10 ) and cover layer ( 13 ) is a Sillikonkleber. Bauteil nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Abstandsschicht (11) aus Bitumen-Kunststofffolie besteht.Component according to one or more of the preceding claims, characterized in that the spacer layer ( 11 ) consists of bitumen plastic film. Bauteil nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, dass zwischen Deckschicht (13) und Abstandsschicht (11) eine Dissipationsschicht (Verlustschicht) angeordnet ist.Component according to one or more of the preceding claims, characterized in that between cover layer ( 13 ) and spacer layer ( 11 ) a dissipation layer (loss layer) is arranged. Verfahren zur Herstellung eines Bauteils nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch folgende Verfahrensschritte: 1. Verbinden der gelochten Abstandsschicht (11) mit dem Basisblech (10), 2. Aufbringen des Klebers (15) durch die Ausnehmungen (12) der Abstandsschicht (11) hindurch auf die dort freiliegenden Stellen des Basisblechs (10), 3. Auflegen der Deckschicht (13) auf die Abstandsschicht (11), 4. Verprägung (14) der Deckschicht (13) in die Ausnehmungen (12) der Abstandsschicht (11) hinein, dabei punktuelle Verklebung (15) der Deckschicht (13) mit dem Basisblech (10).Method for producing a component according to one or more of the preceding claims, characterized by the following method steps: 1. Connecting the perforated spacer layer (FIG. 11 ) with the base sheet ( 10 ), 2. application of the adhesive ( 15 ) through the recesses ( 12 ) of the spacer layer ( 11 ) through to the exposed areas of the base sheet ( 10 ), 3. application of the cover layer ( 13 ) on the spacer layer ( 11 ), 4th stamp ( 14 ) of the top layer ( 13 ) into the recesses ( 12 ) of the spacer layer ( 11 ), while selective bonding ( 15 ) of the top layer ( 13 ) with the base sheet ( 10 ). Verfahren zur Herstellung eines Bauteils nach einem oder mehreren der Ansprüche 1–10, gekennzeichnet durch folgende Verfahrensschritte: 1. Verbinden der gelochten Abstandsschicht (11) mit dem Basisblech (10), 2. Auflegen der gelochten Deckschicht (13) auf die Abstandsschicht (11), derart, dass die Ausnehmungen (16) der Deckschicht (13) mit den Ausnehmungen (12) der Abstandsschicht (11) korrespondieren, 3. Verprägung (14) der Deckschicht (13) in die Ausnehmungen (12) der Abstandsschicht (11) hinein, 4. Einbringung des Klebers durch die Ausnehmungen (16) der Deckschicht (13) hindurch in den Zwischenraum zwischen Basisblech (10) und Deckschicht (13), hierbei punktuelle Verklebung (15) von Basisblech (10) und Deckschicht (13), 5. Überdeckung der Ausnehmungen (16) jeweils durch eine Kleberkappe (17).Method for producing a component according to one or more of Claims 1-10, characterized by the following method steps: 1. Connecting the perforated spacer layer (FIG. 11 ) with the base sheet ( 10 ), 2. placing the perforated cover layer ( 13 ) on the spacer layer ( 11 ), such that the recesses ( 16 ) of the top layer ( 13 ) with the recesses ( 12 ) of the spacer layer ( 11 ), 3. stamp ( 14 ) of the top layer ( 13 ) into the recesses ( 12 ) of the spacer layer ( 11 ), 4. introduction of the adhesive through the recesses ( 16 ) of the top layer ( 13 ) through into the space between base plate ( 10 ) and cover layer ( 13 ), in this case selective bonding ( 15 ) of base sheet ( 10 ) and cover layer ( 13 ), 5. Overlapping of the recesses ( 16 ) each by an adhesive cap ( 17 ).
DE10002281A 2000-01-20 2000-01-20 Component in sandwich construction, in particular body part for motor vehicles, and method for producing such a component Expired - Fee Related DE10002281B4 (en)

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DE10002281A DE10002281B4 (en) 2000-01-20 2000-01-20 Component in sandwich construction, in particular body part for motor vehicles, and method for producing such a component

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7919174B2 (en) * 2007-07-20 2011-04-05 GM Global Technology Operations LLC Tailored core laminated sheet metal
CN102806697B (en) * 2011-06-01 2015-03-25 深圳光启高等理工研究院 Dielectric substrate splicing structure and metamaterial
EP3715752A1 (en) * 2019-03-26 2020-09-30 Liebherr-Hausgeräte Ochsenhausen GmbH Cover layer composite for a film-covered vacuum insulation body

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740647A1 (en) * 1977-09-09 1979-03-15 Buch & Koelzer Ohg COMPOSITE MATERIAL IN SANDWICH CONSTRUCTION, METHOD OF MANUFACTURING IT AND ITS USE
DE2854766A1 (en) * 1978-12-19 1980-07-10 Audi Nsu Auto Union Ag Bonding two coachwork components with large surface tolerances - by adhesive strip with edging seals preventing material loss
DE3151266A1 (en) * 1981-12-24 1983-07-14 Bayerische Motoren Werke AG, 8000 München Construction of an adhesion device from two thin-walled components, especially sheet-metal parts
DE4015169A1 (en) * 1990-05-11 1991-11-14 Bayerische Motoren Werke Ag Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between
WO1996021560A2 (en) * 1995-01-13 1996-07-18 Minnesota Mining And Manufacturing Company Damped laminates with improved fastener force retention, a method of making, and novel tools useful in making
DE19740844A1 (en) * 1997-09-17 1999-03-18 Cww Gerko Akustik Gmbh & Co Kg Vibration block to block vibrations from plate sections and housings, and especially vehicle bodywork
DE29823412U1 (en) * 1998-06-20 1999-05-12 Dr.Ing.H.C. F. Porsche Ag, 70435 Stuttgart Composite sheet metal part

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2740647A1 (en) * 1977-09-09 1979-03-15 Buch & Koelzer Ohg COMPOSITE MATERIAL IN SANDWICH CONSTRUCTION, METHOD OF MANUFACTURING IT AND ITS USE
DE2854766A1 (en) * 1978-12-19 1980-07-10 Audi Nsu Auto Union Ag Bonding two coachwork components with large surface tolerances - by adhesive strip with edging seals preventing material loss
DE3151266A1 (en) * 1981-12-24 1983-07-14 Bayerische Motoren Werke AG, 8000 München Construction of an adhesion device from two thin-walled components, especially sheet-metal parts
DE4015169A1 (en) * 1990-05-11 1991-11-14 Bayerische Motoren Werke Ag Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between
WO1996021560A2 (en) * 1995-01-13 1996-07-18 Minnesota Mining And Manufacturing Company Damped laminates with improved fastener force retention, a method of making, and novel tools useful in making
DE19740844A1 (en) * 1997-09-17 1999-03-18 Cww Gerko Akustik Gmbh & Co Kg Vibration block to block vibrations from plate sections and housings, and especially vehicle bodywork
DE29823412U1 (en) * 1998-06-20 1999-05-12 Dr.Ing.H.C. F. Porsche Ag, 70435 Stuttgart Composite sheet metal part

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