EP1541717A2 - Procédé de fabrication de composants en métaux légers recouverts qui sont disposés dans un courant de fluide turbulent - Google Patents

Procédé de fabrication de composants en métaux légers recouverts qui sont disposés dans un courant de fluide turbulent Download PDF

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Publication number
EP1541717A2
EP1541717A2 EP20040026409 EP04026409A EP1541717A2 EP 1541717 A2 EP1541717 A2 EP 1541717A2 EP 20040026409 EP20040026409 EP 20040026409 EP 04026409 A EP04026409 A EP 04026409A EP 1541717 A2 EP1541717 A2 EP 1541717A2
Authority
EP
European Patent Office
Prior art keywords
blank
layer
coating
blade
produced
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Withdrawn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
EP20040026409
Other languages
German (de)
English (en)
Inventor
Peter Fledersbacher
Erwin Schmidt
Siegfried Sumser
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1541717A2 publication Critical patent/EP1541717A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a method for the coating of Alloy blanks and the production of turbulent flowed around light metal components from this blank after the Preamble of the main claims 1 and 6.
  • Turbulent flow around light metal components are used as wear-resistant and high temperature resistant components in the Machine, apparatus, engine and turbine construction, in particular for passenger car and commercial vehicle engines with exhaust gas turbochargers (ATL).
  • ATL exhaust gas turbochargers
  • compressor wheels of Exhaust gas turbochargers currently made of aluminum standard alloys manufactured by investment casting process.
  • the strength limits apply Centrifugal and vibration stresses at ATL (Exhaust gas turbocharger) -Verdichtung wheels with cost-effective Aluminum standard alloys can now be achieved.
  • ATL Verdicherssel is e.g. a material change to titanium possible.
  • ATL compressor wheels results Titanium by NC milling to a cost doubling of the Exhaust gas turbocharger. It is therefore cheaper that Investment casting process for blanks of the Compressor wheel made of aluminum standard alloys maintain and appropriate coating materials for the Blanks of the ATL compressor wheels to search.
  • a process for the production of metal-ceramic composite materials in which an oxide-containing preform is reacted with liquid aluminum or an aluminum alloy in such a way that a material containing Al 2 O 3 and aluminide (eg TiAl) is produced is described in DE 196 05 858 A1.
  • the preform is a green body or a pre-sintered or plasma-sprayed precursor.
  • the green body or precursor is, for example, layered on a base body. Subsequently, the green body or precursor is so long immersed in liquid aluminum or in a liquid aluminum alloy until it is either completely or only in the surface region at least partially converted to Al 2 O 3 and aluminides.
  • the preform is infiltrated under vacuum, atmospheric pressure or gas pressure with liquid aluminum or a liquid aluminum alloy.
  • a post-treatment in eg a heated, oxygen-containing atmosphere, a richer Al 2 O 3 cover layer is formed.
  • the molded body is used as a wear-resistant and high-temperature resistant component, inter alia, in turbine and engine construction.
  • a method of making oxide ceramic fluoropolymer layers on light metal components of e.g. Aluminum is in DE 42 39 391 A1.
  • the light metal components are u.a. Rotors of pumps with high speeds, e.g. For Turbocharger.
  • the Oxide ceramic layers have layer thicknesses between 40 to 150 ⁇ m.
  • the invention has for its object to provide a method for Coating of a light metal blank and a process for the production of turbulent flows around light metal components to specify from this blank, with the wear-resistant and high temperature resistant components for Turbulent flow around light metal components cost-effective can be produced.
  • the object is achieved by the features of Main claims solved.
  • the coating of a blank out a light metal base material is by means of anodic Oxidation is performed and it becomes an oxide-ceramic layer deposited on the blank, the blank on the Coating is biased to pressure.
  • ATL compressor wheels will consist of the blank Base body and blading made of a light metal base material manufactured, preprocessed and / or sections finished. Subsequently, on the processed blank produces an oxide germanic layer.
  • Another advantage is that the ductile Aluminum wheel center of the compressor by the strong increased heat transfer resistance of the oxide ceramic Layer is protected from strong temperature fluctuations. As a result, the stress critical points in the Bore area of the blank in non-stationary operations exposed to lower material temperatures.
  • the batches are processed Blanks on the anode side in symmetrical arrangement put together and in an acid bath with a suitable cathode subjected to the oxidation process. It is about the selected process parameters the temporal layer growth regulated such that different layer thicknesses for certain parts of the respective blanks are produced.
  • the Layer thicknesses of the individual blanks are during the Coating measured simultaneously to the one to be realized different layer thicknesses of the coating of the blank manufacture.
  • a DC cathode acid bath is shown.
  • the cathode 1 is made of graphite, for example.
  • the blanks of the compressor wheels consisting of a base body and the blading, by anodic oxidation with an Al 2 O 3 layer
  • the blanks of the compressor wheels 2 are immersed as an anode 3 in an acid bath 4.
  • the aluminum ions produced by the flow of current combine with the oxygen (O) ions attracted from the acid bath to form the desired oxide-ceramic Al 2 O 3 layer.
  • the layer thickness of the Al 2 O 3 layer is partly produced approximately halfway through the diffusion of oxygen ions into the blank and the other half as a coating layer on the surface of the blank.
  • a total layer thickness of Al 2 O 3 of, for example, more than 0.2 mm is deposited.
  • the layer thickness of the Al 2 O 3 layer is greater than 10% of the total thickness of the blade 8 in the outer contour region 7, in particular in the outlet region 5 of the blade with over 30% of the overall blade thickness and in the entry-side hub contour region 6 of the blade Total bucket thickness deposited.
  • the coating will be in another Process step the batches of processed blanks assembled on the anode side in a symmetrical arrangement and in the acid bath with a e.g. a graphite cathode the Subjected to oxidation process.
  • About the elected Process parameter is the temporal layer growth in such a way regulated that different layer thicknesses for certain Parts of the respective blanks are produced.
  • the Layer thicknesses of the individual blanks are during the Coating measured simultaneously to the one to be realized different layer thicknesses of the coating of the blank manufacture.
  • the manufactured compressor wheel is then replaced e.g. in rotor construction of the Turbocharger and for the overall balancing of the compressor and Turbine wheel used in the bandage.
  • the invention is not limited to the specified Embodiment limited.
  • the coated light metal components as wear-resistant and High temperature resistant components in machine, apparatus and usable for other turbine construction.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20040026409 2003-11-22 2004-11-06 Procédé de fabrication de composants en métaux légers recouverts qui sont disposés dans un courant de fluide turbulent Withdrawn EP1541717A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10354648 2003-11-22
DE2003154648 DE10354648A1 (de) 2003-11-22 2003-11-22 Verfahren zur Herstellung von beschichteten turbulent umströmten Leichtmetall-Bauteilen

Publications (1)

Publication Number Publication Date
EP1541717A2 true EP1541717A2 (fr) 2005-06-15

Family

ID=34485236

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040026409 Withdrawn EP1541717A2 (fr) 2003-11-22 2004-11-06 Procédé de fabrication de composants en métaux légers recouverts qui sont disposés dans un courant de fluide turbulent

Country Status (2)

Country Link
EP (1) EP1541717A2 (fr)
DE (1) DE10354648A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008043539A1 (fr) * 2006-10-12 2008-04-17 Man Diesel Se Compresseur pour un turbocompresseur à suralimentation et son procédé de refroidissement
WO2010102609A1 (fr) * 2009-03-12 2010-09-16 Mtu Aero Engines Gmbh Procédé de fabrication d'un revêtement abrasif et pièce pour une turbomachine.
WO2010149462A1 (fr) * 2009-06-22 2010-12-29 Continental Automotive Gmbh Procédé de production d'un rotor de turbine pour un turbocompresseur avec détermination d'un axe de déséquilibre et rectification cylindrique; turbocompresseur à ergot de soudage rectifié cylindriquement
GB2475533A (en) * 2009-11-21 2011-05-25 Cummins Turbo Tech Ltd Compressor wheel
GB2531980A (en) * 2009-11-21 2016-05-04 Cummins Turbo Tech Ltd Compressor wheel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015212330A1 (de) * 2015-07-01 2017-01-19 Bosch Mahle Turbo Systems Gmbh & Co. Kg Verfahren zum Beschichten eines Laufrades, insbesondere eines Turbinenrads und/oder Verdichterrads, eines Abgasturboladers
DE102015212325A1 (de) * 2015-07-01 2017-01-05 Bosch Mahle Turbo Systems Gmbh & Co. Kg Verfahren zum Herstellen eines Gehäuseteils für eine Turbine eines Abgasturboladers

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008043539A1 (fr) * 2006-10-12 2008-04-17 Man Diesel Se Compresseur pour un turbocompresseur à suralimentation et son procédé de refroidissement
WO2010102609A1 (fr) * 2009-03-12 2010-09-16 Mtu Aero Engines Gmbh Procédé de fabrication d'un revêtement abrasif et pièce pour une turbomachine.
WO2010149462A1 (fr) * 2009-06-22 2010-12-29 Continental Automotive Gmbh Procédé de production d'un rotor de turbine pour un turbocompresseur avec détermination d'un axe de déséquilibre et rectification cylindrique; turbocompresseur à ergot de soudage rectifié cylindriquement
GB2475533A (en) * 2009-11-21 2011-05-25 Cummins Turbo Tech Ltd Compressor wheel
EP2325495A3 (fr) * 2009-11-21 2012-10-31 Cummins Turbo Technologies Limited Roue de compresseur
US9234525B2 (en) 2009-11-21 2016-01-12 Cummins Turbo Technologies Limited Compressor wheel
GB2475533B (en) * 2009-11-21 2016-04-13 Cummins Turbo Tech Ltd Compressor wheel
GB2531980A (en) * 2009-11-21 2016-05-04 Cummins Turbo Tech Ltd Compressor wheel
GB2531980B (en) * 2009-11-21 2016-08-10 Cummins Turbo Tech Ltd Compressor wheel

Also Published As

Publication number Publication date
DE10354648A1 (de) 2005-06-16

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