WO2013113867A1 - Procédé de fabrication d'une structure multicouches composée de différents métaux et alliages - Google Patents

Procédé de fabrication d'une structure multicouches composée de différents métaux et alliages Download PDF

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Publication number
WO2013113867A1
WO2013113867A1 PCT/EP2013/052020 EP2013052020W WO2013113867A1 WO 2013113867 A1 WO2013113867 A1 WO 2013113867A1 EP 2013052020 W EP2013052020 W EP 2013052020W WO 2013113867 A1 WO2013113867 A1 WO 2013113867A1
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WO
WIPO (PCT)
Prior art keywords
aluminium
layers
multilayer structure
layer
oxide
Prior art date
Application number
PCT/EP2013/052020
Other languages
English (en)
Inventor
Ib Kongstad
Original Assignee
Bang & Olufsen A/S
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 Bang & Olufsen A/S filed Critical Bang & Olufsen A/S
Publication of WO2013113867A1 publication Critical patent/WO2013113867A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C3/00—Processes, not specifically provided for elsewhere, for producing ornamental structures
    • B44C3/005—Removing selectively parts of at least the upper layer of a multi-layer article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/355—Texturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/40—Removing material taking account of the properties of the material involved
    • 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
    • B32B15/016—Layered products comprising a layer of metal all layers being exclusively metallic all layers being formed of aluminium or aluminium alloys
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/16—Pretreatment, e.g. desmutting
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/243—Chemical after-treatment using organic dyestuffs
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
    • C25D11/02—Anodisation
    • C25D11/04—Anodisation of aluminium or alloys based thereon
    • C25D11/18—After-treatment, e.g. pore-sealing
    • C25D11/24—Chemical after-treatment
    • C25D11/246—Chemical after-treatment for sealing layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/16—Composite materials, e.g. fibre reinforced
    • B23K2103/166—Multilayered materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26

Definitions

  • the present invention relates to a method of manufacturing a multilayer structure of differen metals and alloys to obtain a Mokume Gane effect on at least one surface of said structure a ⁇ well as a multilayer structure comprising alternating layers of a first layer of aluminium or of an alloy thereof and at least one further layer different from said first layer, said structure having a Mokume Gane effect on at least one surface of said structure. More specifically the present invention discloses a method for decorative enhancement of a surface of an aluminium-containing multilayer structure consisting of multiple layers of different metals or alloys in order to create a Mokume Gane (MG) structure in the surface thereof.
  • MG Mokume Gane
  • the Mokume Gane effect refers to an effect obtained by a mixed-metal laminate with distinctive layered patterns and was originally developed in 17 th -century Japan.
  • KR2006013211 discloses a method for manufacturing a high-strength Cu sheet by continuously and repeatedly applying an accumulative roll-bonding process on layered Cu sheets.
  • US 2007/0275263 Al discloses cookware having improved uniform heat transfer over the entire cross section thereof, the cookware formed from a multilayered composite metal having a layer of stainless steel roll bonded at or near the core of the composite.
  • the outermost layer may be a layer of roll bonded aluminium preferably having an anodized oute surface for scratch resistance and improved appearance.
  • Another object of the embodiments of the invention is to provide a multilayer structure having an enhanced visual appearance.
  • the present invention relates to a method of manufacturing a multilayer structure of different metals and alloys to obtain a Mokume Gane effect on at least one surface of said structure, the method comprising: i) providing a multilayer structure of alternating layers of a first type of layer of aluminium or an alloy thereof and at least one further type of layer different from said first type of layer, said structure having a first and a second surface ii) Processing to provide depressions and/or deformations on parts of at least one surface of said structure; iii) Optionally grinding and/or polishing of at least one surface of the structure; iv) Optionally etching at least one surface of the structure; v) Anodizing said at least one surface of the structure to obtain a Mokume Gane effect on said surface; and vi) Optionally performing one or more of the steps of dyeing and/or sealing of the structure.
  • the present invention relates to a multilayer structure of a first type of layer of aluminium or an alloy thereof and at least one further type of layer different from said first type of layer; said structure comprising alternating layers of a) a first type of layer of aluminium or an alloy of aluminium and at least one alloying metal selected from the group consisting of copper, iron, manganese, magnesium, silicon, zirconium, titanium, zinc, chromium, cerium, yttrium, and molybdenum, and b) at least one further type of layer of a material selected from the group consisting of: i) an alloy of aluminium and at least one alloying metal selected from the group consisting of copper, iron, manganese, magnesium, silicon, zirconium, titanium, zinc, chromium, cerium, yttrium, and molybdenum; and ii) aluminium or an alloy thereof comprising discrete inclusions of a material different from aluminium; or iii) a combination of i) and
  • Fig. 1 illustrates a multilayer structure comprising four layers
  • Fig. 2 illustrates said multilayer structure after forming of depressions
  • Fig. 3 illustrates a top view of the multilayer structure after polishing, etching and anodizing to obtain a Mokume Gane effect
  • Fig. 4 illustrates another multilayer structure comprising ten layers, in which both surfaces of the structure have been deformed
  • Fig. 5 illustrates a top view of the multilayer structure after polishing, etching and anodizing to obtain a Mokume Gane effect.
  • the Mokume Gane effect refers to an effect obtained by a mixed-metal laminate with distinctive layered patterns and colours and was originally developed in 17 th -century Japan.
  • an alloy of aluminium and at least one alloying metal is used to describe an alloy of aluminium and one or more further metals, such as copper, iron, manganese, magnesium, silicon, zirconium, titanium, zinc, chromium, cerium, yttrium, and molybdenum. Suitable alloys comprise about 80-99 % of Al and about 1-20 % of one or more alloying metals selected from the above.
  • type of layer means a layer having a particular composition.
  • a firs type of layer of aluminium or an alloy thereof and at least one further type of layer different from said first type of layer means that the composition of the first layer is different from the composition of the further layer.
  • An example thereof is when the first type of layer is one particular aluminium alloy and the second type of layer is another alloy of aluminium.
  • anodising means an electrolytic passivation process by which a part to be treated forms the anode electrode of an electrical circuit. An anodised aluminium layer may thus be obtained by passing a direct current through an electrolytic solution with the aluminium object serving as the anode.
  • said multilayer structure comprises 2-6 different types of layers, such as 2, 3, or 4 different types of layers, preferably 2 or 3 different types of layers.
  • said multilayer structure is prepared by an Accumulative Roll Bonding (ARB) process.
  • ARB Accumulative Roll Bonding
  • the Accumulative Roll Bonding (ARB) process is applied on two or more layers or plates of aluminium or an alloy of aluminium and at least one alloying metal to obtain a compound structure, wherein the structure is subsequently processed by anodizing and one or more optional additional steps to obtain the decorative Mokume Gane effect or wood structure.
  • the Accumulative Roll Bonding (ARB) process is performei as a cold rolling process. Standard and well known processes are applied, processes like Accumulative Roll Bonding (ARB) is normally a cold rolling process if the two alloys are of similar type with respect to strength and hardening effect at deformation.
  • the Accumulative Roll Bonding (ARB) process is performed as a hot rolling process at a temperature in the range 100-500 °C.
  • ARB Accumulative Roll Bonding
  • the method for decorative anodizing of aluminium in a multilayer structure that consists of a multilayer of different types of alloys in order to create a Mokume Gane structure in the surface comprises creating a multilayer structure by Accumulative Roll Bonding (ARB), wherein said multilayer structure is built-up by two or more different alloys, wherein the multilayer structure is a laminate that consists of two or more layers of aluminium or an aluminium alloy in between which are organized one or more layers of another type or another alloy that behaves differently from said first layer when etching, anodizing and dyeing the multilayer structure.
  • ARB Accumulative Roll Bonding
  • One or more of the following successive processing steps may be applied on the laminated structure, the processing being: pressure to give the structure a physical form; depressing or deformation on selected points/areas on the surface to give structuring of the pattern of the Mokume Gane effect; grinding and polishing to expose the layers;
  • etching, anodizing and dyeing to expose the layer structure to obtain the Mokume Gane effect on the surface of the structure.
  • the order of the individual steps may vary.
  • said multilayer structure comprises at least 2 layers, such as 4-10,000 layers, such as 4-1,000 layers, such as 8-128 layers, preferably 16-32 layers or such as 128-2048 layers, preferably 256-1024 layers.
  • the laminate consists of approximately 20 layers of aluminium or an alloy thereof.
  • the first layer is the same as layers 3, 5, 7, 9 etc. and in- between are layers 2, 4, 6, 8, 10 etc. of another and different alloy that behave differently than layers 1, 3, 5, 7, 9 etc. after one or more of the steps of etching, anodizing and dyeing.
  • the two or more types of aluminium alloys that may make up the first and further layer(s), respectively must be different visually after one or more of the steps of etching, anodizing and dyeing in a way that develops the layer structure either by different gloss or different colour.
  • the two or more types of layers can also be etched in different ways in order to create a relief structure that could be sensed by touching.
  • said further type of layer is of aluminium or an alloy thereof comprising discrete inclusions of a material different from aluminium.
  • the multilayer structure comprises a first type of aluminium layer, a further type of layer which is of aluminium or an alloy thereof comprising discrete inclusions of a material different from aluminium, and a third type of aluminium laye that behaves differently from said first layer when etching, anodizing and dyeing the multilayer structure, and wherein each of said further layers may be present in any order in the multilayer structure.
  • said inclusions are selected from the group consisting of metal particles, metal oxide particles and pigments.
  • inclusions of particles or pigments may be made to obtain a radiation scattering surface finish on an object as disclosed in more detail in applicant's copending patent application WO 2012/076467 A2, the disclosure of which is incorporated herein in its entirety.
  • the discrete inclusions of a material different from aluminium may be converted to discrete radiation scattering elements through anodisation oi be oxidised to metal oxides.
  • said pigments are selected from the group consisting of inorganic and organic pigments.
  • said pigments are selected from the group consisting of titanium dioxide, tin oxide, zinc oxide, antimony oxide, barium sulphate, silicon dioxide, copper oxide, iron oxide, manganese dioxide, magnesium oxide, zirconium dioxide, chromiun oxide, cerium dioxide, yttrium oxide, and molybdenum oxide.
  • said pigments are organic or biological pigments. Non- limiting examples thereof include Carbon Black, Phthalo Blue, Aniline dye, Mother of Pearl, Red Carmine, Magenta and Melanin.
  • At least one surface layer of the multilayer structure according to the invention may be activated by means of an energy effect that changes the function of the surface layer.
  • a non-limiting example thereof is a laser beam to make graphical patterns in the surface.
  • Such processing may be used to make functional surfaces such as antennas and other communication apparatus.
  • each layer is in the range 0.01-1000 ⁇ , such as 0.1-500 ⁇ , such as 50-500 ⁇ , preferably about 1-100 ⁇ .
  • each layer is 0.05 - 0.5 mm and typically 0.1 mm.
  • the depressions and/or deformations on parts of at least one surface of the multilayer structure are obtained by mechanical processing.
  • the forming and grinding is known as disclosed from the literature by Ian Ferguson, Mokume Gane (Jewellery Handbooks), Publisher: A&C Black (November 29, 2002),ISBN-10:
  • the invention as disclosed may be used in all types of products, items, equipment and apparatus, where there is a demand for a surface with a trendy high quality look which is colorful and decorative.
  • Examples of equipment in aluminium parts with this new Mokume Gane surface structure are but not limited to: consumer electronics, antennas and other communication apparatus, phones, jewellery, watches, control panels in cars and alike.
  • Figure 1 displays an example of a layered structure (1) made of 4 sheets or plates (2, 3, 4, 5). The structure is obtained via the ARB process.
  • Figure 3 displays a top view of the object after the surface has been polished, etched and anodized given the final finish with the MG decorative effect in the selected areas of the surface (2, 3, 4).

Abstract

L'invention concerne un procédé de fabrication d'une structure multicouches composée de différents métaux et alliages permettant d'obtenir un effet Mokumé gané sur au moins une surface de ladite structure ainsi qu'une structure multicouches comprenant des couches alternées composées d'une première couche d'aluminium ou d'un alliage de celui-ci et d'au moins une autre couche différente de ladite première couche, ladite structure présentant un effet Mokumé gané sur au moins l'une de ses surfaces.
PCT/EP2013/052020 2012-02-01 2013-02-01 Procédé de fabrication d'une structure multicouches composée de différents métaux et alliages WO2013113867A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA201200088 2012-02-01
DKPA201200088 2012-02-01

Publications (1)

Publication Number Publication Date
WO2013113867A1 true WO2013113867A1 (fr) 2013-08-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108085533A (zh) * 2017-12-14 2018-05-29 安徽工程大学 一种新型木纹金及其制作方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB821115A (en) * 1956-11-20 1959-09-30 Fromson H A Ferrous metal sheet clad with wrought aluminium having an anodized aluminium oxide coating and the method for its production
US3248185A (en) * 1962-05-21 1966-04-26 Leach & Garner Co Patterned jewelers' stock
US3465419A (en) * 1964-05-22 1969-09-09 Engelhard Ind Inc Method of making decorative metal stock
US3865560A (en) * 1969-04-16 1975-02-11 Cegedur Gp Process for manufacturing decorative products of aluminum and alloys of aluminum
GB1458997A (en) * 1973-09-12 1976-12-22 Teikoku Piston Ring Co Ltd Metal composite materials
KR20060013211A (ko) 2004-08-06 2006-02-09 한국기계연구원 반복겹침접합압연공정에 의한 고강도 구리판재 제조방법
US20070275263A1 (en) 2002-06-28 2007-11-29 All-Clad Metalcrafters Llc Bonded metal components having uniform thermal conductivity characteristics and method of making same
WO2009079700A1 (fr) * 2007-12-20 2009-07-02 University Of Wollongong Procédé de colaminage
US20100227192A1 (en) * 2009-03-09 2010-09-09 The Hong Kong Polytechnic University Composite steel plate and method of making a composite steel plate
WO2012076467A2 (fr) 2010-12-06 2012-06-14 Bang & Olufsen A/S Procédé permettant d'obtenir un fini de surface de diffusion des rayonnements sur un objet

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB821115A (en) * 1956-11-20 1959-09-30 Fromson H A Ferrous metal sheet clad with wrought aluminium having an anodized aluminium oxide coating and the method for its production
US3248185A (en) * 1962-05-21 1966-04-26 Leach & Garner Co Patterned jewelers' stock
US3465419A (en) * 1964-05-22 1969-09-09 Engelhard Ind Inc Method of making decorative metal stock
US3865560A (en) * 1969-04-16 1975-02-11 Cegedur Gp Process for manufacturing decorative products of aluminum and alloys of aluminum
GB1458997A (en) * 1973-09-12 1976-12-22 Teikoku Piston Ring Co Ltd Metal composite materials
US20070275263A1 (en) 2002-06-28 2007-11-29 All-Clad Metalcrafters Llc Bonded metal components having uniform thermal conductivity characteristics and method of making same
KR20060013211A (ko) 2004-08-06 2006-02-09 한국기계연구원 반복겹침접합압연공정에 의한 고강도 구리판재 제조방법
WO2009079700A1 (fr) * 2007-12-20 2009-07-02 University Of Wollongong Procédé de colaminage
US20100227192A1 (en) * 2009-03-09 2010-09-09 The Hong Kong Polytechnic University Composite steel plate and method of making a composite steel plate
WO2012076467A2 (fr) 2010-12-06 2012-06-14 Bang & Olufsen A/S Procédé permettant d'obtenir un fini de surface de diffusion des rayonnements sur un objet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IAN FERGUSON; MOKUME GANE: "Jewellery Handbooks", 29 November 2002, PUBLISHER: A&C BLACK

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108085533A (zh) * 2017-12-14 2018-05-29 安徽工程大学 一种新型木纹金及其制作方法

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