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EP1127958A2 - Procédé de revêtement d'une surface - Google Patents

Procédé de revêtement d'une surface Download PDF

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Publication number
EP1127958A2
EP1127958A2 EP01102134A EP01102134A EP1127958A2 EP 1127958 A2 EP1127958 A2 EP 1127958A2 EP 01102134 A EP01102134 A EP 01102134A EP 01102134 A EP01102134 A EP 01102134A EP 1127958 A2 EP1127958 A2 EP 1127958A2
Authority
EP
European Patent Office
Prior art keywords
alloy powder
piston
component
laser
cylinder bore
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.)
Granted
Application number
EP01102134A
Other languages
German (de)
English (en)
Other versions
EP1127958B1 (fr
EP1127958A3 (fr
Inventor
Rolf Dipl.-Ing. Heinemann
Thomas Dipl.-Ing. Heider
Klaus Dipl.-Ing. Färber
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.)
Volkswagen AG
Original Assignee
Volkswagen 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7632549&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1127958(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Volkswagen AG filed Critical Volkswagen AG
Publication of EP1127958A2 publication Critical patent/EP1127958A2/fr
Publication of EP1127958A3 publication Critical patent/EP1127958A3/fr
Application granted granted Critical
Publication of EP1127958B1 publication Critical patent/EP1127958B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C24/00—Coating starting from inorganic powder
    • C23C24/08—Coating starting from inorganic powder by application of heat or pressure and heat
    • C23C24/10—Coating starting from inorganic powder by application of heat or pressure and heat with intermediate formation of a liquid phase in the layer

Definitions

  • the invention relates to a method for laser coating a surface, in particular an inner surface of a cylindrical bore of a component, in particular an aluminum cylinder crankcase of an internal combustion engine, wherein a base material of the surface using a laser beam to a local Melted melt pool and at least one component Alloy powder is introduced into the weld pool, according to the preamble of Claim 1.
  • hypoeutectic aluminum-silicon alloys mainly used for cylinder crankcases are unsuitable for the tribological loading of the piston-piston ring-cylinder raceway system due to the low proportion of the wear-resistant silicon phase.
  • Hypereutectic alloys such as the AlSi 7 Cu 4 Mg alloy, have a sufficient proportion of silicon crystallites.
  • This hard, wear-resistant structural component is highlighted by chemical and / or mechanical processing steps compared to the matrix consisting of the aluminum mixed crystal and forms a required wing portion.
  • the castability, the poor machinability and the high cost of this alloy are disadvantageous compared to the hypoeutectic and nearutectic alloys.
  • sub- and near-eutectic alloys are called galvanic Coatings applied directly to the raceways.
  • galvanic Coatings applied directly to the raceways.
  • thermal Spray layers which are also applied directly to the tread. The However, the adhesive strength of these layers is due to a sole micromechanical Insufficient brackets.
  • the present invention is therefore based on the object of a method of to improve the above type in that a laser coating rate increased or a processing time is shortened.
  • the weld pool is formed in this way or the component (s) of the alloy powder is / are selected in such a way that at least one component of the alloy powder is not in the molten bath or is only partially melted, so that this component completely or is at least partially embedded in the solid material in the solid state.
  • the alloy powder consists of one or more components, whereby a component can be completely melted in the molten bath.
  • the base material is expediently melted in such a way that the Alloy powder is alloyed or weld-welded.
  • alloy powder or at least one component of the Alloy powder is preheated before it is introduced into the molten bath Process with lower laser energy or faster, because the Laser beam no longer has the full energy to melt or melt certain proportions of the alloy powder must apply.
  • the method can be carried out with lower laser energy or faster be because the laser beam no longer has the full energy to melt the Base material must apply.
  • the base material becomes a weld pool with a depth of ⁇ 0.2 mm melted.
  • the alloy powder can be single or multi-phase, the Alloy powder can include silicon and AlSi.
  • the alloy powder can too Contain substances that have a suitable excretion, such as iron, form.
  • the alloy powder can hard materials, such as carbides, Include nitrides, borides, or oxides.
  • a wide variety of alloy, dispersion and application structures can be achieved in that a laser focus or melting point is in a predetermined pattern is guided over the inner surface.
  • a laser focal point with a feed rate is expedient ⁇ 4000 mm / min moved.
  • a laser focus is over the surface a cylinder bore of a crankcase for a piston with piston rings for Form a tread for the piston in the cylinder bore such that in the axial direction a predetermined distance between with a laser track width melted areas of the surface, this distance being the same size or greater than a thickness of the piston rings is selected.
  • FIG. 1 schematically illustrates the basic principle of laser surface processing of a base material 10 on a surface 12 by means of a laser beam 14, which in Feed direction 16 is moved.
  • the laser beam 14 melts the base material 10 a molten bath 18, into which a corresponding alloy powder 20 is introduced becomes.
  • the alloy powder 20 is usually in the molten bath 18 melted and forms a matrix together with the base material 10.
  • the matrix is then finally solidified and forms, for example Tribologically suitable surface in the form of a tread on a cylinder wall for a piston in a cylinder crankcase of an internal combustion engine.
  • the alloy powder 20 is composed, for example, of one or more components k 1 , k 2 , .... k n .
  • a high laser coating rate is now achieved by the selection of the suitable components k of the alloy powder 20 and by a suitable determination of the degree of melting of the molten bath 18, at least one component k 1 of the alloy powder 20 not being melted, or only partially, and the base material 10 possibly together with melted components k 2 , ... k n of the alloy powder 20 forms the metallic matrix M of the layer 22 formed in this way.
  • the unmelted component k 1 is embedded in the matrix in the solid state.
  • one or more components of the alloy powder 20 are not melted, or only partially, and further components of the alloy powder 20, which are ideally low-melting or form a low-melting alloy with the base material 10, are completely melted.
  • the energy of the laser beam 14 or the components k of the alloy powder are selected such that the following relations result with respect to the respective melting points T s : T s (k 1 )> T s (G), T s (k 2 ), ... T s (k n ) or T s (k 1 )> T s (G).
  • the component k 1 is embedded in the matrix M in the solid state without ever being melted. Due to the fact that one or more components k 2 ... k n of the alloy powder 20 do not have to be melted or only partially, a smaller amount of energy is necessary. As a result, the feed 16 of the laser surface processing can be increased or the focus on the surface 12 can be increased, so that the coating rate is increased and manufacturing time is reduced, while the laser output power remains the same.
  • the invention proposes the base material 10 and / or at least one component k of the alloy powder 20 preheat, since normally part of the laser power of the laser beam 14 to Heating the base material 10 is required.
  • a typical feed rate 16 of the laser beam 14 on the surface 12 is, for example based on the circumference of a cylindrical bore, 4000 mm / min or more.
  • FIG. 3 illustrates a laser surface treatment of the surface 12 with base material 10 by means of a laser beam 14 with an alloy of an alloy powder with two or n components.
  • the ratios regarding the melting points T s of the unmelted component k 1 of the alloy powder, the base material G 10 and the other components k 2 ... k n are selected analogously, as described above with reference to FIG. 2. Only the laser power is selected such that the weld pool 18 has a greater depth of penetration into the base material 10.
  • the component k 1 24 is in turn embedded in the matrix M in the solid state.
  • This type of laser surface treatment is referred to as alloying, while the processing according to FIG. 2 is usually referred to as cladding.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
EP01102134A 2000-02-26 2001-02-01 Procédé de revêtement d'une surface Expired - Lifetime EP1127958B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10009133A DE10009133A1 (de) 2000-02-26 2000-02-26 Verfahren zum Laserbeschichten einer Oberfläche
DE10009133 2000-02-26

Publications (3)

Publication Number Publication Date
EP1127958A2 true EP1127958A2 (fr) 2001-08-29
EP1127958A3 EP1127958A3 (fr) 2003-04-16
EP1127958B1 EP1127958B1 (fr) 2007-07-18

Family

ID=7632549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01102134A Expired - Lifetime EP1127958B1 (fr) 2000-02-26 2001-02-01 Procédé de revêtement d'une surface

Country Status (3)

Country Link
EP (1) EP1127958B1 (fr)
AT (1) ATE367459T1 (fr)
DE (2) DE10009133A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524061A3 (fr) * 2003-10-08 2005-08-03 General Electric Company Dispositif de revêtement à arc plasma avec une unité locale ayant un anneau avec des passages pour fluides et pröcédés à arc plasma pour réaliser des revêtements à faible teneur en oxydes
WO2008113422A1 (fr) 2007-03-17 2008-09-25 Ks Kolbenschmidt Gmbh Génération d'une partie structure composite à fibres d'un composant par traitement de refusion par laser
CN103364528A (zh) * 2012-04-10 2013-10-23 湖南大学 用试样直接标定检测温度场熔池宽度的激光熔覆过程在线检测方法
US20130299470A1 (en) * 2012-05-10 2013-11-14 Korea Hydro And Nuclear Power Co., Ltd. Method for oxide dispersion strengthening of metallic material using laser
DE102015225813A1 (de) 2015-12-17 2017-06-22 Zf Friedrichshafen Ag Verfahren und Vorrichtung zum Beschichten einer Oberfläche mit Molybdän

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10151716A1 (de) * 2001-10-19 2003-05-08 Bayerische Motoren Werke Ag Legierungspulver zur Beschichtung insbesondere des Ventilsitzbereiches eines Zylinderkopfes einer Brennkraftmaschine sowie Beschichtungsverfahren

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DE1295960B (de) * 1965-02-22 1969-05-22 Gewerk Eisenhuette Westfalia Verfahren und Vorrichtung zum Auftragen von metallischen UEberzugsmaterialien auf Oberflaechen von Werkstuecken
DE3435460A1 (de) * 1984-09-27 1986-04-10 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Verfahren zur herstellung von werkstuecken aus leichtmetall
DE3437983C1 (de) * 1984-10-17 1986-03-20 Eisen- und Stahlwerk Pleissner GmbH, 3420 Herzberg Verfahren zum Aufbringen eines metallischen Schutzüberzuges auf ein metallisches Substrat
JPS6254588A (ja) * 1985-08-30 1987-03-10 Toyota Motor Corp セラミツク粒子分散アルミニウム合金複合層の形成方法
JPS63250450A (ja) * 1987-04-06 1988-10-18 Mitsubishi Heavy Ind Ltd セラミツクス粒子分散表面被覆層の製作方法
DE3813802A1 (de) * 1988-04-23 1989-11-09 Glyco Metall Werke Schichtwerkstoff oder schichtwerkstueck mit einer auf einer traegerschicht angebrachten funktionsschicht, insbesondere gleitschicht mit der struktur einer festen, aber schmelzbaren dispersion
DE3922378A1 (de) * 1989-07-07 1991-01-17 Audi Ag Verfahren zum herstellung verschleissfester oberflaechen an bauteilen aus einer aluminium-silicium-legierung
DE3936479A1 (de) * 1989-11-02 1991-05-08 Guenter Link Verfahren zur erzeugung von schutzschichten auf materialoberflaechen mittels laserstrahlung
US5453329A (en) * 1992-06-08 1995-09-26 Quantum Laser Corporation Method for laser cladding thermally insulated abrasive particles to a substrate, and clad substrate formed thereby
US5359172A (en) * 1992-12-30 1994-10-25 Westinghouse Electric Corporation Direct tube repair by laser welding
CH686187A5 (de) * 1993-03-30 1996-01-31 Alusuisse Lonza Services Ag Metallsubstrate mit laserinduzierter MMC-Beschichtung.
DE19513919C2 (de) * 1995-03-22 2002-04-25 Fraunhofer Ges Forschung Verfahren zur Hochgeschwindigkeitsbeschichtung von Bauteilen und Werkstücken sowie mögliche Vorrichtung zur Hochgeschwindigkeitsbeschichtung von Bauteilen und Werkstücken
DE19519535A1 (de) * 1995-05-27 1996-11-28 Audi Ag Verfahren zum Bearbeiten der Oberflächen von Werkstücken
DE19533960C2 (de) * 1995-09-13 1997-08-28 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Herstellung von metallischen Werkstücken
DE19629332C1 (de) * 1996-07-20 1997-06-05 Deutsche Bahn Ag Verfahren zur Herstellung einlaufverbessernder und verschleißreduzeriender Zylinderlaufflächen
DE19639480A1 (de) * 1996-09-26 1998-04-02 Guenter Hackerodt Verfahren zur Innenbeschichtung von Zylinder-Laufflächen, insbesondere von Aluminium-Laufflächen
DE19643029A1 (de) * 1996-10-18 1998-04-23 Bayerische Motoren Werke Ag Verfahren zum Beschichten eines aus einer Aluminium-Legierung bestehenden Bauteils einer Brennkraftmaschine mit Silicium
DE19817091C2 (de) * 1998-04-17 2001-04-05 Nu Tech Gmbh Verfahren zum Einlegieren von pulverförmigen Zusatzstoffen und Vorrichtung zur Durchführung des Verfahrens
DE19826138B4 (de) * 1998-04-17 2007-06-28 NU TECH Gesellschaft für Lasertechnik Materialprüfung und Meßtechnik mbH Verfahren zur Herstellung eines Werkstücks mit einer verschleißbeständigen Oberfläche
AU3862599A (en) * 1998-04-25 1999-11-16 Penn State Research Foundation Method of applying hard-facing material to a substrate
DE19941562A1 (de) * 1999-02-19 2000-08-31 Volkswagen Ag Verfahren und Anordnung zum Herstellen verschleißfester Oberflächen
DE19941563A1 (de) * 1999-02-19 2000-08-31 Volkswagen Ag Verfahren und Vorrichtung zum Bearbeiten einer Oberfläche eines Bauteils
DE19907105A1 (de) * 1999-02-19 2000-08-31 Volkswagen Ag Verfahren und Vorrichtung zum Herstellen von verschleißfesten, tribologischen Zylinderlaufflächen
DE19941564A1 (de) * 1999-02-19 2000-08-31 Volkswagen Ag Verfahren zum Bearbeiten einer Oberfläche eines Bauteils

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1524061A3 (fr) * 2003-10-08 2005-08-03 General Electric Company Dispositif de revêtement à arc plasma avec une unité locale ayant un anneau avec des passages pour fluides et pröcédés à arc plasma pour réaliser des revêtements à faible teneur en oxydes
US6963044B2 (en) 2003-10-08 2005-11-08 General Electric Compnay Coating apparatus and processes for forming low oxide coatings
WO2008113422A1 (fr) 2007-03-17 2008-09-25 Ks Kolbenschmidt Gmbh Génération d'une partie structure composite à fibres d'un composant par traitement de refusion par laser
CN103364528A (zh) * 2012-04-10 2013-10-23 湖南大学 用试样直接标定检测温度场熔池宽度的激光熔覆过程在线检测方法
US20130299470A1 (en) * 2012-05-10 2013-11-14 Korea Hydro And Nuclear Power Co., Ltd. Method for oxide dispersion strengthening of metallic material using laser
US9346125B2 (en) * 2012-05-10 2016-05-24 Korea Atomic Energy Research Institute Method for oxide dispersion strengthening of metallic material using laser
DE102015225813A1 (de) 2015-12-17 2017-06-22 Zf Friedrichshafen Ag Verfahren und Vorrichtung zum Beschichten einer Oberfläche mit Molybdän

Also Published As

Publication number Publication date
EP1127958B1 (fr) 2007-07-18
EP1127958A3 (fr) 2003-04-16
DE10009133A1 (de) 2001-08-30
ATE367459T1 (de) 2007-08-15
DE50112731D1 (de) 2007-08-30

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