EP1731246B1 - Appareil pour la fabrication d'une diversité des objets moulés de poudre. - Google Patents

Appareil pour la fabrication d'une diversité des objets moulés de poudre. Download PDF

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Publication number
EP1731246B1
EP1731246B1 EP06008152A EP06008152A EP1731246B1 EP 1731246 B1 EP1731246 B1 EP 1731246B1 EP 06008152 A EP06008152 A EP 06008152A EP 06008152 A EP06008152 A EP 06008152A EP 1731246 B1 EP1731246 B1 EP 1731246B1
Authority
EP
European Patent Office
Prior art keywords
die
specified
extrusion
powder
base body
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.)
Not-in-force
Application number
EP06008152A
Other languages
German (de)
English (en)
Other versions
EP1731246A1 (fr
Inventor
Norbert Nies
Walter Solty
Bernd Horn
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.)
SMS Group GmbH
Original Assignee
SMS Meer 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 SMS Meer GmbH filed Critical SMS Meer GmbH
Priority to PL06008152T priority Critical patent/PL1731246T3/pl
Publication of EP1731246A1 publication Critical patent/EP1731246A1/fr
Application granted granted Critical
Publication of EP1731246B1 publication Critical patent/EP1731246B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B30B11/04—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 co-operating with a fixed mould
    • 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
    • B22F2003/033—Press-moulding apparatus therefor with multiple punches working in the same direction

Definitions

  • the invention relates to an apparatus for producing a molded part from powder, in particular from metal powder, from a doughy material containing a powder, from a flowable material containing a powder or from pre-pressed material, comprising a die consisting of a base body and one in this used Matrizenhülse consists, at least two concentrically arranged, hollow cylindrical parts and forms at least one molding surface for the molding, at least one ram that can enter into an opening defined by the Matrizenhülse in a pressing direction and compress material located in the Matrizenhülse, and means , with which the at least two parts of the die sleeve in the pressing direction are displaceable relative to each other.
  • Such devices are by the JP 09176701 A . US 5,364,253 A or US 3,524,220 A and in the arrangement with a stationary die sleeve and a relative to this relatively displaceable additional ram, which dips into the mold space through which JP 63154299 A known.
  • a plurality of punches are used, which can move in an axial direction.
  • the punches can dive into an axially closed on one side mold or come in an axially open in both directions die from both axial directions. Occasionally, through mandrel rods are used, but primarily have no compression function, but a positive displacement function.
  • the punches can also dip laterally into the die to create undercuts or other geometric shapes. To demould the molded part, these radially dipping punch are withdrawn so far that the demolding is not hindered.
  • the die usually consists of a die ring (matrix base body) and a die bushing or sleeve inserted therein with the workpiece contour.
  • WO 02/32655 A1 From the WO 02/32655 A1 is a powder press tool is known, which is provided that it is formed in a Auspressabites so that the Auspresskanal supporting die walls are becoming increasingly thin. By thinning walls in this area, a gradually increasing compliance of the tool is achieved, whereby the demolding is to be facilitated.
  • a pressing device for powdery and granular material in which two matrices whose end faces include the contour of the, form part by guides form an angle, wherein the surfaces of the end faces of the matrices when reaching the final contour of the molding directly close to each other.
  • the invention is therefore the object of a device of the type mentioned in such a way that a high degree of freedom in the production of molded parts is created, with a very compact design should be possible, which is optionally also suitable to convert existing devices.
  • a refinement provides that the part which is fixedly arranged in the main body bears against the cylindrical inner surface of the displaceably arranged part by means of a section of its cylindrical outer surface.
  • the means for displacing the at least one part of the die sleeve can be designed as a hydraulic piston-cylinder system.
  • the cylinder of the piston-cylinder system is preferably designed as an annular groove in the main body of the die.
  • one end of the die sleeve is closed with a plate.
  • a plate In this case, only one side enters a punch in the Matrizenhülse.
  • the plate is determined with advantage on the displaceably arranged part of the die sleeve.
  • the pressing die may consist of a plurality of preferably concentric hollow cylindrical parts. It can have a centrally arranged rod.
  • the die sleeve is equipped with an integrated possibility of movement, with the pressure can be applied in stages to the introduced into the die sleeve powder.
  • inventively created further press axis increases the design possibilities in the production of powder pressed parts.
  • Fig. 1 schematically a device is shown, with which a metal powder 15 can be pressed into a molded part.
  • the device has a die 1, which consists of a hollow cylindrical base body 2, into which a die sleeve 3 is coaxially inserted. So that the die sleeve 3 is highly resistant to wear, it preferably consists of hard metal.
  • the die sleeve 3 defines a cylindrical molding surface 4.
  • the metal powder 15 is introduced into the space formed by this molding surface.
  • Both from above and from below can then ever a ram 5 are inserted into the respective openings of the die sleeve 3 in the pressing direction P and axially moved towards each other. In this case, a pressing force F p is exerted on the punches 5, so that the powder 15 is compressed.
  • the device is not only suitable for the processing of powder. Frequently, an already preformed compact is re-pressed in a further step, especially in the final pressing at higher pressures, which is a particularly important application of the device according to the invention and the corresponding method.
  • a die 1 together with a ram 5 is shown.
  • the die 1 has a base body 2, in which a two-part die sleeve 3 is inserted.
  • the die sleeve 3 consists of the two hollow cylindrical parts 6 and 7. While the part 6 is firmly fixed in the base body 2, the other part 7 of the die sleeve 3 is mounted displaceably in the pressing direction P.
  • the two parts 6 and 7 of the die sleeve 3 have radially inwardly facing forming surfaces 4, which define the outer contour of the compact to be formed.
  • the shape of the compact is further determined by a plate 12 arranged on the front side on the movable part 7 of the die sleeve 3. Furthermore, its shape results from the press die 5 to be inserted from below into the die sleeve 3.
  • the press ram 5 consists of a plurality of concentrically arranged sleeves 13, 13 ', 13 ", ..., from whose axial relative position the shape of the compact results correspondingly. [... Die]
  • the sleeves 13, 13', 13", ... are concentric arranged to a rod 14.
  • the ram 5 is acted upon by a non-illustrated movement element with the pressing force F P.
  • the displaceable part 7 of the die sleeve 3 with a cylindrical inner surface 10 surrounds the cylindrical outer surface 9 of the part 6 stationarily arranged in the die sleeve 3. Both cooperating surfaces 9, 10 are tolerated so that a displaceability of both parts 6 , 7 is possible, yet there is only the smallest possible gap between the two parts.
  • the movement of the displaceable part 7 of the die sleeve 3 relative to the stationarily arranged part 6 takes place by means 8, which are designed as a hydraulic piston-cylinder system.
  • an annular groove 11 is incorporated in the base body 2 of the die 1, which serves as a cylinder for an inserted annular piston 16.
  • the cylinder 11 communicates with two fluid lines 17 and 18, via which controlled or controlled hydraulic oil can be entered into the cylinder chamber to the piston 16 controlled or to move in a desired relative position to the cylinder 11, whereby the part 7 accordingly is positioned.
  • the maximum displacement of the part 7 relative to the part 6 of the die sleeve 3 is indicated by x.

Claims (8)

  1. Dispositif de fabrication d'une pièce moulée en poudre, notamment en poudre métallique, à partir d'un matériau pâteux, contenant une poudre, à partir d'un matériau coulant, contenant une poudre ou à partir d'un matériau prépressé, lequel présente :
    - une matrice (1), qui est constituée d'un corps de base (2) et d'un cylindre de matrice (3) inséré dans celui-ci, qui présente au moins deux parties (6,7) cylindriques creuses, disposées concentriquement l'une par rapport à l'autre et forme au moins une surface de moule (4) pour la pièce moulée,
    - au moins un poinçon de pressage (5), qui entre dans une ouverture définie à travers le cylindre de matrice (3) dans une direction de pressage (P) et peut compacter le matériau se trouvant dans le cylindre de matrice (3), et
    - dans lequel des moyens (8) sont prévus, avec lesquels au moins deux parties (6,7) du cylindre de matrice (3) peuvent être déplacées l'une par rapport à l'autre dans la direction de pressage (P),
    caractérisé en ce que
    au moins deux parties (6,7) du cylindre de matrice (3) possèdent des surfaces de moule (4) dirigées radialement vers l'intérieur, qui définissent le contour extérieur des objets pressés à façonner, dans lequel la partie (6) est disposée de manière fixe dans le corps de base (2) et à l'intérieur de la partie (7) déplaçable dans la direction de pressage (P).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la partie (6) disposée de manière stationnaire dans le corps de base (2) vient reposer par une partie de sa surfaces extérieure (9) cylindrique sur la surface intérieure (10) cylindrique de la partie (7) disposée de manière déplaçable.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    les moyens (8) pour déplacer au moins une partie (7) du cylindre de matrice (3) sont configurés comme un système cylindre/piston hydraulique.
  4. Dispositif selon la revendication 3,
    caractérisé en ce que
    le cylindre (11) du système cylindre/piston est configuré comme une rainure annulaire dans le corps de base (2) de la matrice (1).
  5. Dispositif selon une des revendications 1 à 4,
    caractérisé en ce que
    une extrémité du cylindre de matrice (3) est obturée par une plaque (12).
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    la plaque (12) est immobilisée sur la partie (7) disposée de manière déplaçable du cylindre de matrice (3) .
  7. Dispositif selon une des revendications 1 à 6,
    caractérisé en ce que
    le poinçon de pressage (5) est constitué de plusieurs parties (13,13,',13") cylindriques creuses, disposées concentriquement.
  8. Dispositif selon la revendication 7,
    caractérisé en ce que
    le poinçon de pressage (5) présente une tige (14) disposée centralement.
EP06008152A 2005-06-11 2006-04-20 Appareil pour la fabrication d'une diversité des objets moulés de poudre. Not-in-force EP1731246B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06008152T PL1731246T3 (pl) 2005-06-11 2006-04-20 Urządzenie do wytwarzania różnorodnych kształtek z proszku

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005027032A DE102005027032B4 (de) 2005-06-11 2005-06-11 Vorrichtung zum Herstellen eines Formteils

Publications (2)

Publication Number Publication Date
EP1731246A1 EP1731246A1 (fr) 2006-12-13
EP1731246B1 true EP1731246B1 (fr) 2009-09-16

Family

ID=36601210

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008152A Not-in-force EP1731246B1 (fr) 2005-06-11 2006-04-20 Appareil pour la fabrication d'une diversité des objets moulés de poudre.

Country Status (8)

Country Link
US (1) US7553145B2 (fr)
EP (1) EP1731246B1 (fr)
JP (1) JP4621632B2 (fr)
AT (1) ATE442926T1 (fr)
CA (1) CA2550095A1 (fr)
DE (2) DE102005027032B4 (fr)
ES (1) ES2330771T3 (fr)
PL (1) PL1731246T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515961B1 (de) * 2014-06-18 2017-04-15 Miba Sinter Austria Gmbh Verfahren und Vorrichtung zum Pressen eines Grünlings
DE102017114455B3 (de) * 2017-06-29 2018-10-31 Gkn Sinter Metals Engineering Gmbh Ebenenplatte eines Pressenwerkzeugs
CN107932971B (zh) * 2017-12-22 2023-05-26 山西贵友自动化设备有限公司 挤压成型产品的压制生产系统

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3524220A (en) 1967-11-15 1970-08-18 Western Electric Co Die set for compacting powder
JPS59107002A (ja) * 1982-12-11 1984-06-21 Toyota Motor Corp 焼結部品の製造方法
JPH0783954B2 (ja) 1986-12-19 1995-09-13 マツダ株式会社 粉末成形方法
JPH0756152Y2 (ja) * 1987-11-30 1995-12-25 株式会社島津製作所 材料試験機
JPH07115233B2 (ja) * 1990-08-10 1995-12-13 株式会社ヨシツカ精機 粉末成形プレス
US5455002A (en) * 1992-03-12 1995-10-03 Aida Engineering, Ltd. Plastic working method for holed metal parts
DE4209767C1 (fr) * 1992-03-23 1993-05-06 Mannesmann Ag, 4000 Duesseldorf, De
JPH05315175A (ja) 1992-05-14 1993-11-26 Matsushita Electric Ind Co Ltd 磁気回路部品の製造方法および成形金型
JPH0631713A (ja) * 1992-07-21 1994-02-08 Nippon Nuclear Fuel Dev Co Ltd 圧粉成形体の製造方法および装置
JPH0798279B2 (ja) * 1992-11-05 1995-10-25 株式会社ヨシツカ精機 粉末成形プレスのパンチ接続方法および接続装置
EP0680405B1 (fr) * 1993-11-24 1999-08-04 Stackpole Limited Matrice double a mise en phase
DE19508952C2 (de) * 1995-03-13 1998-04-16 Schwaebische Huettenwerke Gmbh Preßvorrichtung zur Erzeugung eines Formteils und entsprechendes Formteil
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JPH09176701A (ja) 1995-12-25 1997-07-08 Toyota Motor Corp 異形部付きはす歯歯車成形体の成形金型
CA2245538C (fr) * 1996-02-02 2002-11-12 Englong He Ensemble formant wc sans chasse d'eau
JP3554443B2 (ja) * 1996-08-27 2004-08-18 本田技研工業株式会社 圧粉体の成形方法
DE19830601A1 (de) * 1998-07-09 2000-03-09 Friedrich Tilman Hes Formvorrichtung zur Herstellung homogener Formteile
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DE102004026969A1 (de) * 2004-06-02 2005-12-29 Sms Meer Gmbh Vorrichtung zum Herstellen eines Formteils aus Pulver

Also Published As

Publication number Publication date
PL1731246T3 (pl) 2010-02-26
EP1731246A1 (fr) 2006-12-13
ES2330771T3 (es) 2009-12-15
US7553145B2 (en) 2009-06-30
US20060286194A1 (en) 2006-12-21
JP2006346749A (ja) 2006-12-28
ATE442926T1 (de) 2009-10-15
JP4621632B2 (ja) 2011-01-26
DE102005027032B4 (de) 2007-06-28
DE102005027032A1 (de) 2006-12-28
CA2550095A1 (fr) 2006-12-11
DE502006004836D1 (de) 2009-10-29

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