LU81301A1 - PROCESS FOR MANUFACTURING WELDED COMPOSITE SHEETS - Google Patents

PROCESS FOR MANUFACTURING WELDED COMPOSITE SHEETS Download PDF

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Publication number
LU81301A1
LU81301A1 LU81301A LU81301A LU81301A1 LU 81301 A1 LU81301 A1 LU 81301A1 LU 81301 A LU81301 A LU 81301A LU 81301 A LU81301 A LU 81301A LU 81301 A1 LU81301 A1 LU 81301A1
Authority
LU
Luxembourg
Prior art keywords
surface roughness
intermediate layer
sheets
composite sheets
height
Prior art date
Application number
LU81301A
Other languages
French (fr)
Inventor
J Crahay
Original Assignee
Centre Rech Metallurgique
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 Centre Rech Metallurgique filed Critical Centre Rech Metallurgique
Priority to LU81301A priority Critical patent/LU81301A1/en
Priority to BE6/47167A priority patent/BE883422A/en
Publication of LU81301A1 publication Critical patent/LU81301A1/en

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
    • 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
    • B32B3/26—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 a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/30—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 a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
    • 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
    • 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
    • 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
    • B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
    • 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
    • G10K11/162—Selection of materials
    • G10K11/168—Plural layers of different materials, e.g. sandwiches
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/538—Roughness
    • 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
    • B32B2509/00—Household appliances
    • 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
    • B32B2605/006—Transparent parts other than made from inorganic glass, e.g. polycarbonate glazings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Description

--—V......=jj>-pj 4)RAND-DUCHÊ DE LUXEMBOURG--— V ...... = dd> -pd 4) RAND-DUCHÊ DE LUXEMBOURG

Brevet N°.............¾........|......O......VJ * 1 du ..................... Monsieur le Ministre liâpfSb de l’Économie Nationale et des Classes MoyennesPatent No ............. ¾ ........ | ...... O ...... VJ * 1 of ....... .............. Monsieur the Minister liâpfSb of the National Economy and the Middle Classes

Titre délivré : ....................................... nV& kjï éfUmj Service de la Propriété IndustrielleTitle issued: ....................................... nV & kjï éfUmj Industrial Property Service

LUXEMBOURGLUXEMBOURG

—ii-——-Demande de Brevet d’invention mi ?o............................................................................................................................................................................—Ii -——- Request for an Invention Patent mi? O ................................... .................................................. .................................................. .....................................

I. RequêteI. Request

CENTRE DE RECHERCHES METALLURGIQUES - CENIRUM VOOR RESEARCH IN DE METALLURGEMETALLURGICAL RESEARCH CENTER - CENIRUM VOOR RESEARCH IN DE METALLURGE

Ässdclätiön sans but lucratif - Vereniging ronder winstoogmerk, 47 r. Montoyer, -1040-Brux:ellesv"Bclgiqti«................................................................................................................................................................................................Ässdclätiön non-profit - Vereniging ronder winstoogmerk, 47 r. Montoyer, -1040-Brux: Ellesv "Bclgiqti" ....................................... .................................................. .................................................. .................................................. ...

••représentée par E> Meyere A EïFreylinger ï lngïcon»; en propr.indi i A^ · rue.......(2) ...du.... Cimet iàg.e.,....Luxembiurg.,. agissant en ...qualité, de-mandataires........................................................- oo dépose. ce vingt-deux mai mil neuf cent soixante dix neuf.........................(3) à.....Z,™...................heures, au Ministère de l’Économie Nationale et des Classes Moyennes, à Luxembourg : 1. la présente requête pour l’obtention d’un brevet d’invention concernant : ^ Procède pour fabriquer des tôles composites soudables" S* .............................................................................. .................................*................................................................................................*............................................—•• represented by E> Meyere A EïFreylinger ï lngïcon ”; en propr.indi i A ^ · rue ....... (2) ... du .... Cimet iàg.e., .... Luxembiurg.,. acting in ... capacity, of-proxies ........................................ ................- oo deposits. this twenty-two may one thousand nine hundred and seventy nine ......................... (3) to ..... Z, ™ .. ................. hours, at the Ministry of National Economy and the Middle Classes, in Luxembourg: 1. this request for obtaining a patent for invention concerning: ^ Proceeds to manufacture weldable composite sheets "S * ..................................... ......................................... ......... ........................ * ......................... .................................................. ..................... * ............................ ................—

Jean rtel “v“talls) 651 <s“‘); 2. la délégation de pouvoir, datée de .........—.................... le ...........................Jean rtel “v“ talls) 651 <s “‘); 2. the delegation of power, dated ......... — .................... on .......... .................

S. la description en langue............................................... de l’invention en deux exemplaires ; 4................................. planches de dessin, en deux exemplaires ; 5. la quittance des taxes versées au Bureau de l’Enregistrement à Luxembourg, vinc-t-deux msi mil neuf cent soixante dix neuf le ..................................................................................................................................................................................................................................................................Description in language ............................................ ... of the invention in two copies; 4 ................................. drawing boards, in two copies; 5. the receipt of taxes paid to the Luxembourg Registration Office, vinc-deux msi nineteen hundred seventy nine on ..................... .................................................. .................................................. .................................................. .................................................. .....................................

revendique pour la susdite demande de brevet la priorité d’une (des) demandefs) de (6) ...............................................................................................dêposée(s> en (7)..............................................................................—....................................................claims for the above patent application the priority of one (or more) of (6) ............................. .................................................. ................ filed (s> in (7) .......................... .................................................. .. — ............................................... .....

le ..........................................................................................................................................................................................................................-....................................................(8) *, * au nom de ................................................................................................................................................................................................................................................... (9) élit qomïcile pour lui (elle) et. si désigné- pour son mandataire, à Luxembourg .......................................the ................................................. .................................................. .................................................. .................................................. ...................-.............................. ...................... (8) *, * on behalf of ................... .................................................. .................................................. .................................................. .................................................. ........................ (9) elects qomïcile for him (her) and. if appointed for its representative, in Luxembourg .......................................

46 rue <ra~€nasttire, Luxembourg (l0) sollicite la délivrance d'un brevet d’invention pour l’objet décrit et représenté dans les annexes 1 . dix-huit susmentionnées, — avec ajournement de cette délivrance a»............................................ mois.46 rue <ra ~ € nasttire, Luxembourg (l0) is requesting the grant of a patent for the subject described and shown in appendices 1. eighteen mentioned above, - with postponement of this issue to »..................................... ....... months.

'le. des mandats!res ........................................'the. mandates! res ........................................

v ..'.'s·®'*"'“ .j··*' U f II. Procès-verbal de Dépôtv .. '.' s · ® '* "'“ .j ·· * 'U f II. Statement of Deposit

La susdite demande de brevet d’invention a été déposée au Ministère de l’Économie Nationale et des Classes Moyennes, Service de la Propriété Industrielle à Luxembourg, en date du : 22 mai 1979 __ oo Pr. le Ministre i 15 ’· ’^Ue l’Économie Nationale et des Classes Moyennes, BUß ...................................... (11¾¾¾ ?¥ vdm ____________________________mMJL_______________th____The above application for a patent for invention has been filed with the Ministry of National Economy and the Middle Classes, Industrial Property Service in Luxembourg, dated: May 22, 1979 __ oo Pr. Le Minister i 15 '·' ^ In the National Economy and the Middle Classes, BUß ...................................... ( 11¾¾¾? ¥ vdm ____________________________mMJL_______________th____

#- "V# - "V

C 1958/7905.C 1958/7905.

CENTRE DE RECHERCHES METALLURGIQUES -CENTRUM V00R RESEARCH IN DE METALLURGIE,METALLURGICAL RESEARCH CENTER -CENTRUM V00R RESEARCH IN DE METALLURGIE,

Association sans but lucratif - Vereniqing zonder winstoogmerKNon-profitmaking organization - Vereniqing zonder winstoogmerK

à BRUXELLES, (Belgique) .in BRUXELLES, (Belgium).

Procédé pour fabriquer des tôles composites soudables. s-Method for manufacturing weldable composite sheets. s-

La présente invention est relative à des tôles ?r composites soudables particulièrement intéressantes pour leur aptitude à absorber le bruit,The present invention relates to weldable composite sheets which are particularly advantageous for their ability to absorb noise,

La lutte contre le bruit est une ces préoccupations importantes du monde industriel et notamment du secteur des fabrications métalliques, avec une mention spéciale pour la construction automobile et l'électroménager qui sont de grands consommateurs de tôles en acier.The fight against noise is one of these important concerns of the industrial world and in particular of the metal manufacturing sector, with a special mention for the automobile construction and the household appliances which are big consumers of steel sheets.

«r ·*- 2.- ])rins cette perspective, les recherches entreprises se sont orient uh vers un matériau constitué d’au moins deux tôles d'acier assemhîéoo Par une couche intermédiaire de matière à la fois adhésive et acoustiquement isolante. Les tôles composites (tôle sandwich) ainsi fabriquées permettent une isolation acoustique efficace et la réalisation d'emboutis industriels."R · * - 2.-]) In this perspective, the research undertaken is directed towards a material made up of at least two sheets of steel, assemhîéoo By an intermediate layer of material which is both adhesive and acoustically insulating. The composite sheets (sandwich sheet) thus produced allow effective acoustic insulation and the production of industrial stampings.

Toutefois, de telles tôles composites présentent de sérieuses difficultés d'assemblage, notamment dans le cas du soudage. En particulier, le soudage électrique par points qui est d'application courante dans les productions de masse est rendu im- / possible à CvïUj'e de la présence de la couche intermédiaire dont la matière constitutive est non seulement acoustiquement isolante, mais aussi électriquement isolante dans la plupart des cas.However, such composite sheets present serious assembly difficulties, in particular in the case of welding. In particular, electric spot welding which is of current application in mass productions is made impossible / possible at CvïUj'e of the presence of the intermediate layer whose constituent material is not only acoustically insulating, but also electrically insulating in most of the cases.

La présente invention a pour objet un procédé permettant de remédier à ces difficultés.The present invention relates to a method making it possible to remedy these difficulties.

Le procédé, objet de la présente invention pour fabriquer des ïèlc'S composites soudables est essentiellement caractérisé en ce que l’on procure, à au moins une des deux faces des tôles dest mcos à être en cor,tact avec la couche intermédiaire de matière ad'cs:v: et acoustigueraent isolante qui les assemble, une répartit‘.cv cc préférence régulière d’aspérités superficielles ayant une hauteur du meme ordre de grandeur que celui de l'épais-qg la cito couche intermediaire.The process which is the subject of the present invention for manufacturing weldable composite parts is essentially characterized in that at least one of the two faces of the sheets intended to be made horn is provided with the intermediate layer of material ad ' cs: v: and insulating acoustigueraent which assembles them, a distribut'.cv cc regular preference of surface roughness having a height of the same order of magnitude as that of the thick-qg the cito intermediate layer.

Suivant une modalité de l'invention, l'épaisseur de la couche ovmédisire et la hauteur des aspérités superficielles sont cum’uvises entre 0,02 nun et 0,20 mm d’après la composition de 1. - a. ière constitutive de la dite couche intermédiaire.According to one embodiment of the invention, the thickness of the ovarian layer and the height of the surface roughness are cumulated between 0.02 nun and 0.20 mm according to the composition of 1. - a. constituent of said intermediate layer.

Suivant une autre modalité de l’invention, la dimension de lu des aspérités superficielles garnissant la face de la tôle o ovioct avec la couche intermédiaire est comprise entre 0,1 ~r o. d 5 ητ.· de façon à assurer un relief assez fin et ainsi éviter d-u '-rs traces de ces aspérités n’apparaissent sur la face extO' 0.:-.0 à la suite de l'emboutissage.According to another embodiment of the invention, the dimension of the surface roughness lining the face of the sheet o ovioct with the intermediate layer is between 0.1 ~ r o. d 5 ητ. · so as to ensure a fairly fine relief and thus avoid d-u '-rs traces of these asperities do not appear on the extO' 0.:-.0 face following the stamping.

i ί * s ι 3.-i ί * s ι 3.-

Dans le cas où les deux faces en contact avec la couche intermédiaire sont porteuses d'aspérités, il est possible d'avoir des reliefs différents pour chacune de ces deux faces.In the case where the two faces in contact with the intermediate layer are asperities, it is possible to have different reliefs for each of these two faces.

On procure avantageusement, suivant l'invention, les aspérités superficielles aux tôles au moyen d'un laminage approprié mettant en oeuvre au moins un cylindre de rugosité élevée.Advantageously is provided, according to the invention, the surface roughness to the sheets by means of an appropriate rolling using at least one cylinder of high roughness.

Ce laminage peut consister en un laminage à froid, en un skin-pass ou encore en un laminage spécial. Le ou les cylindres peuvent être préparés par un grenaillage spécial, par usinage,.par rectification, ; par électroérosion, etc..., cette énumération n'étant pas limitative I f Dans la mesure, où on peut disposer d'un laser de puissance suffi sante, on peut l'utiliser dans cette application.This lamination can consist of a cold lamination, a skin-pass or even a special lamination. The cylinder (s) can be prepared by special shot blasting, by machining,. By rectification,; by EDM, etc ..., this list not being limiting I f Insofar as it is possible to have a laser of sufficient power, it can be used in this application.

I La présente invention a également pour objet une î tôle composite soudable obtenue par la mise en oeuvre du procédé décrit ci-dessus.The present invention also relates to a weldable composite sheet obtained by implementing the method described above.

\ d, ! iJl i' ï it \\ d,! iJl i 'ï it \

Claims (6)

1. Procédé pour fabriquer des tôles composites soudables, caractérisé en ce que l'on procure à au moins une des deux faces des tôles destinées à être en contact avec la couche intermédiaire de matière adhésive et acoustiquement isolante qui les assemble, des aspérités superficielles ayant une hauteur du „* même ordre de grandeur que celui de l'épaisseur de la dite couche intermédiaire.1. Method for manufacturing weldable composite sheets, characterized in that at least one of the two faces is provided with sheets intended to be in contact with the intermediate layer of adhesive and acoustically insulating material which assembles them, surface roughness having a height of the „* same order of magnitude as that of the thickness of said intermediate layer. 2. Procédé suivant la revendication 1, caractérisé en ce que l'on procure aux aspérités superficielles une répartition régulière.2. Method according to claim 1, characterized in that the surface roughness is provided with a regular distribution. 3. Procédé suivant l'une ou l'autre des revendications 1 et 2, caractérisé en ce que l'épaisseur de la couche intermédiaire et la hauteur des aspérités superficielles sont comprises entre 0,02 mm et 0,20 mm, suivant la composition de la matière constitutive de la dite couche intermédiaire3. Method according to either of Claims 1 and 2, characterized in that the thickness of the intermediate layer and the height of the surface roughness are between 0.02 mm and 0.20 mm, depending on the composition of the constituent material of said intermediate layer 4. Procédé suivant la revendication 3, caractérisé en ce que la dimension de la base des aspérités superficielles garnissant la face de la tôle en contact avec la couche ί. intermédiaire est comprise entre 0,1 mm et 0,5 mm.4. Method according to claim 3, characterized in that the dimension of the base of the surface roughness lining the face of the sheet in contact with the layer ί. intermediate is between 0.1 mm and 0.5 mm. 4.-4.- 5. Procédé suivant l'une ou l'autre ces revendications 1 à 4, caractérisé en ce que l'on procure les aspérités superficielles aux tôles, au moyen d'un laminage approprié mettant en oeuvre au moins un cylindre de rugosité élevée.5. Method according to either of these claims 1 to 4, characterized in that one provides the surface roughness to the sheets, by means of an appropriate rolling using at least one cylinder of high roughness. 6. Tôle composite soucable obtenue par la mise en oeuvre du procédé suivant l'une ou l'autre des revendications 1 à 5. . _6. sizable composite sheet obtained by the implementation of the method according to either of claims 1 to 5.. _
LU81301A 1979-05-22 1979-05-22 PROCESS FOR MANUFACTURING WELDED COMPOSITE SHEETS LU81301A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
LU81301A LU81301A1 (en) 1979-05-22 1979-05-22 PROCESS FOR MANUFACTURING WELDED COMPOSITE SHEETS
BE6/47167A BE883422A (en) 1979-05-22 1980-05-21 PROCESS FOR MANUFACTURING WELDED COMPOSITE SHEETS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU81301 1979-05-22
LU81301A LU81301A1 (en) 1979-05-22 1979-05-22 PROCESS FOR MANUFACTURING WELDED COMPOSITE SHEETS

Publications (1)

Publication Number Publication Date
LU81301A1 true LU81301A1 (en) 1980-12-16

Family

ID=19729164

Family Applications (1)

Application Number Title Priority Date Filing Date
LU81301A LU81301A1 (en) 1979-05-22 1979-05-22 PROCESS FOR MANUFACTURING WELDED COMPOSITE SHEETS

Country Status (2)

Country Link
BE (1) BE883422A (en)
LU (1) LU81301A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20010422A1 (en) * 2001-07-16 2003-01-16 Sandro Fortunati MULTI-LAYER METALLIC SHEET WITH SOUND ABSORBING PROPERTIES.

Also Published As

Publication number Publication date
BE883422A (en) 1980-09-15

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