EP1103344A2 - Procédé d'usinage de surfaces, en particulier de surfaces de contact de cylindres de moteurs à combustion interne - Google Patents

Procédé d'usinage de surfaces, en particulier de surfaces de contact de cylindres de moteurs à combustion interne Download PDF

Info

Publication number: EP1103344A2
Authority: EP; European Patent Office
Prior art keywords: cylinder; microns; cylinder running; alloyed; harder material
Prior art date: 1999-11-20
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

EP00122286A

Other languages

German (de)

English (en)

Other versions

EP1103344A3 (fr

EP1103344B1 (fr

Inventor

Rolf Dipl.-Ing. Heinemann

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.)

1999-11-20

Filing date

2000-10-20

Publication date

2001-05-30

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7930021&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1103344(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2000-10-20 Application filed by Volkswagen AG filed Critical Volkswagen AG

2001-05-30 Publication of EP1103344A2 publication Critical patent/EP1103344A2/fr

2003-10-01 Publication of EP1103344A3 publication Critical patent/EP1103344A3/fr

2008-01-02 Application granted granted Critical

2008-01-02 Publication of EP1103344B1 publication Critical patent/EP1103344B1/fr

2020-10-20 Anticipated expiration legal-status Critical

Status Revoked legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 28
238000003754 machining Methods 0.000 title claims description 9
239000000463 material Substances 0.000 claims abstract description 25
239000013078 crystal Substances 0.000 claims abstract description 14
229910052710 silicon Inorganic materials 0.000 claims abstract description 9
239000010703 silicon Substances 0.000 claims abstract description 9
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims abstract description 3
239000002245 particle Substances 0.000 claims description 13
238000002485 combustion reaction Methods 0.000 claims description 11
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
229910052751 metal Inorganic materials 0.000 claims description 8
239000002184 metal Substances 0.000 claims description 8
239000011159 matrix material Substances 0.000 claims description 6
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
229910001092 metal group alloy Inorganic materials 0.000 claims description 4
229910000838 Al alloy Inorganic materials 0.000 claims description 3
229910052759 nickel Inorganic materials 0.000 claims description 2
229910052721 tungsten Inorganic materials 0.000 claims description 2
239000010937 tungsten Substances 0.000 claims description 2
239000011248 coating agent Substances 0.000 abstract description 4
238000000576 coating method Methods 0.000 abstract description 4
238000004519 manufacturing process Methods 0.000 description 5
229910045601 alloy Inorganic materials 0.000 description 4
239000000956 alloy Substances 0.000 description 4
239000003921 oil Substances 0.000 description 4
238000005530 etching Methods 0.000 description 3
230000002349 favourable effect Effects 0.000 description 2
239000000446 fuel Substances 0.000 description 2
229910001060 Gray iron Inorganic materials 0.000 description 1
238000005275 alloying Methods 0.000 description 1
230000009286 beneficial effect Effects 0.000 description 1
238000005266 casting Methods 0.000 description 1
239000003518 caustics Substances 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000001816 cooling Methods 0.000 description 1
238000011161 development Methods 0.000 description 1
230000018109 developmental process Effects 0.000 description 1
230000007613 environmental effect Effects 0.000 description 1
238000009499 grossing Methods 0.000 description 1
238000005461 lubrication Methods 0.000 description 1
239000000155 melt Substances 0.000 description 1
238000002844 melting Methods 0.000 description 1
230000008018 melting Effects 0.000 description 1
238000004886 process control Methods 0.000 description 1
238000003672 processing method Methods 0.000 description 1
238000007711 solidification Methods 0.000 description 1
230000008023 solidification Effects 0.000 description 1
239000007921 spray Substances 0.000 description 1

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/02—Honing machines or devices; Accessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes

Definitions

the invention relates to a method for processing surfaces, in particular Cylinder treads on internal combustion engines with one, made of a light metal alloy existing cylinder crankcase, being in the cylinder treads by laser are melted, particles of a harder material are alloyed and where the light metal matrix with the alloyed hard material particles subsequently in at least a machining step is machined and / or honed.
EP 176 803 A1 describes a method for producing a cylinder block Light metal described. First, the one consisting of an aluminum alloy Cast cylinder block. Subsequently Silicon is applied to the cylinder surfaces, which is subsequently laser beam is melted so that an edge layer oversaturated with silicon forms.
the method for coating workpiece surfaces according to DE 197 11 756 A1 proposes a powdered on the cylinder surfaces of reciprocating machines Thermally spray alloy with a silicon-containing light metal matrix.
the functionality of the Cylinder treads a partial protrusion of the harder particles from the Light metal matrix useful.
the harder particles have been exposed predominantly by etching, whereby by resetting the light metal matrix sharp-edged edges of the crystals are exposed. These sharp edges are disadvantageous and can at least in the running-in phase of the engine for example There is damage to the piston ring.
the etching process is also costly and problematic considering environmental aspects. Therefore it becomes a replacement this processing by other process steps.
the object of the invention is to develop a processing method for surfaces To create light metal alloys, with which an exposure of the particles from harder Material without etching is possible. This method is intended in particular for a Series production of internal combustion engines cylinder surfaces with good tribological Properties are created.
This task is solved by first honing the cylinder running surfaces and by then further mechanical processing using a finely classified Honahle takes place, through which the crystals of the harder material are exposed. Subsequent mechanical processing can be carried out using a honing tool, whereby the cylinder surfaces are finely structured. More beneficial Refinements are described in claims 2 to 11.
the tribological Properties of the cylinder surfaces of internal combustion engines also among the Conditions of series production can be significantly improved.
the harder particles are exposed without the use of caustic agents. Through the gentle contours of the particles from the harder material will damage it Piston ring and piston largely excluded.
the combination of surveys (Crystal particles) and depressions (fine structure) gives functional advantages in the Run-in phase, especially good adherence of the oil film and avoidance mechanical disturbances due to the acting piston pressure forces.
the surveys and Deepening is achieved through mutual removal and application in engine operation increasingly balanced. Due to the good friction behavior that can be achieved Component pairing of pistons and cylinders reduces friction losses. In their As a result, fuel and oil consumption are reduced first and ultimately that too Exhaust emissions from the internal combustion engine.
the method is preferably used for machining cylinder running surfaces 1 Internal combustion engines applied.
the cylinder crankcase 2 this Internal combustion engine consists of a light metal alloy. It becomes an alloy chosen, which is relatively easy to handle in the casting process, for example one Aluminum alloy. By melting harder components subsequently upgraded those areas of the cylinder crankcase 2, which in the later intended use will be exposed to friction. This affects the Cylinder running surfaces 1, the properties of which the friction and wear behavior Determine component pairing of piston and cylinder.
the piston is in the drawing not shown in detail, only its movement is stylized by an arrow.
the cylinder running surfaces 1 are melted by means of a laser.
particles of a harder material are introduced to create a wear-resistant, to get tribologically favorable tread 1. Due to the process control arises in the case of solidification as a result of self-deterrence and, if necessary additional cooling a fine crystalline structure.
crystals 3 with an approximately spherical contour, at least with a rounded contour without sharp edges. The size of these crystals 3 should be maximum 50.0 ⁇ m and is predominantly in a range between 5.0 ⁇ m and 20.0 ⁇ m.
Fully melted nickel-containing or tungsten-containing material can be alloyed into the cylinder running surface 1.
a silicon-containing material is used.
the laser created Layer of the cylinder surface 1 after completion of the alloy a share of 15 to 53 vol.% Silicon.
the Machining and / or honing is then carried out. It is provided that the cylinder running surfaces 1 are honed. The fine crystalline Layer does not need to be etched to expose. Rather, there is now another one mechanical processing using a finely classified honing tool. In this step the light metal matrix is reset, i.e. the crystals 3 of the harder one Materials are exposed mechanically and stand opposite the plateau surfaces other surface. They break through the rounded contour of the crystals 3 not honing. In addition, the crystals 3 hardly act due to this contour abrasive, so that wear is low.
the height "H" of the exposure of the crystals 3 of the harder material is a maximum of 1.0 ⁇ m. Preferably an area between 0.1 ⁇ m and 0.3 ⁇ m.
the cylinder surfaces 1 are fine-structured by additional Wells 4 are introduced into the surface 1.
This editing can also be designed elevations 5 in addition to the wells 4.
the fine structuring of the cylinder running surface 1 has a depth "T" of a maximum of 2.0 ⁇ m on. A range between 0.1 ⁇ m and 0.5 ⁇ m is preferably used.
This Design gives advantages for the operation of the internal combustion engine in the Run-in phase by favoring the oil supply. The oil can settle in the Collect wells 4.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Physics & Mathematics (AREA)
Geometry (AREA)
Cylinder Crankcases Of Internal Combustion Engines (AREA)
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

EP00122286A 1999-11-20 2000-10-20 Procédé d'usinage de surfaces, en particulier de surfaces de contact de cylindres de moteurs à combustion interne Revoked EP1103344B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19956306		1999-11-20
DE19956306A DE19956306B4 (de)	1999-11-20	1999-11-20	Verfahren zum Bearbeiten von Oberflächen, insbesondere von Zylinderlaufflächen an Brennkraftmaschinen

Publications (3)

Publication Number	Publication Date
EP1103344A2 true EP1103344A2 (fr)	2001-05-30
EP1103344A3 EP1103344A3 (fr)	2003-10-01
EP1103344B1 EP1103344B1 (fr)	2008-01-02

Family

ID=7930021

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00122286A Revoked EP1103344B1 (fr)	1999-11-20	2000-10-20	Procédé d'usinage de surfaces, en particulier de surfaces de contact de cylindres de moteurs à combustion interne

Country Status (3)

Country	Link
EP (1)	EP1103344B1 (fr)
AT (1)	ATE382452T1 (fr)
DE (2)	DE19956306B4 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE10119337C1 (de) *	2001-04-20	2003-02-06	Daimler Chrysler Ag	Verfahren und Einrichtung zur Herstellung tribologischer Flächen
DE10323743B4 (de) *	2003-05-24	2007-01-18	Daimlerchrysler Ag	Freilegemasse, Freilegeverfahren und Freilegevorrichtung
DE102005018277B4 (de) *	2005-04-14	2011-09-15	Elgan-Diamantwerkzeuge Gmbh & Co. Kg	Verfahren zum Honen hartstoffpartikelverstärkter Oberflächen und Honwerkzeug
DE102007032915B4 (de)	2007-07-14	2021-11-25	Bayerische Motoren Werke Aktiengesellschaft	Verfahren zum Herstellen einer Brennkraftmaschine und nach diesem Verfahren hergestellte Brennkraftmaschine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3435460A1 (de) *	1984-09-27	1986-04-10	M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München	Verfahren zur herstellung von werkstuecken aus leichtmetall
DE3822169A1 (de) *	1988-06-30	1990-01-04	Kadia Diamant	Verfahren zum freilegen von silizium-kristallen
DE3922378A1 (de) *	1989-07-07	1991-01-17	Audi Ag	Verfahren zum herstellung verschleissfester oberflaechen an bauteilen aus einer aluminium-silicium-legierung
DE4438550C2 (de) *	1994-10-28	2001-03-01	Daimler Chrysler Ag	Verfahren zur Herstellung einer in ein Kurbelgehäuse einer Hubkolbenmaschine eingegossenen Zylinderlaufbüchse aus einer übereutektischen Aluminium-Silizium-Legierung
DE19542892C2 (de) *	1995-11-17	2000-08-10	Nagel Masch Werkzeug	Verfahren und Vorrichtung zum Honen von Kolbenlaufbahnen
DE19607774B4 (de) *	1996-03-01	2005-07-14	Nagel Maschinen- Und Werkzeugfabrik Gmbh	Verfahren zum Honen von Innenflächen eines Zylinders und Zylinder
DE19627926A1 (de) *	1996-07-11	1998-01-15	Ks Aluminium Technologie Ag	Verfahren zur Bearbeitung von Zylinderlaufflächen
DE19708402C1 (de) *	1997-03-01	1998-08-27	Daimler Benz Aerospace Ag	Verschleißfeste Schicht für Leichtmetall-Bauteile einer Verbrennungskraftmaschine sowie Verfahren zu deren Herstellung
DE19711756A1 (de) *	1997-03-21	1998-09-24	Audi Ag	Verfahren zum Beschichten von Oberflächen
DE19733205B4 (de) *	1997-08-01	2005-06-09	Daimlerchrysler Ag	Beschichtung für eine Zylinderlauffläche einer Hubkolbenmaschine aus einer übereutektischen Aluminium/Siliziumlegierung, Spritzpulver zu deren Herstellung und deren Verwendung

1999
- 1999-11-20 DE DE19956306A patent/DE19956306B4/de not_active Expired - Fee Related
2000
- 2000-10-20 DE DE50014890T patent/DE50014890D1/de not_active Expired - Lifetime
- 2000-10-20 EP EP00122286A patent/EP1103344B1/fr not_active Revoked
- 2000-10-20 AT AT00122286T patent/ATE382452T1/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
EP1103344A3 (fr)	2003-10-01
DE50014890D1 (de)	2008-02-14
DE19956306A1 (de)	2001-05-23
DE19956306B4 (de)	2010-02-11
ATE382452T1 (de)	2008-01-15
EP1103344B1 (fr)	2008-01-02

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