EP0290052A1 - Process for the fabrication of sliding surfaces of parts of motors for vehicles - Google Patents

Process for the fabrication of sliding surfaces of parts of motors for vehicles Download PDF

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Publication number
EP0290052A1
EP0290052A1 EP88107386A EP88107386A EP0290052A1 EP 0290052 A1 EP0290052 A1 EP 0290052A1 EP 88107386 A EP88107386 A EP 88107386A EP 88107386 A EP88107386 A EP 88107386A EP 0290052 A1 EP0290052 A1 EP 0290052A1
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EP
European Patent Office
Prior art keywords
layer
layer material
metal
hard alloy
hard
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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
EP88107386A
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German (de)
French (fr)
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EP0290052B1 (en
Inventor
Wolfgang Dr. Simm
Hans-Theo Steine
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ECG Immobilier SA
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Castolin SA
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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
    • C23C24/103—Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment

Definitions

  • the invention relates to a method for producing sliding surfaces on parts of vehicle engines which are exposed to vibration-superimposed metal / metal friction.
  • Coating vehicle engines using hard alloys is usually carried out by plasma spraying or flame spraying. These coatings have a relatively short service life when they are exposed to strong vibrations; these lead to crack formation or to chipping of the layer. Experiments with inlaid and sintered layers did not lead to the desired results. In the so-called MIP process, for example, costs are so high that the application remains practically insignificant.
  • the inventor has set itself the goal of developing a method of the type mentioned at the outset in such a way that, despite the low costs, very durable and solid sliding surfaces with long service lives are produced.
  • a layer of a hard alloy with elements of group 8, period 4, of the periodic table with a layer thickness of 0.1-3.0 mm is applied to the part and then melted with a high-energy beam.
  • group 6 elements can also be used instead of group 8 elements.
  • Both solutions according to the invention can be further improved by incorporating hard materials or hard metal precursors into the hard alloy.
  • the layer is applied using methods known per se, for example by thermal spraying or the application of a paste, and is supplemented according to the invention by melting with a high-energy beam, primarily with a laser beam.
  • the layer is rapidly cooled by a gaseous medium during this melting process.
  • a particularly favorable way of feeding the metal powder to the surface to be coated is possible in that the laser beam itself can be used as a means of transport for the metal powder.
  • the first process step of flame spraying or applying a paste is therefore unnecessary.
  • the sliding surface of a camshaft should be coated with a wear-resistant layer by thermal spraying with subsequent melting using a laser.
  • a powdery material was used as the coating material from a mixture of 50% matrix alloy with the composition Cr 10-16%, C 0.4-0.9%, B 1.5-3.5%, Si z-4%, Fe 1-4% balance Ni. 50% tungsten carbide with 10-15% Co was used from hard material.
  • a 1.5 mm thick layer was sprayed onto the workpiece prepared by blasting with an autogenous flame spray burner and this was then melted using a 5 kW laser on a turning device.
  • the parameters for the melting process were as follows: . defocused beam diameter 3.0 mm, . Turning speed 400 mm / min, . Overlap of the seam 25%.
  • the melted layer was then processed by grinding.
  • a wear-resistant layer is to be applied to the sliding surface of a rocker arm.
  • the composition of the matrix alloy was Cr 20-25%, ⁇ 6% Fe, ⁇ 3% B, ⁇ 4% Si, balance Ni.
  • the proportion of the resin binder was 2%.
  • the sliding surface of the rocker arm was milled 1 mm deep, degreased and the paste pressed into this milled area. After curing, the introduced layer was melted down with a laser beam - with the parameters according to Example 1.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

The fabrication of sliding surfaces on parts of vehicle motors which are subject to metal/metal friction with superposed vibration, is to be further developed in such a way that very durable and stable sliding surfaces having long service lives are formed, in spite of advantageous costs. For this purpose, a layer of a hard alloy with elements from group 8, period 4, of the periodic table is applied in a layer thickness from 0.1 to 3.0 mm to the part and then fused in by means of high-energy radiation. It is also possible to apply a layer of at least one refractory metal from group 6 of the periodic table in a layer thickness from 0.1 to 3.0 mm to the part and then to fuse it by means of high-energy radiation.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen von Gleitflächen auf Teilen von Fahrzeugmotoren, die einer schwingungsüberlagerten Metall/Metall-Reibung ausge­setzt sind.The invention relates to a method for producing sliding surfaces on parts of vehicle engines which are exposed to vibration-superimposed metal / metal friction.

Das Beschichten Fahrzeugmotoren mittels Hartlegie­rungen erfolgt üblicherweise durch Plasmaspritzen oder durch Flammspritzen. Diese Beschichtungen haben relativ geringe Standzeiten dann, wenn sie starken Schwingungs­belastungen ausgesetzt sind; diese führen zu Rißbil­dungen oder zum Abplatzen der Schicht. Versuche mit ein­gelegten und gesinterten Schichten führten nicht zu den gewünschten Ergebnissen. Beim sogenannten MIP-Verfahren entstehen beispielsweise so hohe Kosten, daß die Anwen­dung praktisch ohne Bedeutung bleibt.Coating vehicle engines using hard alloys is usually carried out by plasma spraying or flame spraying. These coatings have a relatively short service life when they are exposed to strong vibrations; these lead to crack formation or to chipping of the layer. Experiments with inlaid and sintered layers did not lead to the desired results. In the so-called MIP process, for example, costs are so high that the application remains practically insignificant.

Angesichts dieser Gegebenheit hat sich der Erfinder das Ziel gesetzt, ein Verfahren der eingangs erwähnten Art so weiter zu entwickeln, daß trotz günstiger Kosten sehr haltbare und feste Gleitflächen mit langen Standzeiten entstehen.In view of this, the inventor has set itself the goal of developing a method of the type mentioned at the outset in such a way that, despite the low costs, very durable and solid sliding surfaces with long service lives are produced.

Zur Lösung dieser Aufgabe führt, daß auf das Teil eine Schicht aus einer Hartlegierung mit Elementen der Gruppe 8, Periode 4,des Periodensystems mit einer Schichtstärke von 0,1 - 3,0 mm aufgetragen und anschließend mit einem Hochenergiestrahl geschmolzen wird. Versuche haben er­geben, daß statt der Elemente der Gruppe 8 auch Refraktor­metalle der Gruppe 6 eingesetzt zu werden vermögen.To achieve this object, a layer of a hard alloy with elements of group 8, period 4, of the periodic table with a layer thickness of 0.1-3.0 mm is applied to the part and then melted with a high-energy beam. Experiments have shown that group 6 elements can also be used instead of group 8 elements.

Beide erfindungsgemäßen Lösungen können noch dadurch ver­bessert werden, daß Hartstoffe oder Hartmetall-Vorstoffe in die Hartlegierung eingebaut werden.Both solutions according to the invention can be further improved by incorporating hard materials or hard metal precursors into the hard alloy.

Das Aufbringen der Schicht erfolgt mit an sich bekannten Verfahren, beispielsweise durch thermisches Spritzen oder das Auftragen einer Paste und wird erfindungsgemäß ergänzt durch das Einschmelzen mit einem Hochenergiestrahl, vor­nehmlich mit einem Laserstrahl.The layer is applied using methods known per se, for example by thermal spraying or the application of a paste, and is supplemented according to the invention by melting with a high-energy beam, primarily with a laser beam.

Nach einem weiteren Merkmal der Erfindung wird während die­ses Einschmelzvorganges die Schicht durch ein gasförmiges Medium rasch abgekühlt.According to a further feature of the invention, the layer is rapidly cooled by a gaseous medium during this melting process.

Eine besonders günstige Art der Zuführung des Metallpul­vers zu der zu beschichtenden Fläche ist dadurch möglich, daß der Laserstrahl selbst als Transportmittel für das Metallpulver verwendet werden kann. Es erübrigt sich da­mit der erste Verfahrensschritt des Flammspritzens oder Auftragens einer Paste.A particularly favorable way of feeding the metal powder to the surface to be coated is possible in that the laser beam itself can be used as a means of transport for the metal powder. The first process step of flame spraying or applying a paste is therefore unnecessary.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus den nachfolgend beschriebenen Beispielen.Further advantages, features and details of the invention result from the examples described below.

Beispiel 1example 1

Die Gleitfläche einer Nockenwelle sollte mit einer ver­schleißfesten Schicht durch thermisches Spritzen mit nach­träglichem Einschmelzen mit einem Laser beschichtet werden.The sliding surface of a camshaft should be coated with a wear-resistant layer by thermal spraying with subsequent melting using a laser.

Als Beschichtungswerkstoff wurde ein pulverförmiger Werk­stoff verwendet aus einem Gemisch von 50 % Matrixlegierung mit der Zusammensetzung Cr 10-16 %, C 0,4 - 0,9 %, B 1,5 - 3,5 %, Si z-4 %, Fe 1-4 % Rest Ni. Aus Hartstoff wurden 50 % Wolframkarbid mit 10-15 % Co eingesetzt.A powdery material was used as the coating material from a mixture of 50% matrix alloy with the composition Cr 10-16%, C 0.4-0.9%, B 1.5-3.5%, Si z-4%, Fe 1-4% balance Ni. 50% tungsten carbide with 10-15% Co was used from hard material.

Auf das durch Strahlen vorbereitete Werkstück wurde mit einem autogenen Flammspritzbrenner eine 1,5 mm dicke Schicht aufgespritzt und diese nachfolgend mit einem 5 kW-Laser an einer Drehvorrichtung eingeschmolzen. Die Parameter für den Einschmelzvorgang waren folgende:
    . entfokussierter Strahldurchmesser 3,0 mm,
    . Drehgeschwindigkeit 400 mm/min,
    . Überlappung der Naht 25 %.A 1.5 mm thick layer was sprayed onto the workpiece prepared by blasting with an autogenous flame spray burner and this was then melted using a 5 kW laser on a turning device. The parameters for the melting process were as follows:
. defocused beam diameter 3.0 mm,
. Turning speed 400 mm / min,
. Overlap of the seam 25%.

Die eingeschmolzene Schicht wurde anschließend durch Schlei­fen bearbeitet.The melted layer was then processed by grinding.

Bei den Versuchen mit der eingebauten Nockenwelle wurde eine ausgezeichnete Beständigkeit gegen Verschleiß unter Schwingungsbelastung festgestellt.In the tests with the built-in camshaft, excellent resistance to wear under vibration was found.

Beispiel 2Example 2

Auf die Gleitfläche eines Kipphebels soll eine verschließ­feste Schicht aufgebracht werden.A wear-resistant layer is to be applied to the sliding surface of a rocker arm.

Als Beschichtungswerkstoff wurde eine Metallpaste -- be­stehend aus einem Gemisch von 70 % Matrixlegierung und 30 % Molybdän -- verwendet. Die Zusammensetzung der Matrix­legierung war Cr 20-25 %, < 6 % Fe, < 3 % B, < 4 % Si, Rest Ni. Der Anteil des Harzbinders lag bei 2 %.A metal paste - consisting of a mixture of 70% matrix alloy and 30% molybdenum - was used as the coating material. The composition of the matrix alloy was Cr 20-25%, <6% Fe, <3% B, <4% Si, balance Ni. The proportion of the resin binder was 2%.

Die Gleitfläche des Kipphebels wurde 1 mm tief ausgefräst, entfettet und in diese Ausfräsung die Paste eingepreßt. Nach dem Aushärten wurde die eingebrachte Schicht mit ei­nem Laserstrahl -- mit den Parametern gemäß Beispiel 1 -- eingeschmolzen.The sliding surface of the rocker arm was milled 1 mm deep, degreased and the paste pressed into this milled area. After curing, the introduced layer was melted down with a laser beam - with the parameters according to Example 1.

Beim Einsatz der Teile wurde eine doppelte Standzeit gegen­über nicht beschichteten Vergleichsteilen festgestellt.When using the parts, a double service life compared to non-coated comparison parts was found.

Claims (17)

1. Verfahren zum Herstellen von Gleitflächen auf Teilen von Fahr­zeugmotoren, die einer schwingungsüberlagerten Metall/Metall-­Reibung ausgesetzt sind,
dadurch gekennzeichnet,
daß auf das Teil eine Schicht aus einer Hartlegierung mit Elementen der Gruppe 8, Periode 4, des Periodensystems mit einer Schichtdicke von 0,1 - 3,0 mm aufgetragen und anschließend mit einem Hochenergiestrahl eingeschmolzen wird.1. Method for producing sliding surfaces on parts of vehicle engines which are exposed to vibration-superimposed metal / metal friction,
characterized,
that a layer of a hard alloy with elements of group 8, period 4, of the periodic table is applied to the part with a layer thickness of 0.1-3.0 mm and then melted down with a high-energy beam. 2. Verfahren zum Herstellen von Gleitflächen auf Teilen von Fahr­zeugmotoren, die einer schwingungsüberlagerten Metall/Metall-­Reibung ausgesetzt sind, dadurch gekennzeichnet, daß auf das Teil eine Schicht aus wenigstens einem Refraktormetall der Gruppe 6 des Periodensystems mit einer Schichtdicke von 0,1 - 3,0 mm aufgetragen und anschließend mit einem Hochenergiestrahl geschmolzen wird.2. A method for producing sliding surfaces on parts of vehicle engines that are exposed to a vibration-superimposed metal / metal friction, characterized in that on the part a layer of at least one refractive metal from group 6 of the periodic table with a layer thickness of 0.1-3 , 0 mm and then melted with a high-energy beam. 3. Verfahren nach Anspruch 1 oder 2, gekennzeichnet, durch eine Schichtdicke über 0,2 mm, bevorzugt zwischen 0,5 und 2,0 mm.3. The method according to claim 1 or 2, characterized by a layer thickness over 0.2 mm, preferably between 0.5 and 2.0 mm. 4. Verfahren nach Anspruch 1 oder 2, gekennzeichnet durch die Zu­gabe von Hartstoffen oder Hartmetall-Vorstoffen zur Schicht, wobei gegebenenfalls die in die Schicht eingelagerten Hartstoffe Karbide, Boride, Silicide und/oder Nitride sind, bevorzugt Wolframkarbide oder Wolframschmelzkarbide.4. The method according to claim 1 or 2, characterized by the addition of hard materials or hard metal precursors to the layer, the hard materials embedded in the layer optionally being carbides, borides, silicides and / or nitrides, preferably tungsten carbide or tungsten carbide. 5. Verfahren nach Anspruch 1 oder 4, dadurch gekennzeichnet, daß als Schichtwerkstoff eine Hartlegierung auf Ni-Basis aufge­tragen wird, oder daß als Schichtwerkstoff eine Hartlegierung auf Co-Basis aufgetragen wird.5. The method according to claim 1 or 4, characterized in that a hard alloy based on Ni is applied as the layer material, or that a hard alloy based on Co is applied as the layer material. 6. Verfahren nach Anspruch 1 oder 4, dadurch gekennzeichnet, daß als Schichtwerkstoff eine Hartlegierung auf Fe-Basis aufge­tragen wird.6. The method according to claim 1 or 4, characterized in that a hard alloy based on Fe is applied as the layer material. 7. Verfahren nach Anspruch 2 oder 4, dadurch gekennzeichnet, daß als Schichtwerkstoff eine Hartlegierung mit Mo-Basis aufge­tragen wird.7. The method according to claim 2 or 4, characterized in that a hard alloy with Mo base is applied as the layer material. 8. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß als Schichtwerkstoff eine Hartlegierung auf NiMoFe-Basis aufgebracht wird.8. The method according to claim 1 and 2, characterized in that a hard alloy based on NiMoFe is applied as the layer material. 9. Verfahren nach Anspruch 5 und 11, dadurch gekennzeichnet, daß der Schichtwerkstoff Zusätze von weniger als 5 % B und weniger als 5 % Si enthält.9. The method according to claim 5 and 11, characterized in that the layer material contains additives of less than 5% B and less than 5% Si. 10. Verfahren nach wenigstens einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß als Schichtwerkstoff eine Legierung auf NiCrBSi-Basis aufgetragen wird, wobei gegebenenfalls dem Schichtwerkstoff Molybdän zugesetzt wird.10. The method according to at least one of claims 1 to 7, characterized in that an alloy based on NiCrBSi is applied as the layer material, molybdenum optionally being added to the layer material. 11. Verfahren nach Anspruch 4 und 10, dadurch gekennzeichnet, daß dem Schichtwerkstoff Wolframschmelzkarbid oder gesintertes Wolframkarbid zugesetzt wird.11. The method according to claim 4 and 10, characterized in that the layer material tungsten carbide or sintered tungsten carbide is added. 12. Verfahren nach Anspruch 1 und 2, dadurch gekennzeichnet, daß als Schichtwerkstoff eine amorphe NiMo-Basislegierung aufgetragen wird.12. The method according to claim 1 and 2, characterized in that an amorphous NiMo base alloy is applied as the layer material. 13. Verfahren nach wenigstens einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß das Aufbringen der Schicht mit einer ein Metallpulver und einem Binder enthaltenden Paste erfolgt, wobei gegebenenfalls als Binder ein Harz eingesetzt wird, bei dem der verbleibende Feststoffanteil unter 10 % liegt.13. The method according to at least one of claims 1 to 12, characterized in that the application of the layer is carried out with a paste containing a metal powder and a binder, wherein a resin is optionally used as the binder, in which the remaining solids content is below 10%. 14. Verfahren nach wenigstens einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß das Metallpulver in eine Aussparung des Teiles eingeschüttet und nachträglich gepreßt wird.14. The method according to at least one of claims 1 to 13, characterized in that the metal powder is poured into a recess of the part and is subsequently pressed. 15. Verfahren nach wenigstens einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Schicht auf dem Wege des thermischen Spritzens aufgebracht wird.15. The method according to at least one of claims 1 to 12, characterized in that the layer is applied by means of thermal spraying. 16. Verfahren nach wenigstens einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß die aufgebrachte Schicht mit einem Laser­strahl geschmolzen wird, wobei gegebenenfalls die Schicht während des Einschmelzens mit dem Laserstrahl durch ein gas­förmiges Medium rasch abgekühlt wird.16. The method according to at least one of claims 1 to 15, characterized in that the applied layer is melted with a laser beam, the layer optionally being rapidly cooled by a gaseous medium during melting with the laser beam. 17. Verfahren nach wenigstens einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die Schicht durch das Zuführen des Metallpulvers in den Laserstrahl hergestellt wird.17. The method according to at least one of claims 1 to 16, characterized in that the layer is produced by feeding the metal powder into the laser beam.
EP88107386A 1987-05-08 1988-05-07 Process for the fabrication of sliding surfaces of parts of motors for vehicles Expired - Lifetime EP0290052B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873715325 DE3715325A1 (en) 1987-05-08 1987-05-08 METHOD FOR PRODUCING SLIDING SURFACES ON PARTS OF VEHICLE ENGINES
DE3715325 1987-05-08

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Publication Number Publication Date
EP0290052A1 true EP0290052A1 (en) 1988-11-09
EP0290052B1 EP0290052B1 (en) 1992-07-22

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290051A2 (en) * 1987-05-08 1988-11-09 Castolin S.A. Process for manufacturing a self-sharpening cutting or knife edge
EP0438971A1 (en) * 1990-01-22 1991-07-31 Sulzer Innotec Ag Coated metallic substrate
EP0456847A1 (en) * 1987-06-26 1991-11-21 Bernex Gmbh Method of producing a wear- and corrosion-resistant protective coating layer, composed of an austenitic steel alloy and so produced protective layer
DE19643029A1 (en) * 1996-10-18 1998-04-23 Bayerische Motoren Werke Ag Method for coating an internal combustion engine component made of an aluminum alloy with silicon
EP1559807A1 (en) * 2004-01-28 2005-08-03 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Method of repairing worn sliding surfaces, especially cylinder bores of engine blocks
EP1161569B2 (en) † 1999-02-19 2006-02-08 Volkswagen Aktiengesellschaft Method and system for producing wear-resistant surfaces

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3936479A1 (en) * 1989-11-02 1991-05-08 Guenter Link Metallic and ceramic substrate coating method - using powder material applied to surface in liq. medium and melted by laser beam
DE4413306C1 (en) * 1994-04-16 1995-10-19 Daimler Benz Aerospace Ag Reinforcing a construction component
DE10017691A1 (en) * 2000-04-08 2001-10-11 Bayerische Motoren Werke Ag Method for forming a line of weakness in a break-separable component, in particular with a bearing arrangement
DE102004025553B4 (en) * 2004-05-25 2006-04-20 Daimlerchrysler Ag Camshaft and a method for its production
DE102005022264A1 (en) * 2005-05-10 2006-11-16 Fachhochschule Münster Liquid coatable baking coating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613588A1 (en) * 1975-04-11 1976-10-21 Eutectic Corp METHOD OF EXTENDING THE LIFE OF LINE PIPE
EP0001216A1 (en) * 1977-09-16 1979-04-04 Messer Griesheim Gmbh Apparatus for working materials, especially for cutting out workpieces by means of a laser beam
DE3503105A1 (en) * 1985-01-30 1986-07-31 Leybold-Heraeus GmbH, 5000 Köln METHOD FOR COATING MACHINE PARTS AND TOOLS WITH CARBIDE MATERIAL AND MACHINE PARTS AND TOOLS PRODUCED BY THE METHOD
GB2179678A (en) * 1985-08-28 1987-03-11 Atomic Energy Authority Uk Sputter ion plating of tungsten and carbon

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3437983C1 (en) * 1984-10-17 1986-03-20 Eisen- und Stahlwerk Pleissner GmbH, 3420 Herzberg Method for applying a metallic protective film onto a metallic substrate
DE3509242A1 (en) * 1985-03-14 1986-09-18 Hermann C. Starck Berlin, 1000 Berlin METHOD FOR PRODUCING SURFACE PROTECTIVE LAYERS WITH NIOB OR TANTAL
JPS6293314A (en) * 1985-10-21 1987-04-28 Honda Motor Co Ltd Wear resistant sliding member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2613588A1 (en) * 1975-04-11 1976-10-21 Eutectic Corp METHOD OF EXTENDING THE LIFE OF LINE PIPE
EP0001216A1 (en) * 1977-09-16 1979-04-04 Messer Griesheim Gmbh Apparatus for working materials, especially for cutting out workpieces by means of a laser beam
DE3503105A1 (en) * 1985-01-30 1986-07-31 Leybold-Heraeus GmbH, 5000 Köln METHOD FOR COATING MACHINE PARTS AND TOOLS WITH CARBIDE MATERIAL AND MACHINE PARTS AND TOOLS PRODUCED BY THE METHOD
GB2179678A (en) * 1985-08-28 1987-03-11 Atomic Energy Authority Uk Sputter ion plating of tungsten and carbon

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290051A2 (en) * 1987-05-08 1988-11-09 Castolin S.A. Process for manufacturing a self-sharpening cutting or knife edge
EP0290051A3 (en) * 1987-05-08 1989-11-08 Castolin S.A. Process for manufacturing a self-sharpening cutting or knife edge
EP0456847A1 (en) * 1987-06-26 1991-11-21 Bernex Gmbh Method of producing a wear- and corrosion-resistant protective coating layer, composed of an austenitic steel alloy and so produced protective layer
EP0438971A1 (en) * 1990-01-22 1991-07-31 Sulzer Innotec Ag Coated metallic substrate
US5230755A (en) * 1990-01-22 1993-07-27 Sulzer Brothers Limited Protective layer for a metal substrate and a method of producing same
DE19643029A1 (en) * 1996-10-18 1998-04-23 Bayerische Motoren Werke Ag Method for coating an internal combustion engine component made of an aluminum alloy with silicon
EP1161569B2 (en) † 1999-02-19 2006-02-08 Volkswagen Aktiengesellschaft Method and system for producing wear-resistant surfaces
EP1559807A1 (en) * 2004-01-28 2005-08-03 Ford Global Technologies, LLC, A subsidary of Ford Motor Company Method of repairing worn sliding surfaces, especially cylinder bores of engine blocks
EP1559808A1 (en) * 2004-01-28 2005-08-03 Ford Global Technologies, LLC Iron containing coating applied by thermal spraying on a sliding surface,especially on cylinder boxes of engine blocks

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DE3872931D1 (en) 1992-08-27
EP0290052B1 (en) 1992-07-22
DE3715325A1 (en) 1988-11-24

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