WO2018077340A1 - Procédé et installation de fabrication d'une garniture de friction en métal fritté - Google Patents

Procédé et installation de fabrication d'une garniture de friction en métal fritté Download PDF

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Publication number
WO2018077340A1
WO2018077340A1 PCT/DE2017/100890 DE2017100890W WO2018077340A1 WO 2018077340 A1 WO2018077340 A1 WO 2018077340A1 DE 2017100890 W DE2017100890 W DE 2017100890W WO 2018077340 A1 WO2018077340 A1 WO 2018077340A1
Authority
WO
WIPO (PCT)
Prior art keywords
sintered metal
friction lining
laser sintering
metal powder
friction
Prior art date
Application number
PCT/DE2017/100890
Other languages
German (de)
English (en)
Inventor
Christian Spandern
Tobias LAREM
Andreas KIMMIG
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2018077340A1 publication Critical patent/WO2018077340A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B22F7/08—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools with one or more parts not made from powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/20—Direct sintering or melting
    • B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y10/00—Processes of additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc brakes
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D69/00—Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces
    • F16D69/02—Composition of linings ; Methods of manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/005—Article surface comprising protrusions
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D13/00—Friction clutches
    • F16D13/58—Details
    • F16D13/60—Clutching elements
    • F16D13/64—Clutch-plates; Clutch-lamellae
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0004—Materials; Production methods therefor metallic
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2200/00—Materials; Production methods therefor
    • F16D2200/0082—Production methods therefor
    • F16D2200/0086—Moulding materials together by application of heat and pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the invention relates to a method and a system for producing a friction lining made of sintered metal.
  • German Published Patent Application DE 1 189 814 A discloses a sintered friction body made of iron powder and graphite particles. From the German translation DE 690 10 669 T2 of the European patent EP 0 455 695 B1 friction linings are known, which are formed of a metal-ceramic material or of sintered metal. The known friction linings can be attached to support plates by welding or brazing. The object of the invention is to simplify the production of a friction lining made of sintered metal.
  • the object is achieved in a method for producing a friction lining made of sintered metal in that the friction lining of sintered metal is formed by laser sintering.
  • the friction lining made of sintered metal is, for example, a
  • the method of laser sintering per se is known, for example, from the German translation DE 691 20 544 T2 of the European patent EP 0 556 291 B1, the German translation DE 690 31 808 T2 of the European patent EP 0 714 725 B1, the German translation DE 37 51 818 T2 of European Patent EP 0 538 244 B1, German Translation DE 694 09 669 T2 of European Patent EP 0 731 743 B1 and German Patent DE 44 10 046 C1 and DE 44 10 046 C2.
  • a preferred embodiment of the method is characterized in that the friction lining made of sintered metal is built up in layers by laser sintering.
  • the layered structure of the friction lining made of sintered metal is based on a three-dimensional CAD model.
  • a layer of the metal powder and then melted by the laser.
  • the next layer of metal powder is then applied to the cooled and correspondingly solidified layer.
  • the layer thickness of the layers is, for example, one to two hundred micrometers.
  • a further preferred exemplary embodiment of the method is characterized in that a connecting layer is applied to a friction lining carrier before the friction lining made of sintered metal is formed by laser sintering.
  • the tie layer may be applied to the friction lining carrier in a conventional manner.
  • the connection layer can also be applied by laser sintering.
  • the connecting layer is preferably formed of a different material than the friction lining.
  • a further preferred embodiment of the method is characterized in that a sintered metal powder is applied directly to the friction lining carrier and melted by laser sintering.
  • laser sintering it is advantageously possible to dispense with presses, press molds, ovens and possibly also a finishing of the friction linings.
  • the sintered metal powder layer applied directly to the friction lining carrier it is firmly connected to the friction lining carrier. This provides, inter alia, the advantage that a subsequent riveting or soldering of the friction lining on or on the friction lining carrier can be omitted.
  • Another preferred exemplary embodiment of the method is characterized in that the sintered metal powder is applied in layers to the friction lining carrier and is melted by laser sintering in a predetermined pattern in order to depict depressions and / or grooves in the friction lining made of sintered metal.
  • the sintered metal powder is applied in layers to the friction lining carrier and is melted by laser sintering in a predetermined pattern in order to depict depressions and / or grooves in the friction lining made of sintered metal.
  • a further preferred exemplary embodiment of the method is characterized in that the friction lining is formed by laser sintering from a sintered metal mixture based on a metal alloy.
  • the metal alloy on which the sintered metal mixture is based is, for example, a bronze alloy or an iron alloy.
  • the sintered metal mixture used can advantageously be relatively easily varied during laser sintering of the friction lining. As a result, advantageously small batches can be produced economically.
  • a further preferred embodiment of the method is characterized in that the friction lining is formed by laser sintering of a sintered metal mixture with additives. By means of suitable additives, the properties of the friction lining made of sintered metal can advantageously be varied, in particular adjusted.
  • the above object is alternatively or additionally solved by a system for producing a friction lining made of sintered metal, in particular according to a method described above, with a device for coating layers of sintered metal powder on at least one friction lining and with a laser device for laser sintering the sintered metal powder applied in layers the friction lining carrier.
  • a system for producing a friction lining made of sintered metal in particular according to a method described above, with a device for coating layers of sintered metal powder on at least one friction lining and with a laser device for laser sintering the sintered metal powder applied in layers the friction lining carrier.
  • friction linings made of sintered metal can be produced particularly advantageously for small series.
  • the system can be used to produce prototypes of sintered metal friction linings. In this case, it is particularly advantageous to use different sintered metal powders, optionally with different additives, for example for test purposes.
  • a preferred embodiment of the plant is characterized in that the device for the layered application of sintered metal powder comprises a receptacle for at least one Reibbelag uman which is lowered relative to a surface over which sintered metal powder is fed.
  • the friction lining carrier is advantageously lowered before the application of the sintered metal powder, in particular by a height corresponding to a layer thickness to be generated.
  • the sintered metal powder for example, with a doctor blade, evenly distributed on the Reibbelag uman in the recording.
  • the sintered metal powder is melted by means of the laser device. In this case, a laser beam, possibly in a defined pattern, is moved over the sintered metal powder layer.
  • the friction lining carrier After a certain cooling time, the friction lining carrier is lowered by a further layer thickness. Then, the process is repeated with the application and melting of the sintered metal powder.
  • a friction lining made of sintered metal powder with a desired layer thickness can be built up successively.
  • a further preferred embodiment of the system is characterized in that the shape of the receptacle for the friction lining carrier is adapted to the shape of the friction lining carrier.
  • the friction lining carrier has, for example, essentially the shape of a circular disk.
  • Radial inside or radially outside of the friction lining can be provided with a driving structure, which is designed for example as internal teeth or as external teeth.
  • the driving structure serves to represent a rotationally fixed connection between the friction lining carrier and a further element, for example a plate carrier of a friction clutch designed as a multi-plate clutch.
  • the invention further relates to a motor vehicle engine element, in particular a friction clutch or a brake, with at least one friction lining made of sintered metal, which is produced by laser sintering according to a previously described method, in particular with a previously described system.
  • the friction clutch can be a simple clutch or a double clutch that is manually or automatically operated.
  • the invention relates to sintered metal friction linings.
  • the sintered metal friction linings are formed by laser sintering of sintered metal.
  • the friction lining is made of the sintered metal built up in layers by laser sintering.
  • laser sintering the friction lining is particularly advantageous applied directly to a friction lining. As a result, a stable attachment of the friction lining to the friction lining carrier is achieved in a simple manner.
  • the friction lining carrier with the friction lining made of sintered metal is, for example, a friction plate, which can also be referred to as a friction part.
  • Friction blades are preferably designed as inner disks or as outer disks and arranged in a disk set of a multi-plate clutch.
  • the inner disks and the outer disks essentially have the shape of annular disks with rectangular ring cross sections.
  • Each of the inner disks comprises a friction lining carrier shortened also referred to as a lining carrier, which is also referred to as a carrier element, and to which two friction linings are preferably attached.
  • the lining carriers are formed, for example, from a steel material.
  • the lining carrier or carrier elements are also referred to as carrier plates.
  • the friction linings are formed from a suitable sintered metal.
  • the inner disks with their friction linings can be brought into contact with the outer disks.
  • an inner disk is arranged with the lining carrier and the friction linings in an axial direction between two outer disks.
  • the term axial refers to a rotation axis of the disk set. Axial means in the direction or parallel to the axis of rotation. Analog means radially transversely to the axis of rotation.
  • the pad carrier radially inward or radially outwardly each have a coupling region.
  • the coupling regions of the lining carriers are designed, for example, as internal toothing or external toothing.
  • a plant for producing a friction lining made of sintered metal by means of the laser sintering process comprises a device for the layered application of sintered metal powder on at least one Reibbelagashi.
  • the friction lining carrier is advantageously arranged lowerable in or to a surface of the device.
  • Sintered metal powder is applied to the friction lining carrier over the surface of the device or with a further device from above and distributed uniformly on the surface of the friction lining carrier, for example with the aid of a doctor blade.
  • the system for producing the friction lining made of sintered metal further comprises a laser device for laser sintering. With the laser device, the sintered metal powder applied in layers to the friction lining carrier is melted. This results in a firm connection between a first sintered metal powder layer and the friction lining carrier.
  • the first layer or the first layers which is or are produced on the friction lining carrier during laser sintering, can or may essentially have the shape of a circular ring disk. As a result, a stable attachment layer for fastening the friction lining from the sintered metal to the friction lining carrier is achieved in a simple manner.
  • the entire surface of the friction lining carrier is advantageously not scanned or scanned with the laser device.
  • the laser device For showing grooves in almost In any desired shape defined areas are not selectively melted with the laser device.
  • the unmelted sintered metal powder is removed, if appropriate before the application of a further sintered metal powder layer, for example with the aid of a suitable suction device.
  • the removed sintered metal powder may optionally be reused.
  • a desired groove geometry can be produced in the friction lining made of sintered metal starting from a desired friction lining layer thickness by moving or scanning the sintered metal powder surface with the laser device in a specific pattern. Any groove geometries and / or groove depths in the friction lining made of sintered metal can be produced with the laser device.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Composite Materials (AREA)
  • Braking Arrangements (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une garniture de friction en métal fritté. L'invention est caractérisée en ce que la garniture de friction en métal fritté est formée par frittage par laser.
PCT/DE2017/100890 2016-10-27 2017-10-17 Procédé et installation de fabrication d'une garniture de friction en métal fritté WO2018077340A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016221219.2A DE102016221219A1 (de) 2016-10-27 2016-10-27 Verfahren und Anlage zum Herstellen eines Reibbelags aus Sintermetall
DE102016221219.2 2016-10-27

Publications (1)

Publication Number Publication Date
WO2018077340A1 true WO2018077340A1 (fr) 2018-05-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100890 WO2018077340A1 (fr) 2016-10-27 2017-10-17 Procédé et installation de fabrication d'une garniture de friction en métal fritté

Country Status (2)

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DE (1) DE102016221219A1 (fr)
WO (1) WO2018077340A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110548875A (zh) * 2019-10-16 2019-12-10 江苏微纳激光应用技术研究院有限公司 一种异质金属材料3d打印方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189814B (de) 1956-03-21 1965-03-25 S K Wellman Company Gesinterter Reibkoerper aus Eisenpulver und Graphitteilchen
EP0455694B1 (fr) 1989-01-27 1994-07-13 Automotive Products Plc Materiau de garniture de friction et ensemble de support
DE4410046C1 (de) 1994-03-23 1995-05-24 Eos Electro Optical Syst Verfahren und Material zum Herstellen eines dreidimensionalen Objekts durch Sintern
EP0538244B1 (fr) 1986-10-17 1996-05-22 Board Of Regents, The University Of Texas System Procédé et installation de production d'ébauches par frittage sélectif
EP0556291B1 (fr) 1990-11-09 1996-06-26 Dtm Corporation Appareil de frittage selectif au laser a chauffe radiante
EP0714725B1 (fr) 1989-09-05 1997-12-10 The Board Of Regents, The University Of Texas System Ensemble comprenant plusieurs matériaux, manipulation permettant le frittage par rayonnement sélectif
DE69031808T2 (de) 1989-09-05 1998-04-02 Univ Texas Mehrmaterialsysteme zum Sintern mit selektiver Strahlung unter Anwendung von Pulver
EP0731743B1 (fr) 1993-10-20 1998-04-15 United Technologies Corporation Frittage par laser a temperature regulee
WO2015159209A1 (fr) * 2014-04-15 2015-10-22 Ferdiam S.R.L. Élément de freinage pour système de freinage, et procédé de fabrication de cet élément
US20160223041A1 (en) * 2013-09-13 2016-08-04 Railway Technical Research Institute Brake disc and manufacturing method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8901778D0 (en) 1989-01-27 1989-03-15 Univ Court Of The University O Manipulatory technique

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1189814B (de) 1956-03-21 1965-03-25 S K Wellman Company Gesinterter Reibkoerper aus Eisenpulver und Graphitteilchen
DE3751818T2 (de) 1986-10-17 1996-09-26 Univ Texas Verfahren und Vorrichtung zur Herstellung von gesinterten Formkörpern durch Teilsinterung
EP0538244B1 (fr) 1986-10-17 1996-05-22 Board Of Regents, The University Of Texas System Procédé et installation de production d'ébauches par frittage sélectif
EP0455694B1 (fr) 1989-01-27 1994-07-13 Automotive Products Plc Materiau de garniture de friction et ensemble de support
DE69010669T2 (de) 1989-01-27 1994-11-17 Automotive Products Plc Reibbelag und belagträgerscheibe.
DE69031808T2 (de) 1989-09-05 1998-04-02 Univ Texas Mehrmaterialsysteme zum Sintern mit selektiver Strahlung unter Anwendung von Pulver
EP0714725B1 (fr) 1989-09-05 1997-12-10 The Board Of Regents, The University Of Texas System Ensemble comprenant plusieurs matériaux, manipulation permettant le frittage par rayonnement sélectif
EP0556291B1 (fr) 1990-11-09 1996-06-26 Dtm Corporation Appareil de frittage selectif au laser a chauffe radiante
DE69120544T2 (de) 1990-11-09 1996-10-31 Dtm Corp Selektive lasersintereinrichtung mit strahlungsheizung
EP0731743B1 (fr) 1993-10-20 1998-04-15 United Technologies Corporation Frittage par laser a temperature regulee
DE69409669T2 (de) 1993-10-20 1998-08-06 United Technologies Corp Temperaturgesteuertes lasersintern
DE4410046C1 (de) 1994-03-23 1995-05-24 Eos Electro Optical Syst Verfahren und Material zum Herstellen eines dreidimensionalen Objekts durch Sintern
DE4410046C2 (de) 1994-03-23 2000-11-30 Eos Electro Optical Syst Verfahren und Material zum Herstellen eines dreidimensionalen Objekts durch Sintern
US20160223041A1 (en) * 2013-09-13 2016-08-04 Railway Technical Research Institute Brake disc and manufacturing method thereof
WO2015159209A1 (fr) * 2014-04-15 2015-10-22 Ferdiam S.R.L. Élément de freinage pour système de freinage, et procédé de fabrication de cet élément

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110548875A (zh) * 2019-10-16 2019-12-10 江苏微纳激光应用技术研究院有限公司 一种异质金属材料3d打印方法

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