EP3635151A1 - Verfahren zur herstellung einer gleitfläche - Google Patents
Verfahren zur herstellung einer gleitflächeInfo
- Publication number
- EP3635151A1 EP3635151A1 EP18718674.7A EP18718674A EP3635151A1 EP 3635151 A1 EP3635151 A1 EP 3635151A1 EP 18718674 A EP18718674 A EP 18718674A EP 3635151 A1 EP3635151 A1 EP 3635151A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine element
- coating
- partially
- elevations
- laser
- 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
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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/0605—Carbon
-
- 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
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/58—After-treatment
- C23C14/5806—Thermal treatment
- C23C14/5813—Thermal treatment using lasers
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/56—After-treatment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/14—Tappets; Push rods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/14—Tappets; Push rods
- F01L1/16—Silencing impact; Reducing wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
- F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
- F02M59/102—Mechanical drive, e.g. tappets or cams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2301/00—Using particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/14—Special methods of manufacture; Running-in
Definitions
- the invention relates to a method for producing a sliding surface on a machine element. Furthermore, the invention also relates to a machine element with a sliding surface.
- DE 10 2009 060 924 A1 describes a structure containing a solid lubricant for a vacuum tribological application.
- a layer system comprising a layer of diamond-like carbon is formed on a substrate base.
- a recess structure is formed, which is filled with a solid lubricant.
- the object of the present invention is to develop a method for producing a sliding surface on a machine element as well as a machine element with a sliding surface.
- a coating is first applied to a surface of the machine element, after which at least partially a surface structure for friction reduction by means of laser is formed on the coating, the surface structure comprising a plurality of elevations which are formed by a local phase transformation of the coating by means of laser.
- the generation of the surface structure by means of laser takes place through the local phase transformation of the coating.
- the sliding surface of the machine element is formed.
- that is Machine element designed as a bucket tappet.
- the machine element is intended to preferably have a sliding WälzAuth to the other machine element.
- the machine element can also be designed as a lever-like cam follower for a valve train system of an internal combustion engine or as a component of a pump.
- the elevations in the coating result in a reduction in friction, which depends on the effective contact area between the two machine elements.
- An improved friction can be achieved, for example, in which about 25% of the surface of the machine element is in operative contact with the other machine element.
- about a quarter of the surface of the machine element or the coating formed thereon is covered with elevations which are in effective contact with the further machine element.
- a larger or a smaller proportion of the surface of the machine element may be covered with the elevations.
- the elevations are preferably arranged on a cup tappet end face and in particular arranged circularly on a plurality of circular paths, which have different diameters.
- the bumps may be arranged spirally or randomly distributed on the bucket tappet face, or may be formed in alternative shapes that are evenly distributed or randomly arranged.
- further elevations may be formed on the bucket tappet jacket surface.
- the elevations may be arranged on circumferential circular paths, which are arranged axially spaced from each other.
- the elevations may be arranged randomly distributed on the bucket tappet casing surface.
- the elevations Preferably, the elevations have a height of 0.02 to 2 pm and a diameter of 1 to 100 pm.
- the radial clearances between the elevations may be provided in particular for receiving lubricant, so that the lubricant is held in the sliding surface between the two machine elements.
- the coating is at least partially applied to the surface of the machine element by a PVD or PACVD or CVD process.
- the coating is applied by a method according to PVD (Physical Vapor Deposition) or PACVD (Plasma-Assisted Chemical Vapor Depositen) or CVD (Chemical Vapor Deposition).
- PVD Physical Vapor Deposition
- PACVD Plasma-Assisted Chemical Vapor Depositen
- CVD Chemical Vapor Deposition
- the film deposition occurs on the heated surface of the machine element due to a chemical reaction from a gaseous phase. Furthermore, in the PACVD process, the layer deposition takes place, for example, via a plasma excitation of a hydrocarbon-containing gas.
- the coating is preferably at least partially made of amorphous carbon.
- Amorphous carbon is also known by the name DLC (Diamond Like Carbon) or diamond-like carbon.
- the coating is at least partially formed of tetrahedral hydrogen-free amorphous carbon (ta-C).
- DLC has a comparatively high hardness, high chemical resistance and abrasion resistance as well as a low friction coefficient.
- the duration of action of the laser in particular of the laser pulses on the coating to form the surface structure, is in the femtosecond to nanosecond range.
- the pulse duration of the laser is between 100fs and 100ns.
- the wavelength of the laser so matched to the surface of the machine element that evaporation of the material is avoided, so that only the local phase transformation can be done in the Einwirkzone the laser radiation.
- the wavelength to be set depends, in particular, on the material of the machine element and the melting or evaporation temperature of the coating.
- a coating is to be understood as a layer system having at least one layer.
- several layers can also be formed at least partially over one another and / or next to one another.
- Figure 1 is a schematic partial sectional view for illustrating the
- Figure 2 is a schematic perspective view of the machine element according to the invention according to Figure 1
- FIG. 3 shows a schematic plan view of the machine element according to FIG. 1 according to the invention.
- a machine element 2 according to the invention-here only partially illustrated-has a sliding surface 1 which is provided for sliding contact with at least one further machine element (not shown here).
- the machine element 2 has a coating 4, on which a surface structure 3 with a plurality of elevations 7 is formed by means of a laser. The elevations 7 thus form the sliding surface.
- the coating 4 is first applied to a surface of the machine element 2, wherein the coating 4 by a CVD Method is applied to the surface of the machine element 2.
- the coating 4 is formed of tetrahedral hydrogen-free amorphous carbon.
- the surface structure 3 is generated with the elevations 7 by means of laser in the coating 4, wherein the elevations 7 are formed by a local phase transformation of the coating 4 by the laser.
- the coating 4 is heated by the laser to a transition temperature that results in a local phase transformation of the amorphous carbon to graphite, the transition temperature being below the vaporization temperature of both the coating and the material of the machine element 2.
- the elevations 7 have a respective height of 0.02 to 2 pm and a respective diameter of 1 to 100 pm.
- the machine element 2 according to the invention is designed as a bucket tappet.
- a cup tappet end face 6 has the coating 4 made of amorphous carbon and the surface structure 3 on the coating 4 for friction reduction.
- a cup tappet casing surface 5 for friction reduction may further comprise the coating 4 of tetrahedral hydrogen-free amorphous carbon and the surface structure 3 on the coating 4.
- the surface structure 3 was generated by laser by point-to-phase conversion of ta-C to a-C within the coating 4. By a local volume increase of the coating 4 elevations 7 were formed, which reduce the friction on the bucket tappet face 6.
- FIG. 3 shows the arrangement of the surface structure 3 in the plan view of the machine element 2 according to the invention.
- the elevations 7 are arranged radially on the cup tappet end face 6, wherein the elevations 7 cover approximately 25% of the cup tappet end face 6.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Inorganic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Physical Vapour Deposition (AREA)
- Chemical Vapour Deposition (AREA)
- Sliding-Contact Bearings (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017112466.7A DE102017112466A1 (de) | 2017-06-07 | 2017-06-07 | Verfahren zur Herstellung einer Gleitfläche |
| PCT/DE2018/100262 WO2018224073A1 (de) | 2017-06-07 | 2018-03-23 | Verfahren zur herstellung einer gleitfläche |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3635151A1 true EP3635151A1 (de) | 2020-04-15 |
Family
ID=62025642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18718674.7A Ceased EP3635151A1 (de) | 2017-06-07 | 2018-03-23 | Verfahren zur herstellung einer gleitfläche |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11198932B2 (de) |
| EP (1) | EP3635151A1 (de) |
| JP (1) | JP2020516774A (de) |
| CN (1) | CN110709531A (de) |
| DE (1) | DE102017112466A1 (de) |
| WO (1) | WO2018224073A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6793218B2 (ja) * | 2019-04-18 | 2020-12-02 | 株式会社リケン | 摺動部材 |
| DE102020125679A1 (de) | 2020-10-01 | 2022-04-07 | Homag Gmbh | Vorrichtung und Verfahren zur Bearbeitung, insbesondere zur Veredelung, von Oberflächen |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014058720A (ja) * | 2012-09-18 | 2014-04-03 | Toyota Motor Corp | 摺動部材の製造方法 |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6482321A (en) * | 1987-09-24 | 1989-03-28 | Hitachi Ltd | Magnetic recording medium |
| US5980997A (en) | 1996-06-03 | 1999-11-09 | Komag, Incorporated | Method for preparing a substrate for a magnetic disk |
| DE19825860A1 (de) * | 1998-06-10 | 1999-12-16 | Elgan Diamantwerkzeuge Gmbh & | Kolbenring und seine Verwendung |
| ATE229573T1 (de) * | 1998-09-28 | 2002-12-15 | Ruag Munition | Verfahren zur änderung der eigenschaften von werkstückoberflächen |
| JP4263865B2 (ja) | 2002-01-22 | 2009-05-13 | 独立行政法人科学技術振興機構 | 超短パルスレーザーを用いた微細加工方法及びその加工物 |
| CN101160629A (zh) * | 2005-01-06 | 2008-04-09 | 皇家飞利浦电子股份有限公司 | 用于母版制作的方法和母版基板 |
| DE102006029415B4 (de) | 2006-06-27 | 2023-07-06 | Schaeffler Technologies AG & Co. KG | Verschleißfeste Beschichtung sowie Herstellverfahren hierfür |
| JP4960774B2 (ja) | 2007-06-26 | 2012-06-27 | パナソニック株式会社 | Dlc皮膜の加工方法及び電気接点構造 |
| US9551421B2 (en) * | 2009-02-10 | 2017-01-24 | Nok Corporation | Sliding member and process for producing the same |
| DE102009060924B4 (de) | 2009-12-18 | 2017-01-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Herstellungsverfahren für eine Festschmierstoffstruktur eine mit dem Herstellungsverfahren hergestellte Festschmierstoffstruktur sowie Verwendungen |
| DE102011076410A1 (de) * | 2011-05-24 | 2012-11-29 | Schaeffler Technologies AG & Co. KG | Maschinenelement |
| JP5669117B2 (ja) | 2013-11-05 | 2015-02-12 | 国立大学法人豊橋技術科学大学 | Dlc膜の製造方法 |
| WO2015121944A1 (ja) * | 2014-02-13 | 2015-08-20 | 日本アイ・ティ・エフ株式会社 | ピストンリングとその製造方法 |
| DE102015221041A1 (de) * | 2015-01-14 | 2016-07-14 | Schaeffler Technologies AG & Co. KG | Verfahren zur Herstellung einer Gleitfläche an einem Maschinenelement |
-
2017
- 2017-06-07 DE DE102017112466.7A patent/DE102017112466A1/de not_active Withdrawn
-
2018
- 2018-03-23 US US16/616,839 patent/US11198932B2/en not_active Expired - Fee Related
- 2018-03-23 CN CN201880035353.1A patent/CN110709531A/zh active Pending
- 2018-03-23 EP EP18718674.7A patent/EP3635151A1/de not_active Ceased
- 2018-03-23 JP JP2019556198A patent/JP2020516774A/ja active Pending
- 2018-03-23 WO PCT/DE2018/100262 patent/WO2018224073A1/de not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014058720A (ja) * | 2012-09-18 | 2014-04-03 | Toyota Motor Corp | 摺動部材の製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2020516774A (ja) | 2020-06-11 |
| CN110709531A (zh) | 2020-01-17 |
| US11198932B2 (en) | 2021-12-14 |
| DE102017112466A1 (de) | 2018-12-13 |
| US20210292884A1 (en) | 2021-09-23 |
| WO2018224073A1 (de) | 2018-12-13 |
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