EP2480358B1 - Verfahren zur herstellung eines verbundbauteils - Google Patents

Verfahren zur herstellung eines verbundbauteils Download PDF

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Publication number
EP2480358B1
EP2480358B1 EP10759809.6A EP10759809A EP2480358B1 EP 2480358 B1 EP2480358 B1 EP 2480358B1 EP 10759809 A EP10759809 A EP 10759809A EP 2480358 B1 EP2480358 B1 EP 2480358B1
Authority
EP
European Patent Office
Prior art keywords
solid part
joining
punch
powder
solid
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.)
Active
Application number
EP10759809.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2480358A1 (de
Inventor
Rainer Schmitt
Frank Sablotny
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.)
GKN Sinter Metals Holding GmbH
Original Assignee
GKN Sinter Metals Holding GmbH
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 GKN Sinter Metals Holding GmbH filed Critical GKN Sinter Metals Holding GmbH
Publication of EP2480358A1 publication Critical patent/EP2480358A1/de
Application granted granted Critical
Publication of EP2480358B1 publication Critical patent/EP2480358B1/de
Active legal-status Critical Current
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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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • 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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/025—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is transferred into the press chamber by relative movement between a ram and the press chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/027—Particular press methods or systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/34—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses for coating articles, e.g. tablets
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10—Processes characterised by the sequence of their steps
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/12—All metal or with adjacent metals
    • Y10T428/12014—All metal or with adjacent metals having metal particles
    • Y10T428/12028—Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, etc.]
    • Y10T428/12063—Nonparticulate metal component
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31678—Of metal

Definitions

  • the invention relates to the production of a composite component.
  • the object of the present invention is to provide a method by means of which a composite component can be produced quickly and inexpensively.
  • the object is achieved according to the invention by means of a method according to claim 1, a press according to claim 4 and a composite green compact according to claim 5.
  • a method for producing a composite component is proposed, the composite component having at least one powder metallurgical part pressed from a powdery substance and at least one solid part, the powdery substance being pressed into a powder metallurgical part within a working space of a tool of a press and in the same operation , in particular in the same working stroke of the press, the solid part is at least partially fed to the work area, so that the composite component is produced within one work step.
  • a powdery substance is to be understood in particular as a powdered metal.
  • a solid part can have a metal or ceramic material.
  • a solid part can have a cast, drawn, sintered, rolled, forged and / or extruded - in particular extruded - material.
  • One operation of the press comprises a working stroke and a return stroke, the press collapsing during the working stroke and opening again on the return stroke.
  • the operation can also include a downtime, with the press or the tool of the press remaining in one position for a defined time between the working stroke and the return stroke.
  • the solid part in a first step of the operation the solid part is fed to the powdery substance in the work space and in a second step the powdery substance is pressed into a powder-metallurgical part or a green compact.
  • the powdery substance in a first step of the work step the powdery substance is pressed into a green compact in the work area and in a second step the solid part is fed to the green compact in the work area.
  • the solid part is fed to the working space while the powdery substance is pressed into a green compact.
  • green compact is used for an unsintered, powder-metallurgical part pressed from a powdery substance.
  • a powder metallurgical part is generally understood to mean a green compact, a sintered compact and / or a sintered compact.
  • the solid part and the powdery substance can have the same alloy.
  • the powdery substance and the solid part have different alloys.
  • the powdery substance comprises a metal powder and the solid part comprises a non-metallic material, for example ceramic.
  • the powdery substance has a ceramic powder and the solid part has a ceramic or non-ceramic material.
  • a powder metallurgical part can also be understood to mean a component that has a non-metallic material, in particular does not include a metallic material. It is also provided in one embodiment that the solid part and the powdery substance have different metal or ceramic alloys. Alloys can be understood here as metal alloys or ceramic mixtures as well as pure metals or ceramics.
  • the solid part is transferred into the working space in such a way that the solid part protrudes from a surface of the green part or the powder-metallurgical part after the operation.
  • the solid part ends with at least one surface of the powder-metallurgical part.
  • the Solid part protrudes with an oversize from a surface of the powder metallurgical part.
  • the solid part ends with an undersize below a surface of the powder metallurgical part. Oversize or undersize of about 0.001 millimeters to about 15 millimeters, in a further embodiment up to about 20 centimeters are provided.
  • the solid part is surface-treated, preferably before it is placed in the press.
  • a roughness is increased in at least a defined part of the surface.
  • a roughness is to be understood as a third to fifth order deviation in shape for surfaces in accordance with DIN 4760.
  • At least part of the surface of the solid part is particularly preferably oxidized or coated with a conversion layer, for example burnished or phosphated.
  • a metal oxide layer is produced on the solid, in particular metal, part by means of a steam treatment. This is carried out in particular at temperatures of approximately 500 ° C to 570 ° C.
  • the steam treatment of the solid part is preferably carried out for at least 10 minutes, preferably at least 30 minutes.
  • an oxide layer thickness of at least 2 ⁇ m is preferably produced. This has the advantage that the powder particles of the powdery substance can better grip the surface of the solid part.
  • an oxide layer has the advantage that it is reduced again during a sintering process and, in particular, improved sintering between powder particles and solid part can take place.
  • the surface is treated mechanically, for example roughened by grinding or roughing.
  • a variant also provides that the surface is smoothed, for example polished.
  • the composite component is sintered and / or pre-sintered, for example after demolding from the press, in order to carry out further processing steps if necessary.
  • the composite component is sinter-forged.
  • a further idea of the invention comprises a press for pressing and joining a composite component, the press having a working space and at least one press ram and at least one joining ram.
  • the press additionally at least one transfer stamp.
  • a powdery substance is supplied to the work space, a green compact made of the powdery substance being able to be pressed in the work space by means of the press ram.
  • a solid part can be transferred into the working area by means of the joining punch and the transfer punch.
  • the solid part is at least partially fed to the powdery substance or the green compact, with the transfer die in the working space being able to provide a joining space into which the solid part can be transferred with the joining die.
  • the joining space is at least partially defined by the powdery substance introduced into the working space.
  • the press has a control device, the control device controlling a transfer of the solid part into the work space.
  • a computer program product is implemented on the control device that controls the transfer stamp in such a way that it holds a joining space in the working space that is at least partially filled with a powdery substance and into which a solid part is transferred by means of the joining stamp and the transfer stamp.
  • the powdery substance that fills the joining space preferably at least partially adjoins the joining punch and thus the joining space.
  • the powdery substance at least partially fills the joining space, which is preferably not filled by the solid part.
  • the solid part is introduced into the powdery substance by means of the joining punch, the solid part displacing the powdery substance when it is immersed in the powdery substance.
  • a transfer die to keep the joining space free is not necessary.
  • Another concept of the invention comprises a use of the above-mentioned press for an above-mentioned method.
  • the disclosure comprises a computer program product for a press with a tool, the tool having a work space and at least one press die and at least one joining die, a method being implemented in the computer program product with which the joining die is controlled in this way is that this transfers a solid part into a working space that is at least partially filled with a powdery substance.
  • a transfer stamp is controlled in such a way that it is in the working space holds a joining space, which is at least partially filled with a powdery substance, in particular to be pressed, and into which a solid part is transferred by means of the joining punch.
  • the press ram is actuated so that the powdery substance is pressed into a green compact.
  • the press ram is actuated so that the powdery substance is pressed into a green compact.
  • the computer program product preferably controls a pressing process and a joining process at the same time.
  • control is understood to mean both the activation by means of a controller without feedback and the regulation by means of a closed-loop control with feedback.
  • the joining punch and / or the transfer punch is preferably moved by means of a route control or a route control.
  • the press ram is controlled in such a way that it applies a predetermined force to the powdery substance or performs a predetermined work on the powdery substance.
  • the specifications are determined, for example, by a user or fitter of the press, preferably as a function of properties that the green compact or the composite green compact should have.
  • a ram is moved by means of a route control or route regulation.
  • a further concept of the invention comprises a composite component produced by the method having at least one green compact pressed from a powdery substance and at least one solid part.
  • the powdery substance and the solid part have the same alloy.
  • the powder metallurgical part has a shrinkage during sintering which is greater than or equal to a shrinkage of the solid part, the solid part generally not shrinking during sintering.
  • shrinkage of the powder-metallurgical part during sintering is greater than that of the solid part, preferably such that the powder-metallurgical part enters into a press fit with the solid part.
  • the solid part enters into a material connection with the powder-metallurgical part during sintering and is preferably sintered at the interfaces.
  • the solid part has a thread via which the solid part and the metallurgical part enter into a form-fitting connection.
  • the solid part can be designed with an external thread, thus a fully sintered Component from a composite component, for example, without a further processing step a thread.
  • different geometries are provided for the solid part.
  • the solid part can be designed as a sheet metal, pin, bolt, pin, shaft, nut, threaded rod, feather key and / or bearing.
  • any geometry that can be fed to the powdery substance or the powder-metallurgical part is preferably suitable. It is also provided in one embodiment that several solid parts are arranged in a composite component. Another variant provides that at least one solid part is arranged in more than one powder-metallurgical part and in particular connects these.
  • a composite component produced and sintered according to the invention has both the advantages of a solid part, which in particular can be an inexpensive purchased part, and the advantages of a sintered part. If the composite component is manufactured using the method described above, the manufacturing costs are significantly lower and the bond between the solid part and the powder-metallurgical part is significantly more reliable than in the case of methods known from the prior art, especially in the case of subsequently introduced solid parts.
  • Fig. 1 shows a sequence of process steps A to D, in which a solid part 1 is connected to a powder-metallurgical part 2 in order to form a composite component 3.
  • a solid part 1 is inserted into the tool 5 of a press via an automatic feeder 4.
  • the press is simplified here, represented by the tool 5 for the sake of clarity.
  • a powdery substance 7 is poured into a working space 6 of the tool 5.
  • a transfer stamp 8.1 keeps a joining space 9 free in the working space 6, which is at least partially filled with the powdery substance 7.
  • step B a first press ram 10.1 and a second press ram 10.2 are closed so that the powdery substance 7 is compressed. Furthermore, the solid part 1 is simultaneously transferred into the powdery substance 7 by means of the transfer stamp 8.1 and the joining stamp 8.2. Pressure is exerted on the solid part 1 by the transfer die 8.1 and the joining die 8.2 in order to hold the solid part 1.
  • the solid part 1 is preferably not plastically deformed by the pressure, further preferably the solid part is elastically deformed by less than 0.5% of its expansion in the direction of force by the pressure.
  • step C of the Fig. 1 the transfer of the solid part 1 and the compaction of the powdery substance 7 to form a non-sintered powder-metallurgical part 2 - hereinafter referred to as green compact 2 - is completed.
  • the transfer and / or the compression of the powdery material is controlled or regulated via a route control or regulation.
  • step D of the Fig. 1 the finished composite component 3 is removed from the mold. Processing or sintering of the composite component can now take place in further steps.
  • the sintered composite component is at least partially calibrated.
  • step B that is, when the solid part 1 is transferred into the powdery substance 7, no or only an insignificant compression of the powdery substance 7 is carried out.
  • An insignificant compression is to be understood as a compression which is below about 80%, preferably below about 60% of the targeted density of the green compact 2.
  • Fig. 2 shows a further variant for the production of a composite green body 3, in which in a first step E a solid part 1 is fed to a press 5 and a powdery substance 7 is filled into the working space 6.
  • a second step F the powdery substance 7 is compacted to form a green compact 2; in particular, the substance 7 is compacted to about 60% to 100% of the targeted density of the green compact 2 in step F.
  • the solid part 1 is transferred into the green compact 2, the compression of the green compact 2 being interrupted in one embodiment. In a further embodiment, the solid part 1 is supplied during a compression of the green compact 2 or after a desired compression of the green compact 2.
  • step G a final compression of the green compact 2 is carried out if this has not yet been carried out in step F. Furthermore, a transfer of the solid part 1 into the green compact 2 is ended.
  • the finished composite component 3 is removed from the mold in the last step H by, for example, the transfer stamp 8.1 pushing the composite component out of the working space 6.
  • the ram 10.1 transports the composite component out of the working space 6.
  • a die 11 delimiting the working space 6 is displaced in such a way that the composite component is exposed and can be removed from the press.
  • Fig. 3 shows an etched micrograph of a sintered composite component 3 having a burnished threaded pin 12, around which a powder-metallurgical part 2 was pressed.
  • the threaded pin 12 was not blasted bright before joining. It can be seen that the powdery substance 7 penetrated into the thread turns of the threaded pin 12 as a result of the pressing process of the green compact and thus a dimensionally stable connection was established between the threaded pin and the powder-metallurgical part.
  • Fig. 4 shows a micrograph of a steel pin 13 pressed into a powder metallurgical part 2.
  • the composite component was sintered at 1250 ° Celsius. Sintering across grains cannot be recognized, but this type of joint means that there is excellent mechanical contact between the powder-metallurgical part 2 and the steel pin 13.
  • Fig. 5 shows various schematic, non-restrictive configurations of a composite component 3.
  • the geometries of the solid part 1 and / or the powder-metallurgical part 2 can differ from the configurations shown here.
  • the respective upper sectional view of the respective configuration is a section through a diameter D of the composite component 3.
  • Design I shows the solid part 1 protruding on one side over the powder-metallurgical part 2.
  • embodiment J it can be seen that the solid part 1 projects beyond the powder-metallurgical part 2 on both sides.
  • the embodiment K shows a composite component 3 with three solid parts 1, whereby the embodiment shown here is not to be interpreted restrictively, rather it is provided in further variants that two solid parts 1 are provided. Another embodiment provides more than three solid parts 1 in the composite component 3.
  • Embodiment L shows a threaded pin 12 which has been pressed into a powder metallurgical part 2.
  • a nut 14 introduced into the powder metallurgical part 2 emerges from variant M.
  • any geometry of the solid part with an internal thread is introduced into the powder-metallurgical part.
  • a commercially available nut, for example a hexagon nut, is preferably introduced into the powder-metallurgical part.
  • Embodiment N shows a stamped part 15 pressed into the powder metallurgical part 2.
  • a cast, forged or sintered solid part 1 is introduced into the powder metallurgical part 2.
  • a composite component 3 can be seen in which a solid part 1 protrudes on a surface 16 orthogonally to a pressing direction of the green compact 2.
  • Another variant P provides that two powder metallurgical parts 2 are pressed in one operation and connected by means of at least one solid part 1.
  • Variant Q shows a composite component 3, the solid part 1 of which does not completely penetrate the powder-metallurgical part 2. This can be achieved in particular if the solid part 1 is transferred into the powdery substance without a joining space being kept free. The solid part 1 thus displaces the powdery substance when it is joined.
  • the solid part 1 is at least in one end area 17, which is inserted into the powdery substance, is at least partially tapered in order to promote a displacement of the powdery substance.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Forging (AREA)
EP10759809.6A 2009-09-23 2010-09-08 Verfahren zur herstellung eines verbundbauteils Active EP2480358B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009042603A DE102009042603A1 (de) 2009-09-23 2009-09-23 Verfahren zur Herstellung eines Verbundbauteils
PCT/EP2010/005524 WO2011035858A1 (de) 2009-09-23 2010-09-08 Verfahren zur herstellung eines verbundbauteils

Publications (2)

Publication Number Publication Date
EP2480358A1 EP2480358A1 (de) 2012-08-01
EP2480358B1 true EP2480358B1 (de) 2021-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10759809.6A Active EP2480358B1 (de) 2009-09-23 2010-09-08 Verfahren zur herstellung eines verbundbauteils

Country Status (8)

Country Link
US (1) US20120214014A1 (enrdf_load_stackoverflow)
EP (1) EP2480358B1 (enrdf_load_stackoverflow)
JP (1) JP2013505359A (enrdf_load_stackoverflow)
CN (1) CN102770222B (enrdf_load_stackoverflow)
DE (1) DE102009042603A1 (enrdf_load_stackoverflow)
ES (1) ES2887337T3 (enrdf_load_stackoverflow)
IN (1) IN2012DN03052A (enrdf_load_stackoverflow)
WO (1) WO2011035858A1 (enrdf_load_stackoverflow)

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JP5601578B2 (ja) * 2010-10-29 2014-10-08 日立化成株式会社 微小部品の成形金型装置
JP5859796B2 (ja) * 2011-10-06 2016-02-16 Ｏｐｐｃ株式会社 電子部品の粉末成型装置
DE102012017040A1 (de) * 2012-08-29 2014-03-27 Gkn Sinter Metals Holding Gmbh Verfahren zur Herstellung eines Verbundbauteils sowie ein Verbundbauteil
CN102974824A (zh) * 2012-11-22 2013-03-20 宁波得利时泵业有限公司 一种均质混合泵的定子和转子制备方法
CN102974830A (zh) * 2012-11-22 2013-03-20 宁波得利时泵业有限公司 一种凸轮转子泵的泵体结构制备方法
DE102013015677A1 (de) * 2013-09-23 2015-03-26 Gkn Sinter Metals Holding Gmbh Verfahren zur Herstellung eines Sinterteils mit hochgenauer radialer Präzision sowie Teilesatz mit Sinterfügeteilen
DE102013111134A1 (de) * 2013-10-08 2015-04-09 Linde Hydraulics Gmbh & Co. Kg Verfahren zur Herstellung einer Lagermetallschicht an einer Zylindertrommel einer hydrostatischen Verdrängermaschine
JP5948715B2 (ja) * 2014-03-17 2016-07-06 住友電工焼結合金株式会社 組み合わせ部品及びその製造方法と成形金型
US10596631B2 (en) * 2015-04-10 2020-03-24 Gkn Sinter Metals, Llc Method of forming a composite component using post-compaction dimensional change
DE102015207748A1 (de) 2015-04-28 2016-11-03 Gkn Sinter Metals Engineering Gmbh Fluidpumpe
DE102016103051A1 (de) 2016-02-22 2017-08-24 Gkn Sinter Metals Engineering Gmbh Pumpenanordnung
DE102016123580B4 (de) 2016-12-06 2021-09-09 Gkn Sinter Metals Engineering Gmbh Rotorteil eines Rotors für einen Nockenwellenversteller und Presswerkzeug zu dessen pulvermetallurgischer Herstellung
DE102016125406A1 (de) * 2016-12-22 2018-06-28 Gkn Sinter Metals Engineering Gmbh Matrize für eine Presse
DE102017130680B4 (de) * 2017-12-20 2019-07-11 Gkn Sinter Metals Engineering Gmbh Matrize für eine Presse sowie Verfahren zur Herstellung mindestens eines Grünlings mit einer solchen Presse
CN109093123A (zh) * 2018-09-12 2018-12-28 北京恒源天桥粉末冶金有限公司 一种组合式滤芯的制备方法
DE102019128350A1 (de) * 2019-10-21 2021-04-22 Gkn Sinter Metals Engineering Gmbh Verfahren zur Herstellung eines kalibrierten Teileverbunds

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DE102009042603A1 (de) 2011-03-24
WO2011035858A9 (de) 2011-06-30
IN2012DN03052A (enrdf_load_stackoverflow) 2015-07-31
EP2480358A1 (de) 2012-08-01
JP2013505359A (ja) 2013-02-14
CN102770222A (zh) 2012-11-07
CN102770222B (zh) 2016-06-29
WO2011035858A1 (de) 2011-03-31
US20120214014A1 (en) 2012-08-23
ES2887337T3 (es) 2021-12-22

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