DE2200003B2 - PROCESS FOR SURFACE FINISHING OF LIGHT ALLOY PISTONS - Google Patents

PROCESS FOR SURFACE FINISHING OF LIGHT ALLOY PISTONS

Info

Publication number
DE2200003B2
DE2200003B2 DE19722200003 DE2200003A DE2200003B2 DE 2200003 B2 DE2200003 B2 DE 2200003B2 DE 19722200003 DE19722200003 DE 19722200003 DE 2200003 A DE2200003 A DE 2200003A DE 2200003 B2 DE2200003 B2 DE 2200003B2
Authority
DE
Germany
Prior art keywords
piston
ring
area
aluminum alloy
light metal
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.)
Ceased
Application number
DE19722200003
Other languages
German (de)
Other versions
DE2200003A1 (en
Inventor
Kurt Dipl.-Ing. Dr 7100 Heilbronn; Weiss Hermann Ing. Anderko (grad.), 7107 Neckarsulm
Original Assignee
Karl Schmidt Gmbh, 7107 Neckarsulm
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 Karl Schmidt Gmbh, 7107 Neckarsulm filed Critical Karl Schmidt Gmbh, 7107 Neckarsulm
Priority to DE19722200003 priority Critical patent/DE2200003B2/en
Priority to FR7242072A priority patent/FR2166360B1/fr
Priority to IT3321672A priority patent/IT972605B/en
Priority to GB42873A priority patent/GB1406143A/en
Publication of DE2200003A1 publication Critical patent/DE2200003A1/en
Publication of DE2200003B2 publication Critical patent/DE2200003B2/en
Ceased legal-status Critical Current

Links

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
    • C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
    • C23C26/02—Coating not provided for in groups C23C2/00 - C23C24/00 applying molten material to the substrate
    • 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
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24—Selection of soldering or welding materials proper
    • B23K35/28—Selection of soldering or welding materials proper with the principal constituent melting at less than 950 degrees C
    • B23K35/286—Al as the principal constituent
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F3/00—Pistons 
    • F02F3/10—Pistons  having surface coverings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/02—Light metals
    • F05C2201/021—Aluminium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
    • F05C2201/0466—Nickel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2201/00—Metals
    • F05C2201/04—Heavy metals
    • F05C2201/0469—Other heavy metals
    • F05C2201/0475—Copper or alloys thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Oberflächenvergütung von aus Leichtmetall bestehenden Kolben für Brennkraftmaschinen im Bereich der Ringpartie, vorzugsweise im Bereich der obersten Ringnute, mittels einer 18 bis 30% Silizium enthaltenden kupferhaltigen Aluminiumlegierung sowie nachfolgender Wärmebehandlung der Kolben.The invention relates to a method for surface finishing of pistons made of light metal for internal combustion engines in the area of the ring belt, preferably in the area of the uppermost Ring grooves, by means of a copper-containing aluminum alloy containing 18 to 30% silicon, as well as subsequent heat treatment of the pistons.

Es sind Brennkraftmaschinen bekannt, die entweder nach ihrer Auslegung oder nach dem Arbeitsort einen besonders hohen Verschleiß der Ringnuten, insbesondere der obersten Ringnute, mit Bruchgefahr der Kolbenringe befürchten lassen oder zeigen.Internal combustion engines are known, either according to their design or according to the place of work Particularly high wear of the ring grooves, especially the topmost ring groove, with the risk of breakage of the piston rings cause fear or show.

Anfälligkeit hierfür besteht, wenn aufgrund der konstruktiven Gesamtauslegung der Verbrennungskraftmaschine die Temperaturen im Ringfeld abnormal hoch liegen, extreme Rückstände bildender Kraftstoff gefahren wird, aus besonderen Gründen das Spiel des Kolbens groß gewählt wurde und dadurch Kippbewegungen ermöglicht werden und die Luftfilterung, besonders in staubreicher Umgebung, z. B. Baustellen, unzulänglich ist und nicht wesentlich verbessert werden kann.There is susceptibility to this if due to the overall structural design of the internal combustion engine the temperatures in the ring field are abnormally high, extreme residue-forming fuel is driven, for special reasons that The clearance of the piston was chosen to be large and thereby tilting movements are enabled and the air filtering, especially in a dusty environment, e.g. B. construction sites, is inadequate and not significantly improved can be.

In allen Fällen weiden Kolbenringträger aus Grauguß oder Stahl verwendet, die mit dem Leichtmetallkolben vergossen und in die die Kolbenringnuten spanend eingearbeitet sind. Der Kolbenring liegt auf diese Art in verschleißfestem Material eingebettet und ist gleichzeitig weniger hohen Temperaturen ausgesetzt. In all cases, piston ring carriers made of gray cast iron or steel are used with the light metal piston encapsulated and in which the piston ring grooves are machined. The piston ring is on this type is embedded in wear-resistant material and at the same time is less exposed to high temperatures.

Oftmals werden auch Ringträger verwendet, um außergewöhnlich hohe Laufzeiten für den Kolben zu ermöglichen. Das ist dann sinnvoll, wenn bei allen übrigen, ebenfalls dem natürlichen Verschleiß unterworfenen wichtigen Triebwerksteilen ähnlich lange Zeiten zwischen den Überholungen liegen.Ring carriers are also often used in order to achieve exceptionally long running times for the piston enable. This makes sense if all the others are also subject to natural wear and tear important engine parts have a similarly long time between overhauls.

Die bekannteste Ringträgerbauart ist der zumeist aus einem hochlegierlen, aiistcnivischcn Sondergußeisen bestehende volle Ringträger, der einen gleichbleibenden vollen Querschnitt hat und der gemäß den Erfordernissen wie Anzahl der aufzunehmenden Kolbenringe und Verankerung im Kolbenkörper ausgebildet ist. In großem Maß ist der volle Ringträger über eine intermetallische Verbundschicht, die nach dem unter der Bezeichnung »ALFIN-Verfahren« bekannten Verfahren erzeugt wird, mit dem Kolben verbunden (Bensinger, W.-D. u. A. Meier: Kolben, Pleuel und Kurbelwelle bei schnellaufenden Verbrennungsmotoren, 2. Auflage, Seite 11, Berlin/Göttingen/Heidelberg 1961).The best-known type of ring carrier is usually made from a high-alloy, aiistcnivischcn special cast iron existing full ring carrier, which has a constant full cross-section and which according to requirements such as the number of piston rings to be accommodated and anchoring in the piston body is. To a large extent, the full ring carrier is made up of an intermetallic composite layer which, according to the under the designation "ALFIN process" known process is generated, connected to the piston (Bensinger, W.-D. u.A. Meier: Pistons, connecting rods and crankshafts in high-speed internal combustion engines, 2nd edition, page 11, Berlin / Göttingen / Heidelberg 1961).

Auf die Herstellung einer intermetallischen Verbundschicht zwischen Ringträger und Kolben kann verzichtet werden, wenn statt des vollen Rir.gträgers ein sogenannter aufgelöster Ringträger in den Kolben eingegossen ist. Da wegen seiner Biegeelastizität, her-On the production of an intermetallic composite layer between ring carrier and piston can be omitted if instead of the full ring carrier a so-called dissolved ring carrier is cast into the piston. Because of its flexural elasticity,

1S vorgerufen durch seine mäanderförmige Ausführungsform, ein hoher Ausdehnungskoeffizient nicht mehr gefordert werden muß, kann als Material gewöhnlicher Stahl oder Grauguß verwendet werden. Der Kolbenring liegt im Bereich sowohl auf den harten Flanken des Ringträgers als aber auch auf dem gut wärmeleitenden Kolbenwerkstoff auf (DT-PS 1059712 und DT-PS 1042956). 1 S caused by its meandering design, a high coefficient of expansion no longer has to be required, ordinary steel or gray cast iron can be used as the material. The piston ring rests on the hard flanks of the ring carrier as well as on the piston material, which conducts heat well (DT-PS 1059712 and DT-PS 1042956).

Bekannt ist auch ein Leichtmetallkolben, bei dem die in dem Kolben befindlichen Ringnuten mit Mo-Also known is a light metal piston in which the annular grooves in the piston with Mo-

a5 Iybdän, Titan, Kobalt, Nickel oder deren Legierungen sowie rostfreiem Stahl in einer Einzel- oder Mehrfachschicht, in die die Ringnuten spanend eingearbeitet werden, ausgefüllt sind (DT-OS 1400115).
Bekannt ist auch, zur Verbesserung der Verschleißfestigkeit eines Leichtmetallkolbens auf dessen Oberfläche einen verschleißfesten Aluminiumwerkstoff der Zusammensetzung 12 bis 30% Silizium, 10 bis 30% Kupfer, 2 bis 6% Mangan und bis zu 6% Eisen, Rest Aluminium, durch Auftragsschweißen aufzubringen, indem der im Lichtbogen verflüssigte Aluminiumwerkstoff auf den angeschmolzenen Kolbenwerkstoff trifft und hier eine harte Oberflächenschicht erzeugt. Die Zusammensetzung der Oberflächenschicht ändert sich von außen nach innen, wobei die an Zusatzwerkstoff ärmste Schicht am tiefsten zuunterst liegt (US-PS 3 285 717). Die Legierungsbildung erfolgt hierbei durch Diffundieren des Zusatzwerkstoffs in die Oberfläche des Leichtmetallkolbens, Solche Schutzschichten genügen in aller Regel nicht mehr den hohen Anl'orderungen moderner Brennkraftmaschinen. a 5 Iybdenum, titanium, cobalt, nickel or their alloys as well as stainless steel are filled in a single or multiple layer into which the ring grooves are machined (DT-OS 1400115).
It is also known to improve the wear resistance of a light metal piston on its surface by depositing a wear-resistant aluminum material with the composition 12 to 30% silicon, 10 to 30% copper, 2 to 6% manganese and up to 6% iron, the remainder being aluminum, by the aluminum material liquefied in the arc meets the melted piston material and creates a hard surface layer here. The composition of the surface layer changes from the outside to the inside, with the layer with the poorest filler material lying deepest at the bottom (US Pat. No. 3,285,717). The alloy is formed here by diffusion of the filler material into the surface of the light metal piston. Such protective layers generally no longer meet the stringent requirements of modern internal combustion engines.

Gegenüber dem vorgenannten Stand der Technik waren Gewichts- und Aufwandsgründe ausschlaggebend für die Entwicklung des erfindungsgemäßen Verfahrens, mit dessen Hilfe der Verschleißangriff im Bereich der Ringpartie von Leichtmetallkolben, unter Verzicht auf die Verwendung von Ringträgern aus Sondereisenlegierungen, auf ein Minimum gesenkt werden kann.Compared to the aforementioned prior art, weight and effort reasons were decisive for the development of the method according to the invention, with the help of which the wear attack in Area of the ring belt made of light metal pistons, dispensing with the use of ring carriers Special iron alloys, can be reduced to a minimum.

Nach der Erfindung wird das dadurch erreicht, daß eirfindungsgemäß eine 18 bis 30% Silizium, 2 bis 6% Kupfer und gegebenenfalls noch bis zu 4% Magnesium enthaltende Aluminiumlegierung unter Anwendung von Elektronenstrahlen unter Auflegieren dei Külbenlegierung mit dieser verschmolzen wird.According to the invention this is achieved in that a 18 to 30% silicon, 2 to 6% Copper and optionally aluminum alloy containing up to 4% magnesium using is fused by electron beams with alloying of the bulb alloy with this.

[)io Aluminiumlegierung wird in Band- oder Drahtform oder als aufgeschrumpfter Ring im Bereich der zu vergütenden Oberfläche angebracht.[) io aluminum alloy is available in strip or Wire form or attached as a shrunk-on ring in the area of the surface to be tempered.

Im manchen Fällen ist es angebracht, wenn die vergütete Oberfläche chemisch oder mechanisch z:ur Herausarbeitung eines aus harten Bestandteilen, vorzugsweise Silizium, bestehenden Reliefs behandelt wird.In some cases it is appropriate if the remunerated Surface chemical or mechanical for working out one from hard components, preferably Silicon, existing relief is treated.

Die nach dem erlindungsgemäßen Verfahren er-According to the method according to the invention

22 OO 00322 OO 003

haltene Oberfläche hat folgende vorteilhafte Eigenschaften: holding surface has the following advantageous properties:

a) einengegenüber dem Leichtmetallkolbenwerkstoff wesentlich erhöhten Siliziumgehalt in einer äußerst feinen Verteilung,a) a significantly increased silicon content in one compared to the light metal piston material extremely fine distribution,

b) einen gegenüber dem Leichtmetallkolbenwerkstoff erhöhten Gehalt an den Aluminiummischkristall aushärtenden Elementen.b) an increased aluminum mixed crystal content compared to the light metal piston material curing elements.

Durch diese Eigenschaften werden die Verschleißfestigkeit, die Warmhärte und die Warmfestigkeit des erfindungsgemäß behandelten Bereichs des Leichtmetallkolbenwerkstoffs so wesentlich gesteigert, daß der verschleißenden wie auch der verformenden Wirkung, z. B. der Kolbenringe in den Ringnuten, ein dem Ringträger vergleichbarer Widerstand entgegengesetzt wird. Hinzu kommt, daß keine Schweißeigenspannungen auftreten und damit Sprödbrüche vermieden werden.These properties reduce the wear resistance, the hot hardness and the high temperature strength of the according to the invention treated area of the light metal piston material so significantly increased that the wearing as well as the deforming effect, z. B. the piston rings in the ring grooves, a resistance comparable to the ring carrier opposite will. In addition, there are no residual welding stresses and thus brittle fractures are avoided will.

Durch geeignete Wahl der Menge an Zusatzwerkstoif und Tiefe der Aufschmelzzone kann die TiefeBy suitable choice of the amount of additional material and the depth of the melting zone, the depth

ίο der Oberflächenvergütung in weiten Bereichen variiert werden.ίο the surface finish varies widely will.

Claims (3)

22 OO 003 Patentansprüche:22 OO 003 claims: 1. Verfahren zur Oberflächenvergütung von aus Leichtmetall bestehend: η Kolben für Brennkraftmaschinen im Bereich der Ringpartie, vorzugsweise im Bereich der obersten Ringnute, mittels einer 18 bis 30% Silizium enthaltenden kupferhaltigen Aluminiumlegierung sowie nachfolgender Wärmebehandlung der Kolben, dadurch gekennzeichnet, daß die 2 bis 6% Kupfer enthaltende Aluminiumlegierung, die noch bis zu 4% Magnesium aufweisen kann, unter Anwendung von Elektronenstrahlen unter Auflegieren der Kolbenlegierung mit dieser verschmolzen wird.1. Process for the surface treatment of light metal consisting of: η pistons for internal combustion engines in the area of the ring belt, preferably in the area of the uppermost ring groove, means a copper-containing aluminum alloy containing 18 to 30% silicon and the following Heat treatment of the piston, characterized in that the 2 to 6% copper containing aluminum alloy, which can still have up to 4% magnesium, using fused by electron beams with alloying of the piston alloy with this will. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Aluminiumlegierung in Band- oder Drahtform im Bereich der zu vergütenden Oberfläche angebracht wird.2. The method according to claim 1, characterized in that the aluminum alloy in Tape or wire form is attached in the area of the surface to be treated. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Aluminiumlegierung als Ring im Bereich der zu vergütenden Oberfläche aufgeschrumpft wird.3. The method according to claim 1, characterized in that the aluminum alloy as Ring is shrunk on in the area of the surface to be treated.
DE19722200003 1972-01-03 1972-01-03 PROCESS FOR SURFACE FINISHING OF LIGHT ALLOY PISTONS Ceased DE2200003B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19722200003 DE2200003B2 (en) 1972-01-03 1972-01-03 PROCESS FOR SURFACE FINISHING OF LIGHT ALLOY PISTONS
FR7242072A FR2166360B1 (en) 1972-01-03 1972-11-27
IT3321672A IT972605B (en) 1972-01-03 1972-12-20 PROCEDURE FOR REMEDIATION OF THE SURFACE OF CONSTITUTIONAL ELEMENTS MADE OF LIGHT METALS
GB42873A GB1406143A (en) 1972-01-03 1973-01-03 Process for the surface hardening of aluminium and aluminium alloy components

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722200003 DE2200003B2 (en) 1972-01-03 1972-01-03 PROCESS FOR SURFACE FINISHING OF LIGHT ALLOY PISTONS

Publications (2)

Publication Number Publication Date
DE2200003A1 DE2200003A1 (en) 1973-07-26
DE2200003B2 true DE2200003B2 (en) 1977-09-15

Family

ID=5832188

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722200003 Ceased DE2200003B2 (en) 1972-01-03 1972-01-03 PROCESS FOR SURFACE FINISHING OF LIGHT ALLOY PISTONS

Country Status (4)

Country Link
DE (1) DE2200003B2 (en)
FR (1) FR2166360B1 (en)
GB (1) GB1406143A (en)
IT (1) IT972605B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937108A1 (en) * 1978-09-15 1980-03-27 Metal Leve Sa METHOD FOR RETURNING SLIDING ALLOYS, IN PARTICULAR SLIDING BEARING ALLOYS
DE3435460A1 (en) * 1984-09-27 1986-04-10 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München METHOD FOR PRODUCING WORKPIECES FROM LIGHT METAL
DE19630197A1 (en) * 1996-07-26 1998-01-29 Kolbenschmidt Ag Process for producing wear-resistant surfaces on components made of aluminum materials and device for carrying it out; Pistons for internal combustion engines
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
DE19740696A1 (en) * 1997-09-16 1999-03-18 Bayerische Motoren Werke Ag Method for producing and treating metal layers
DE19842608A1 (en) * 1998-09-17 2000-03-23 Ks Aluminium Technologie Ag Production of a wear layer on the tracks of light metal cylinders for I.C. engines comprises radiating an electromagnetic field onto the wear layer and partially melting in a boundary surface layer

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2835332C2 (en) * 1978-08-11 1982-06-24 Messer Griesheim Gmbh, 6000 Frankfurt Piston with an aluminum alloy body
DE2926699C2 (en) * 1979-07-02 1983-01-05 Central'nyj naučno-issledovatel'skij dizel'nyj institut CNIDI, Leningrad Method for solidifying an annular groove in an aluminum alloy piston
FR2503601A1 (en) * 1981-04-09 1982-10-15 Inst Elektroswarki Patona Weld deposition onto aluminium alloy surfaces - comprises remelting at least once using controlled heat output and increasing weld pool volume each time
IT1205610B (en) * 1981-04-28 1989-03-23 Ae Plc PROCEDURE FOR THE MANUFACTURE OF ALUMINUM-BASED PISTONS IN PARTICULARLY FOR ENGINES OR COMPRESSORS OR SIMILAR
US4500364A (en) * 1982-04-23 1985-02-19 Exxon Research & Engineering Co. Method of forming a protective aluminum-silicon coating composition for metal substrates
US4746540A (en) * 1985-08-13 1988-05-24 Toyota Jidosha Kabushiki Kaisha Method for forming alloy layer upon aluminum alloy substrate by irradiating with a CO2 laser, on substrate surface, alloy powder containing substance for alloying and silicon or bismuth
DE3922378A1 (en) * 1989-07-07 1991-01-17 Audi Ag METHOD FOR PRODUCING WEAR-RESISTANT SURFACES ON COMPONENTS FROM AN ALUMINUM-SILICUM ALLOY
DE3928092A1 (en) * 1989-08-25 1991-02-28 Mordike Barry Leslie Coating metal surfaces using laser-wire coating method - with wire electro-resistance preheated to improve flow capabilities and improve coating qualities
EP0438971B1 (en) * 1990-01-22 1994-05-11 Sulzer Innotec Ag Coated metallic substrate
DE4438550C2 (en) * 1994-10-28 2001-03-01 Daimler Chrysler Ag Process for producing a cylinder liner cast from a hypereutectic aluminum-silicon alloy into a crankcase of a reciprocating piston machine
US6096143A (en) * 1994-10-28 2000-08-01 Daimlerchrysler Ag Cylinder liner of a hypereutectic aluminum/silicon alloy for use in a crankcase of a reciprocating piston engine and process for producing such a cylinder liner
US5916390A (en) * 1995-10-30 1999-06-29 Mercedes-Benz Ag Cylinder liner comprising a supereutectic aluminum/silicon alloy for sealing into a crankcase of a reciprocating piston engine and method of producing such a cylinder liner
JP3173452B2 (en) * 1997-02-28 2001-06-04 株式会社豊田中央研究所 Wear-resistant covering member and method of manufacturing the same
DE19912889A1 (en) * 1999-03-23 2000-09-28 Daimler Chrysler Ag Production of a valve seat for a cylinder head of an I.C. engine comprises using an additional material made of an an alloy of aluminum, silicon and nickel
DE10156196C1 (en) 2001-11-15 2003-01-02 Daimler Chrysler Ag Production of a valve seat used for a cylinder head of internal combustion engine comprises fusing an additive material made from an alloy or a mixture of an aluminum-lead alloy and a further component at a certain point on a cylinder head
DE102012204947A1 (en) * 2012-03-28 2013-10-02 Mahle International Gmbh Method for producing an aluminum piston

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1486668A (en) * 1966-07-13 1967-06-30 Wellworthy Ltd Development of pistons for engines or generating machines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937108A1 (en) * 1978-09-15 1980-03-27 Metal Leve Sa METHOD FOR RETURNING SLIDING ALLOYS, IN PARTICULAR SLIDING BEARING ALLOYS
DE3435460A1 (en) * 1984-09-27 1986-04-10 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München METHOD FOR PRODUCING WORKPIECES FROM LIGHT METAL
DE19630197A1 (en) * 1996-07-26 1998-01-29 Kolbenschmidt Ag Process for producing wear-resistant surfaces on components made of aluminum materials and device for carrying it out; Pistons for internal combustion engines
DE19630197C2 (en) * 1996-07-26 1999-10-14 Kolbenschmidt Ag Process for producing wear-resistant surfaces on components made of aluminum materials and device for carrying it out; Pistons for internal combustion engines
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
DE19740696A1 (en) * 1997-09-16 1999-03-18 Bayerische Motoren Werke Ag Method for producing and treating metal layers
DE19842608A1 (en) * 1998-09-17 2000-03-23 Ks Aluminium Technologie Ag Production of a wear layer on the tracks of light metal cylinders for I.C. engines comprises radiating an electromagnetic field onto the wear layer and partially melting in a boundary surface layer

Also Published As

Publication number Publication date
DE2200003A1 (en) 1973-07-26
IT972605B (en) 1974-05-31
FR2166360A1 (en) 1973-08-17
GB1406143A (en) 1975-09-17
FR2166360B1 (en) 1976-06-04

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