DE4015169A1 - Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between - Google Patents

Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between

Info

Publication number
DE4015169A1
DE4015169A1 DE4015169A DE4015169A DE4015169A1 DE 4015169 A1 DE4015169 A1 DE 4015169A1 DE 4015169 A DE4015169 A DE 4015169A DE 4015169 A DE4015169 A DE 4015169A DE 4015169 A1 DE4015169 A1 DE 4015169A1
Authority
DE
Germany
Prior art keywords
sheet
absorbing material
sound
composite
steel sheet
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Withdrawn
Application number
DE4015169A
Other languages
German (de)
Inventor
Marko Kovacic
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Priority to DE4015169A priority Critical patent/DE4015169A1/en
Publication of DE4015169A1 publication Critical patent/DE4015169A1/en
Withdrawn legal-status Critical Current

Links

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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • 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
    • B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
    • B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • 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
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • B32B2038/042—Punching
    • 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
    • B32B2307/102—Insulating
    • 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
    • B32B2311/30—Iron, e.g. steel
    • 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

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Laminated Bodies (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

Formed steel component, e.g. forming part of an automobile, consists of a sheet layer on which sound absorbing material is placed at points or over specific areas before a further sheet is positioned over the assembly and the steel sheets are welded together by spot welding. The composite is formed by deep drawing, the sound absorbing material being distributed between the sheets. The material can be applied by a screen printing process. ADVANTAGE - Optimum positioning of sound absorbing material, avoiding excessive use of materials.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen ei­ nes zumindest zweilagigen Stahlblech-Formteiles mit zu­ mindest einer schalldämmenden Zwischenschicht. Derar­ tige Stahlblech-Formteile werden beispielsweise im Au­ tomobilbau eingesetzt.The invention relates to a method for producing egg nes at least two-layer steel sheet molded part with at least one soundproofing intermediate layer. Derar sheet steel parts are, for example, in the Au tomobilbau used.

Bekannt sind beispielsweise die sog. Antiphon-Bleche, die von einem Hersteller für schallgedämmte Doppelble­ che als Meterware geliefert und später in die ge­ wünschte Form tiefgezogen werden. Diese Antiphonbleche stellen im wesentlichen ein zweilagiges Doppelblech mit zwischenliegender Schalldämmschicht dar. Diese Schall­ dämmschicht haftet an den Blechoberflächen und fixiert somit die beiden Blechlagen des Doppelbleches relativ zueinander.For example, the so-called antiphon sheets are known, from a manufacturer of soundproof double sheets che delivered by the meter and later in the ge desired shape are deep drawn. These antiphon sheets essentially provide a two-layer double sheet intermediate soundproofing layer. This sound insulation layer adheres to the sheet metal surfaces and is fixed thus the two sheet layers of the double sheet relative to each other.

Da die Verwendung derartiger vorgefertigter Schalldämm­ bleche bei der anschließenden Fertigung des Stahlblech- Formteiles zu übermäßig hohem Verschnitt führen kann, hat sich die Erfindung die Aufgabe gestellt, ein Her­ stellverfahren aufzuzeigen, das einen geringeren Res­ sourcenbedarf aufweist.Since the use of such prefabricated sound insulation sheets during the subsequent production of the steel sheet Molded part can lead to excessively high waste,  the invention has set itself the task of a Her to show adjustment procedures that a lower res has resource requirements.

Zur Lösung dieser Aufgabe ist vorgesehen, daß auf eine erste Blechlage punktuell oder bereichsweise schalldäm­ mendes Material aufgebracht und hierauf eine weitere Blechlage aufgelegt wird, wonach die Blechlagen mitein­ ander verbunden werden. Hierdurch entsteht ein mehrla­ giges Stahlblech, das anschließend durch Tiefziehen ge­ formt wird, wobei das schalldämmende Material zumindest teilweise zwischen den Blechlagen verteilt wird.To solve this problem it is provided that on a The first sheet layer is soundproof at certain points or in some areas Material applied and then another Sheet metal layer is placed, after which the sheet metal layers together be connected. This creates a multi steel sheet, which is then ge by deep drawing is formed, the sound-absorbing material at least is partially distributed between the sheet layers.

Ein Aspekt dieses Verfahrens ist es, daß das schalldäm­ mende Material nicht über der gesamten Blechoberfläche aufgebracht werden muß, sondern gezielt vorrangig an den Stellen, an denen auch eine optimale Schalldämmwir­ kung erzielt wird. Darüber hinaus kann ein schalldäm­ mendes Material zum Einsatz kommen, das im Hinblick auf seine schalldämmenden Eigenschaften optimiert ist. Zu­ sätzliche Eigenschaften, wie beispielsweise Hafteigen­ schaften unter Einbehaltung einer gewissen Viskosität muß das Schalldämmaterial dagegen nicht aufweisen, da zur Fixierung der Blechlagen untereinander diese mit­ einander verbunden werden. Ein Aspekt der Erfindung ist auch, daß die schalldämmende Zwischenschicht quasi durch das Tiefziehen aufgebaut wird, indem durch die Verformung der Blechlagen das schalldämmende Material zumindest teilweise von den ursprünglichen punktuellen oder bereichsweisen Auftragstellen verdrängt wird.One aspect of this method is that the soundproof material not over the entire sheet surface must be applied, but primarily with priority the places where there is also optimal sound insulation kung is achieved. In addition, a soundproof material that is used with regard to its soundproofing properties is optimized. To additional properties, such as adhesive dough with a certain viscosity on the other hand, the soundproofing material does not have to have, since to fix the sheet metal layers with each other to be connected. One aspect of the invention is also that the sound-absorbing intermediate layer quasi is built up by deep drawing by Deformation of the sheet metal layers the soundproofing material at least partially from the original punctual ones or area-by-area order sites.

Vorteilhafterweise können durch Anwendung dieses Ver­ fahrens Stahlblechlagen zum Einsatz kommen, die in ih­ ren Abmessungen dem Formteil bereits angepaßt sind. Ebenso ist es möglich, die einzelnen Stahlblechlagen vor dem Aufbringen des schalldämmenden Materials und vor dem Tiefziehen beispielsweise durch Ausstanzen mit Aussparungen zu versehen, die am fertigen Formteil bei­ spielsweise zur Aufnahme von Anbauteilen erforderlich sind.Advantageously, by using this Ver driving sheet steel layers are used, which in ih ren dimensions of the molding are already adjusted. It is also possible to use the individual sheet steel layers before applying the sound absorbing material and  before deep drawing, for example by punching out To provide recesses in the finished molded part for example necessary to hold attachments are.

Die bereits oben angesprochene Verbindung der Blechla­ gen untereinander erfolgt vorzugsweise durch Punkt­ schweißen. Möglicherweise empfiehlt es sich in diesem Zusammenhang, beim Auftragen des schalldämmenden Mate­ rials auf die erste Blechlage die späteren Punkt­ schweißbereiche bereits auszusparen. Ein bevorzugtes Verfahren zum punktuellen bzw. bereichsweisen Auftragen des schalldämmenden Materiales arbeitet dabei nach ei­ nem Siebdruck-Verfahren. Als schalldämmendes Material können dabei Silikone oder PVC-Pasten, aber beispiels­ weise auch Polypropylen oder Polyethylen zum Einsatz kommen.The already mentioned connection of the Blechla mutually is preferably done by point welding. It may be recommended in this Connection, when applying the sound-absorbing mate rials on the first sheet layer the later point already cut out welding areas. A preferred one Process for selective or area-by-area application the soundproofing material works according to egg screen printing process. As a sound-absorbing material can be silicone or PVC pastes, but for example also use polypropylene or polyethylene come.

Ein Ausführungsbeispiel für die Erfindung ist nicht ge­ zeigt, da es anhand obiger Erläuterungen dem Fachmann möglich sein müßte, ein zumindest zweilagiges Stahl­ blech-Formteil mit zumindest einer schalldämmenden Zwi­ schenschicht nach einem erfindungsgemäßen Verfahren zu fertigen.An embodiment of the invention is not ge shows that it is based on the above explanations to the expert should be possible, at least a two-layer steel sheet metal molded part with at least one soundproofing intermediate layer by a method according to the invention manufacture.

Claims (5)

1. Verfahren zum Herstellen eines zumindest zweilagigen Stahlbech-Formteiles mit zumindest einer schalldämmenden Zwischenschicht, wobei auf eine erste Blechlage punktuell oder bereichsweise schalldämmendes Material aufgebracht und hierauf eine weitere Blechlage aufgelegt wird, wonach die Blechlagen miteinander verbunden werden, wodurch ein mehrlagiges Stahlblech entsteht, das anschließend durch Tiefziehen geformt wird, wobei das schalldämmende Material zumindest teilweise zwischen den Blechlagen verteilt wird.1. Method of making at least one two-layer steel sheet molded part with at least a sound-absorbing intermediate layer, being selective at a first sheet layer or soundproofing material applied in some areas and another sheet metal layer is placed on top of it, after which the sheet layers are joined together be, making a multi-layer steel sheet arises, which is then drawn by deep drawing is molded, the sound absorbing material at least partially between the sheet layers is distributed. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Blechlagen durch Punktschweißen miteinander verbunden werden.2. The method according to claim 1, characterized in that the sheet metal layers are connected to one another by spot welding. 3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das schalldämmende Material in einem Siebdruck-Verfahren aufgebracht wird. 3. The method according to claim 1 or 2, characterized in that the sound absorbing Material applied in a screen printing process becomes.   4. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß in den Abmessungen dem Formteil angepaßte Stahlblechlagen zum Einsatz kommen.4. The method according to any one of claims 1 to 3, characterized in that the dimensions of the Steel sheet layers adapted to the molded part are used come. 5. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß Stahlblechlagen zum Einsatz kommen die mit für das Formteil erforderlichen Ausstanzungen versehen sind.5. The method according to any one of claims 1 to 4, characterized in that sheet steel layers for They are used for the molded part necessary punchings are provided.
DE4015169A 1990-05-11 1990-05-11 Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between Withdrawn DE4015169A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4015169A DE4015169A1 (en) 1990-05-11 1990-05-11 Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4015169A DE4015169A1 (en) 1990-05-11 1990-05-11 Composite formed steel part - consists of deep drawn composite of steel sheet spot welded together with sound-absorbing material located at critical positions between

Publications (1)

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DE4015169A1 true DE4015169A1 (en) 1991-11-14

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636517A1 (en) * 1993-07-27 1995-02-01 Bayerische Motoren Werke Aktiengesellschaft Method for producing a double wall car body part with an insulating layer
DE4334815A1 (en) * 1993-10-13 1995-04-20 Wilfried Lengert Component for noise insulation
DE29614430U1 (en) * 1996-08-09 1996-12-12 Janz, Norbert, Dipl.-Ing., 14612 Falkensee Sandwich component
DE19827549A1 (en) * 1998-06-20 1999-12-23 Porsche Ag Assembled sheet mold part for motor vehicle industry
DE10002281A1 (en) * 2000-01-20 2001-07-26 Volkswagen Ag Component with sandwich structure, in particular, for motor vehicle bodywork comprises a distancing layer which is provided with cutouts serving for spot attachment of the cover layer to the base sheet
DE19700628C2 (en) * 1997-01-10 2003-03-20 Reinz Dichtungs Gmbh Method for producing a heat shield and a heat shield produced using the method
DE102016000042A1 (en) 2016-01-04 2017-07-06 Fichthorn GmbH & Co. KG Method and arrangement for producing a formed part

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB378453A (en) * 1931-05-11 1932-08-11 Fisher & Ludlow Ltd Improvements relating to the bodies of vehicles or other structures
DE1275885B (en) * 1960-12-10 1968-08-22 Maschf Augsburg Nuernberg Ag Sheet metal component, especially driver's cab for trucks
DE1301664B (en) * 1967-12-05 1969-08-21 Hoechst Ag Composite systems made of hard plates with vibration-absorbing viscoelastic intermediate layers with a wide temperature range
DE2214453A1 (en) * 1972-03-24 1973-10-04 American Cyanamid Co Vibration damping laminate - with metal layers bonded to perforated plastic sheet by adhesive contg reinforcement
DE3145949A1 (en) * 1981-11-20 1983-06-01 Bayerische Motoren Werke AG, 8000 München METHOD AND DEVICE FOR BONDING TWO COMPONENT COMPONENTS ON A LARGE AREA
DE3308843A1 (en) * 1982-05-18 1983-11-24 VEB Wissenschaftlich-Technisches Zentrum der holzverarbeitenden Industrie, DDR 8010 Dresden Process for producing mouldings from laminate materials
DE3445759A1 (en) * 1983-12-16 1985-06-27 Bridgestone Corp., Tokio/Tokyo VIBRATION SOUND ABSORBENT PLATE
EP0167455B1 (en) * 1984-06-29 1990-03-14 Kawasaki Steel Corporation Vibration damping composite laminate

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB378453A (en) * 1931-05-11 1932-08-11 Fisher & Ludlow Ltd Improvements relating to the bodies of vehicles or other structures
DE1275885B (en) * 1960-12-10 1968-08-22 Maschf Augsburg Nuernberg Ag Sheet metal component, especially driver's cab for trucks
DE1301664B (en) * 1967-12-05 1969-08-21 Hoechst Ag Composite systems made of hard plates with vibration-absorbing viscoelastic intermediate layers with a wide temperature range
DE2214453A1 (en) * 1972-03-24 1973-10-04 American Cyanamid Co Vibration damping laminate - with metal layers bonded to perforated plastic sheet by adhesive contg reinforcement
DE3145949A1 (en) * 1981-11-20 1983-06-01 Bayerische Motoren Werke AG, 8000 München METHOD AND DEVICE FOR BONDING TWO COMPONENT COMPONENTS ON A LARGE AREA
DE3308843A1 (en) * 1982-05-18 1983-11-24 VEB Wissenschaftlich-Technisches Zentrum der holzverarbeitenden Industrie, DDR 8010 Dresden Process for producing mouldings from laminate materials
DE3445759A1 (en) * 1983-12-16 1985-06-27 Bridgestone Corp., Tokio/Tokyo VIBRATION SOUND ABSORBENT PLATE
EP0167455B1 (en) * 1984-06-29 1990-03-14 Kawasaki Steel Corporation Vibration damping composite laminate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 62-187634 A., In: Patents Abstracts of Japan, M-664, Febr.3, 1988, Vol.12, No.36 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636517A1 (en) * 1993-07-27 1995-02-01 Bayerische Motoren Werke Aktiengesellschaft Method for producing a double wall car body part with an insulating layer
DE4334815A1 (en) * 1993-10-13 1995-04-20 Wilfried Lengert Component for noise insulation
DE29614430U1 (en) * 1996-08-09 1996-12-12 Janz, Norbert, Dipl.-Ing., 14612 Falkensee Sandwich component
DE19700628C2 (en) * 1997-01-10 2003-03-20 Reinz Dichtungs Gmbh Method for producing a heat shield and a heat shield produced using the method
DE19827549A1 (en) * 1998-06-20 1999-12-23 Porsche Ag Assembled sheet mold part for motor vehicle industry
DE10002281A1 (en) * 2000-01-20 2001-07-26 Volkswagen Ag Component with sandwich structure, in particular, for motor vehicle bodywork comprises a distancing layer which is provided with cutouts serving for spot attachment of the cover layer to the base sheet
DE10002281B4 (en) * 2000-01-20 2008-01-31 Volkswagen Ag Component in sandwich construction, in particular body part for motor vehicles, and method for producing such a component
DE102016000042A1 (en) 2016-01-04 2017-07-06 Fichthorn GmbH & Co. KG Method and arrangement for producing a formed part

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