EP2776237A1 - 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

Info

Publication number
EP2776237A1
EP2776237A1 EP12816229.4A EP12816229A EP2776237A1 EP 2776237 A1 EP2776237 A1 EP 2776237A1 EP 12816229 A EP12816229 A EP 12816229A EP 2776237 A1 EP2776237 A1 EP 2776237A1
Authority
EP
European Patent Office
Prior art keywords
columns
press
pressing
die
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.)
Granted
Application number
EP12816229.4A
Other languages
German (de)
English (en)
Other versions
EP2776237B1 (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
Original Assignee
DORST Technologies GmbH and 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 DORST Technologies GmbH and Co KG filed Critical DORST Technologies GmbH and Co KG
Publication of EP2776237A1 publication Critical patent/EP2776237A1/fr
Application granted granted Critical
Publication of EP2776237B1 publication Critical patent/EP2776237B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

  • the invention relates to a method for pressing a pressed body, wherein in a die opening of a press at least two upper-side punches are placed on the material and underside and top side arranged pressing dies located therebetween material columns of at least two different metallic and / or
  • the invention also relates to a press and a data carrier with software for carrying out such a method.
  • DE 102 54 656 B4 discloses a ceramic powder and / or metal powder press.
  • This comprises a ceramic powder and / or metal powder press tool with at least one main body, with a plurality of at least two punches, which are arranged in a pressing position from one side immersed in a filled with ceramic and / or metal powder die opening of a die, with a plurality of at least two punch carriers, to each of which one of the punches is attached, wherein at least a part of the punch carriers can be coupled to respectively at least two adjusting drives, and wherein the
  • Base body are arranged adjustable, and with
  • the object of the invention is to further develop a method and a press for pressing a compact of at least two different metallic and / or ceramic powder and / or granular materials.
  • a speedy pressing should also be more complex
  • This object is achieved by the method for pressing a compact from at least two different metallic and / or ceramic powder and / or granular
  • granular materials in which in a die opening of a die, a first such material is filled, in which at least two upper-side punches are placed on the material at least temporarily in the die opening, arranged at the underside and top side
  • Material columns are adjusted along a pressing direction to different heights, in which after lifting the top arranged press die in the die opening, the second material is filled and in the final with the at least two upper-side punches the material
  • the pressing direction is from top to bottom and / or vice versa.
  • each of the stamp material is, wherein a cross-sectional contour through the material corresponds to a surface contour of a surface of the corresponding press ram.
  • the underside pressure rams are adjusted so far to different heights prior to filling of the first or second material that a free space above the ram is suitable for filling a required for a corresponding compacting body portion powder quantity.
  • the precompressed compact is compressed as far as it is necessary for its removal from the press and in particular for a subsequent sintering.
  • the final final compression can optionally also be carried out as an independent step, possibly also in another press.
  • the adjustment of the underside and top side arranged punch can in particular be carried out together with the material columns located therebetween, to a Contact of the mutually adjacent columns of material is lost. Under the fact that the contact of the mutually adjacent columns of material is lost, it is understood in particular that the adjacent materials are lost to each other binding forces.
  • the adjustment to different heights means that the mutually adjacent stamp relative to each other
  • the adjustment to different heights, in particular a / the adjustment for losing the lateral contact of the material columns can be performed independently of an intermediate reaching a subsequent second filling position for the second material.
  • the adjustment can also be done in an intermediary
  • adjusting movement for separating the columns of material takes place in a first step, even in a direction opposite to the direction of the subsequent filling position, or else beyond the filling position.
  • the material columns between the underside and top side arranged
  • Press punches are pre-compressed before a first
  • an embodiment can be implemented in which the material columns are precompressed between the underside and upper side arranged pressing dies, namely during or after a first adjustment of the material columns relative to each other.
  • Such a pre-compression can in particular by one
  • the shift of powder or material columns can be moved again.
  • the first material is pre-compressed or precompressed, no mixing of the first and the second filled-in and possibly not yet or only partially pre-compacted material occurs.
  • Interconnection or so-called hardware is designed with a processor for executing a program as so-called software or a combination of both.
  • Such a device is in particular as a ceramic and / or metal powder press with press dies as the
  • Stamping designed. Equivalent to a ceramic and / or metal powder press is a press for pressing a granular or mixed powder and granular material.
  • a data carrier with a program stored on it, which is programmed to carry out such a method in such a device, is also preferred.
  • the data carrier can be an independent transportable storage device or one integrated in the press or its control device
  • such compacts can be formed on the one hand with high precision from different material layers and on the other hand can be both clean
  • Fig. 1 process steps for pressing a compact of different materials in a ceramic and / or metal powder press
  • Fig. 2 further process steps to the pressed
  • Compact. 1 and 2 schematically show components of a press for pressing a compact of at least two different metallic and / or ceramic powder and / or granular materials p 1 - p 3. In chronological order are from right to left from 1 to 11 different
  • Materials pl, p2, p3 pressed. However, only two or more than three different materials can be used.
  • the materials pl - p3 can differ from each other in many different ways. In addition to differentiation by the chemical composition may also be differences in grain size, color or otherwise
  • a die 20 is arranged, which has a die opening 2 1.
  • the die opening 2 1 is used for filling the powdery and / or granular material PI - p3, in particular ceramic powder and / or metal powder, by means of a filling device 26. Under such a
  • Material or powder is in a broader sense, a granulate or a mixture of fine-grained powder and
  • the lower-side punches 22, 2 3 are in particular by means of driving means relative to each other and relative to the die 20 adjustable. After filling the powdery and / or granular material PI - p3 this can be compacted by means of top punches 24, 2 5 and pressed to the compact 30.
  • a control device 27 serves the various
  • Drive devices in particular one preferred top-side main press drive 2 8 and drives for moving individual of the punches 22 - 25 and / or the die 20, to control so that their individual movements run in a timely manner.
  • Such a press can in known manner have a press frame, which consists of two lateral press frame, which are on the top and bottom sides firmly connected to an upper side and a lower-side press frame.
  • the press frames are firmly clamped together to build up a raft flow through them as far as the punches 22-25.
  • the press on a press drive, which, for example, as the top side
  • Main press drive 2 8 is arranged on top of the press frame. About a press drive piston, the pressing force is applied to an upper press tool by the press drive, so that it is adjusted in the direction of the die 20. Due to the applied pressing force, the individual components of the press tools are moved together and against the
  • Any drive systems in particular electric motors, mechanical drives and / or hydraulic drives can be used as drives.
  • Bottom punches 22, 23 consists of a plurality of individual components. The opposite of this
  • Upper-side tool with, inter alia, the lower-side punches 22, 23 may in principle have a comparable structure, but may also be constructed in a conventional manner or a mixed form of conventional construction and the construction and the lower-side tool. The same applies to Adjustment arrangements for adjusting the single individual components of the tools. In particular, for the method described for producing a compact 30 from different materials p 1 - p 3, respectively
  • step 1 is a
  • An upper edge of the die 20 is located here, for example, a piece above an exemplary zero-pressing position hO.
  • the first lower-side punch 22 is raised to a height hl as an intermediate height of the first lower-side punch 22 for this method step 1. This height hl is located below the upper edge of the die 20, so that above the first punch 22 forms a fillable with the material pl space of the die opening 21.
  • the second lower-side punch 23 is adjacent to the first lower-side punch 22
  • cylindrical and annular punch may be used to form, for example, wheels or gears, which are formed with over the surface of different height wall and in the radial direction of different material stratification or material composition.
  • Section sl and a second section s2 as powder or material columns of the resulting compact 40.
  • the components are off
  • Step 2 outlined.
  • the upper-side punches 24, 25 have been placed, so that between the first lower-side punch 22 and the first upper-side punch 24, a first portion sl of the resulting
  • Section s2 arises as a column of material. Besides that is
  • a value of the pre-compression can preferably be specified by a freely adjustable amount and ultimately by a different
  • Stamp pairs 22 - 24 or 23 - 25 are set. This pre-compression is particularly advantageous in
  • the diagram of the third method step 3 shows the further method of the material columns and pre-compression up to a displacement of the upper edges of the sections sl, s2 of the material columns in a filling position for the second material p2.
  • the intermediate height h2 of the second lower side punch 23 was still maintained and the material in the second portion s2 was precompressed by lowering the second upper side punch 25, the first portion sl as a material column together with the first lower side punch 22 became one further intermediate height h4 of the first lower-side punch 22 is raised.
  • a placement of the upper-side punches 24, 25 and then a displacement of the material columns is performed.
  • the one column of material now consists of the first
  • the other column of material consists of the second section s2 the first material pl and an overlying fourth section s4 of the second material p2 between the second lower-side and upper-side stamps 23, 25.
  • third material p3 is filled.
  • the third material may optionally also be the same material as in the first filling step.
  • a subsequent ninth method step 9 it is shown that the two strigerklalen are moved relative to each other in a position in which later the individual components of the resulting compact 40 should be arranged not only in the horizontal, but also in lateral or radial direction to each other. There is thus a tester transport, in which the vertical powder or material columns are moved relative to each other.
  • a main pressing force from preferably the upper main press drive 28 on plates and the stamp 22 - 25 attached thereto takes place.
  • Press punches 24, 25 are raised relative to the upper die edge of the die 20.
  • Ejection may also be by peeling off by movement of the die relative to the compact 40, as known per se.
  • stamp pl first metallic and / or ceramic powder and / or granular material

Landscapes

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

Abstract

L'invention concerne un procédé de compression d'une pièce (30) constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents (p1, p2, p3 ). Un premier matériau (p1) est introduit (1; 4) dans une ouverture (21) d'une matrice (20). Dans l'ouverture de matrice (21), au moins deux poinçons supérieurs (22, 24) sont ensuite appliqués (2) au moins par intermittence sur le matériau (p1) et des poinçons de compression (22, 23, 24, 25) disposés en bas et en haut sont déplacés (2 - 3) ensemble, les colonnes de matériau étant situées entre eux, sur des hauteurs différentes le long d'une direction de compression. Après le relevage des poinçons de compression supérieurs (24, 25), le deuxième matériau (p2) est introduit (4) 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).
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 true EP2776237A1 (fr) 2014-09-17
EP2776237B1 EP2776237B1 (fr) 2016-02-03

Family

ID=47562893

Family Applications (1)

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
ATE191175T1 (de) * 1993-11-24 2000-04-15 Stackpole Ltd Hinterschnittene mehrteilige pressform
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
JP4316871B2 (ja) * 2000-06-20 2009-08-19 株式会社三和化学研究所 核を有する成型品、その製造方法、及びその製造装置
CA2458587A1 (fr) * 2001-08-30 2003-03-06 Sanwa Kagaku Kenkyusho Co., Ltd. Dispositif de fabrication d'articles moules et article moule pouvant etre fabrique par ce dispositif
CN1606434A (zh) * 2001-12-19 2005-04-13 株式会社三和化学研究所 控制释放成型品
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013067995A1 *

Also Published As

Publication number Publication date
DE102011118054A1 (de) 2013-05-16
EP2776237B1 (fr) 2016-02-03
WO2013067995A1 (fr) 2013-05-16

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