EP2776237B1 - Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents - Google Patents

Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents Download PDF

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Publication number
EP2776237B1
EP2776237B1 EP12816229.4A EP12816229A EP2776237B1 EP 2776237 B1 EP2776237 B1 EP 2776237B1 EP 12816229 A EP12816229 A EP 12816229A EP 2776237 B1 EP2776237 B1 EP 2776237B1
Authority
EP
European Patent Office
Prior art keywords
punches
columns
die
adjustment
die opening
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
EP12816229.4A
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German (de)
English (en)
Other versions
EP2776237A1 (fr
Inventor
Roland Menzel
Herbert Ludwig GRÖBL
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.)
DORST Technologies GmbH and Co KG
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DORST Technologies GmbH and Co KG
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Application filed by DORST Technologies GmbH and Co KG filed Critical DORST Technologies GmbH and Co KG
Publication of EP2776237A1 publication Critical patent/EP2776237A1/fr
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Classifications

    • 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

Definitions

  • US 2004/113319 A1 relates to a method in which a shaped body is pressed from different materials. For different production steps, lower press punches are adjusted individually. A body partially manufactured by stamping on the lower side is subsequently displaced uniformly vertically from the lower-side stamps.
  • a die 20 is arranged, which has a die opening 21.
  • the die opening 21 is used to fill the powdery and / or granular material P1 - p3, in particular ceramic powder and / or metal powder, by means of a filling 26.
  • a filling 26 Under such a material or powder is in a broader sense, a granulate or a mixture of fine-grained To understand powder and granular material.
  • a filling of the matrix calculation 21 with the first material p1 is sketched.
  • An upper edge of the die 20 is located here, for example, a piece above an exemplary zero-pressing position h0.
  • the first lower-side punch 22 is raised to a height h1 as an intermediate height of the first lower-side punch 22 for this process step 1.
  • This height h1 is located below the upper edge of the die 20, so that above the first punch 22, a space of the die opening 21 which can be filled with the material p1 is formed.
  • the second lower-side punch 23 is disposed adjacent to the first lower-side punch 22 and further offset from the inside die wall of the die 20 inwardly toward the die opening 21.
  • third material p3 is filled.
  • the third material may optionally also be the same material as in the first filling step.
  • the described method steps represent purely by way of example selected times of a pressing cycle for a compact 30.
  • individual ones may also be used these process steps are omitted or added further process steps.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)

Claims (12)

  1. Procédé pour fabriquer par compression un corps comprimé (30) à partir d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents (p1, p2, p3), selon lequel
    - un premier matériau de ce type (p1 ; p2) est rempli (1 ; 4) dans une ouverture de matrice (21) d'une matrice (20),
    - au moins deux poinçons supérieurs (22, 24) sont appliqués (2 ; 5) au moins temporairement sur le matériau (p1 ; p2) dans l'ouverture de matrice (21),
    - des poinçons de compression (22, 23, 24, 25) disposés sur le dessous et sur le dessus sont déplacés (2 - 3 ; 5 - 6) à des hauteurs différentes le long d'une direction de compression conjointement avec les colonnes de matériau situées entre eux,
    - après relevage des poinçons de compression (24, 25) disposés sur le dessus, le deuxième matériau (p2 ; p3) est rempli (4 ; 7) dans l'ouverture de matrice (21),
    - pour finir, le matériau (p1 ; p2) est soumis à la compression finale (9 - 10) au moyen desdits au moins deux poinçons supérieurs (24, 25),
    - sachant que les colonnes de matériau sont, avant leur premier déplacement relatif (2 - 3), pré-comprimées entre les poinçons de compression (22, 23, 24, 25) disposés sur le dessous et sur le dessus.
  2. Procédé selon la revendication 1, selon lequel le déplacement des poinçons de compression (22, 23, 24, 25) disposés sur le dessous et sur le dessus est effectué conjointement avec les colonnes de matériau situées entre eux jusqu'à la perte (2 ; 5) du contact entre les colonnes de matériau mutuellement voisines.
  3. Procédé selon la revendication 2, selon lequel le déplacement des poinçons de compression (22, 23, 24, 25) disposés sur le dessous et sur le dessus est effectué conjointement avec les colonnes de matériau situées entre eux jusqu'à ce que les colonnes de matériau mutuellement voisines ne présentent plus (2) de contact entre elles.
  4. Procédé selon la revendication 2 ou 3, selon lequel, à la suite de la perte du contact, les poinçons de compression (22, 23, 24, 25) disposés sur le dessous et sur le dessus sont déplacés conjointement avec les colonnes de matériau situées entre eux dans une position dans laquelle le deuxième matériau (p2 ; p3) est rempli (4 ; 7).
  5. Procédé selon l'une des revendications précédentes, selon lequel le déplacement est effectué à des hauteurs différentes indépendamment de l'atteinte intermédiaire d'une deuxième position de remplissage consécutive pour le deuxième matériau (p2 ; p3).
  6. Procédé selon l'une des revendications précédentes, selon lequel le déplacement s'effectue au cours d'une étape intercalée au-delà de la position de remplissage, ou dans une direction opposée à la direction de la position de remplissage consécutive.
  7. Procédé selon l'une des revendications précédentes, selon lequel un/le déplacement pour la perte du contact latéral des colonnes de matériau est effectué indépendamment de l'atteinte intermédiaire d'une deuxième position de remplissage consécutive pour le deuxième matériau (p2 ; p3).
  8. Procédé selon l'une des revendications précédentes, selon lequel les colonnes de matériau situées entre les poinçons de compression (22, 23, 24, 25) disposés sur le dessous et sur le dessus sont pré-comprimées pendant ou après un premier déplacement relatif (3) des colonnes de matériau.
  9. Procédé selon l'une des revendications précédentes, selon lequel au moins un des poinçons inférieurs et des poinçons supérieurs (22, 24) présente respectivement une configuration annulaire ou est réalisé avec une ouverture de passage située à l'intérieur, pour le passage d'au moins un autre poinçon inférieur ou supérieur (23, 25).
  10. Dispositif avec
    - une matrice (20) dotée d'une ouverture de matrice (21),
    - sur le dessous, au moins deux poinçons (22, 23) se dressant dans l'ouverture de matrice (21),
    - sur le dessus, au moins deux poinçons (24, 25) pouvant être introduits dans l'ouverture de matrice (21),
    - un équipement de remplissage (26) pour remplir l'ouverture de matrice (21) avec au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents (p1, p2), et
    - un équipement de commande (27), sachant que l'équipement de commande est configuré et/ou programmé pour la mise en oeuvre d'un procédé selon l'une des revendications précédentes.
  11. Dispositif selon la revendication 10, qui est réalisé sous la forme d'une presse pour pulvérulents céramiques et/ou métalliques avec des poinçons de presse comme poinçons (22, 23, 24, 25).
  12. Support de données sur lequel est enregistré un programme qui est programmé pour la mise en oeuvre du procédé selon l'une des revendications 1 à 9 dans un dispositif selon la revendication 10 ou 11.
EP12816229.4A 2011-11-09 2012-11-09 Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents Active EP2776237B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011118054A DE102011118054A1 (de) 2011-11-09 2011-11-09 Verfahren und Presse zum Pressen eines Presskörpers aus zumindest zwei verschiedenen metallischen und/oder keramischen pulver-und/oder granulatförmigen Materialien
PCT/DE2012/001083 WO2013067995A1 (fr) 2011-11-09 2012-11-09 Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents

Publications (2)

Publication Number Publication Date
EP2776237A1 EP2776237A1 (fr) 2014-09-17
EP2776237B1 true EP2776237B1 (fr) 2016-02-03

Family

ID=47562893

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Application Number Title Priority Date Filing Date
EP12816229.4A Active EP2776237B1 (fr) 2011-11-09 2012-11-09 Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents

Country Status (3)

Country Link
EP (1) EP2776237B1 (fr)
DE (1) DE102011118054A1 (fr)
WO (1) WO2013067995A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015201873A1 (de) 2015-02-03 2016-08-18 Gkn Sinter Metals Engineering Gmbh Leises Zahnrad
DE102016103051A1 (de) 2016-02-22 2017-08-24 Gkn Sinter Metals Engineering Gmbh Pumpenanordnung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60258401A (ja) * 1984-06-01 1985-12-20 Toyota Motor Corp 複層焼結部材の成形方法
JPH08506057A (ja) * 1993-11-24 1996-07-02 スタックポール リミテッド アンダーカット割形ダイ
JPH09202905A (ja) * 1996-01-24 1997-08-05 Dainatsukusu:Kk 焼結によるシンクロナイザーリングの製造方法
US8211359B2 (en) * 1999-07-29 2012-07-03 Beane Glenn L Method, system, and computer program for controlling a hydraulic press
MXPA02012640A (es) * 2000-06-20 2004-09-10 Sanwa Kagaku Kenkyusho Co Piezas moldeadas que tienen nucleo y metodos y aparato para fabricarlas.
EP1440790A4 (fr) * 2001-08-30 2005-11-02 Sanwa Kagaku Kenkyusho Co Dispositif de fabrication d'articles moules et article moule pouvant etre fabrique par ce dispositif
KR20040073495A (ko) * 2001-12-19 2004-08-19 가부시키가이샤산와카가쿠켄큐쇼 방출제어형 성형품
SE0203475A0 (en) * 2002-01-25 2003-07-26 Ck Man Ab A method and an apparatus for producing multi-level or stepped components for shock (impact) compression of powdered material
DE10254656B4 (de) 2002-11-22 2005-10-13 Dorst Technologies Gmbh & Co. Kg Presseneinrichtung zum Herstellen maßhaltiger Presslinge mit zentraler Stempelabstützung
DE102009042598A1 (de) * 2009-09-23 2011-03-24 Gkn Sinter Metals Holding Gmbh Verfahren zur Herstellung eines Grünlings
DE102009049845A1 (de) 2009-10-19 2011-04-21 Dorst Technologies Gmbh & Co. Kg Metall- oder Keramikpulver-Presse und Steuerverfahren dafür

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Publication number Publication date
DE102011118054A1 (de) 2013-05-16
EP2776237A1 (fr) 2014-09-17
WO2013067995A1 (fr) 2013-05-16

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