EP0873855A3 - Verfahren und Vorrichtung zur Herstellung von Presslingen aus Hartmetall, Keramik, Sintermetall oder dergleichen - Google Patents

Verfahren und Vorrichtung zur Herstellung von Presslingen aus Hartmetall, Keramik, Sintermetall oder dergleichen Download PDF

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Publication number
EP0873855A3
EP0873855A3 EP98103085A EP98103085A EP0873855A3 EP 0873855 A3 EP0873855 A3 EP 0873855A3 EP 98103085 A EP98103085 A EP 98103085A EP 98103085 A EP98103085 A EP 98103085A EP 0873855 A3 EP0873855 A3 EP 0873855A3
Authority
EP
European Patent Office
Prior art keywords
punch
displacement
force
ceramic
similar
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
EP98103085A
Other languages
English (en)
French (fr)
Other versions
EP0873855B1 (de
EP0873855A2 (de
Inventor
Jürgen Hinzpeter
Ingo Schmidt
Ulrich Gathmann
Jörg Reitberger
Klaus-Peter Preuss
Alexander Oldenburg
Joachim Greve
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.)
Fette GmbH
Original Assignee
Wilhelm Fette 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 Wilhelm Fette GmbH filed Critical Wilhelm Fette GmbH
Publication of EP0873855A2 publication Critical patent/EP0873855A2/de
Publication of EP0873855A3 publication Critical patent/EP0873855A3/de
Application granted granted Critical
Publication of EP0873855B1 publication Critical patent/EP0873855B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0094—Press load monitoring means
    • 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
    • B30B11/005—Control arrangements
    • 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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16—Control arrangements for fluid-driven presses
    • B30B15/22—Control arrangements for fluid-driven presses controlling the degree of pressure applied by the ram during the pressing stroke
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Control Of Presses (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Ceramic Products (AREA)
  • Punching Or Piercing (AREA)

Abstract

Verfahren zur Herstellung von Preßlingen aus Hartmetall, Keramik, Sintermetall oder dergleichen, bei dem ein Teil einer Charge eines pulver- oder granulatförmigen Ausgangsmaterials in eine Preßform eingefüllt und mit mindestens einem Preßstempel gegen eine Gegenfläche gepreßt wird, wobei die Kraft und der Weg des Preßstempels gemessen werden, gekennzeichnet durch folgende Verfahrensschritte:
  • Abhängig von der Geometrie des Preßlings und des Ausgangsmaterials wird während derKompression für einen Preßstempel ein gewünschtes Kraft-Weg-Diagramm (Sollkurve) ermittelt und gespeichert;
  • In einem Rechner werden während der Kompression die gemessenen Werte für den Weg und die Kraft des Preßstempels mit der Sollkurve verglichen;
  • Mittels mindestens eines separat betätigten Abschnitts des Preßstempels oder eines getrennten Stempels wird der Druck auf das Preßmmaterial während der Kompressionsphase erhöht oder verringert, sobald eine Abweichung von der Sollkurve ermittelt wird, um am Ende der Kompressionsphase eine gleiche Dichte jedes Preßlings zu erhalten.
EP98103085A 1997-04-24 1998-02-21 Verfahren und Vorrichtung zur Herstellung von Presslingen aus Hartmetall, Keramik, Sintermetall oder dergleichen Expired - Lifetime EP0873855B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19717217A DE19717217C2 (de) 1997-04-24 1997-04-24 Verfahren und Vorrichtung zur Herstellung von Preßlingen aus Hartmetall, Keramik, Sintermetall oder dergleichen
DE19717217 1997-04-24

Publications (3)

Publication Number Publication Date
EP0873855A2 EP0873855A2 (de) 1998-10-28
EP0873855A3 true EP0873855A3 (de) 1999-01-13
EP0873855B1 EP0873855B1 (de) 2006-01-18

Family

ID=7827546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98103085A Expired - Lifetime EP0873855B1 (de) 1997-04-24 1998-02-21 Verfahren und Vorrichtung zur Herstellung von Presslingen aus Hartmetall, Keramik, Sintermetall oder dergleichen

Country Status (4)

Country Link
US (1) US6074584A (de)
EP (1) EP0873855B1 (de)
AT (1) ATE315997T1 (de)
DE (2) DE19717217C2 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19846210A1 (de) * 1998-10-07 2000-04-13 Dorst Masch & Anlagen Presse zum Herstellen von Formkörpern
DE19949868B4 (de) * 1999-10-15 2005-01-20 R & D Carbon Ltd. Verfahren zur Herstellung von Kohlekörpern
DE19955196A1 (de) * 1999-11-16 2001-05-23 Korsch Pressen Ag Verfahren zum Konstanthalten der Bruchhärte von Tabletten
DE10010671C2 (de) 2000-03-04 2002-03-14 Fette Wilhelm Gmbh Verfahren zur Herstellung von Preßteilen durch Pressen von Metallpulver und anschließendes Sintern des Preßlings
DE10135283C2 (de) * 2001-07-19 2003-09-18 Fette Wilhelm Gmbh Verfahren zum Verpressen von Pulvermaterial
DE10142772C2 (de) * 2001-08-31 2003-09-25 Fette Wilhelm Gmbh Verfahren zur Herstellung von Pressteilen in einer Pulverpresse
DE10142773C1 (de) * 2001-08-31 2003-03-06 Fette Wilhelm Gmbh Hydraulische Presse zum Pressen von Metallpulver
DE10142623C2 (de) 2001-08-31 2003-11-06 Fette Wilhelm Gmbh Verfahren und Vorrichtung zur Minimierung der Streuung der maximalen Presskräfte in einer Pulverpresse
DE10151858A1 (de) * 2001-10-24 2003-05-08 Dorst Masch & Anlagen Verfahren zum Einstellen bzw. Überwachen eines Pressen-Werkzeugs und Pressen-Werkzeug bzw. Pressen-Steuereinrichtung dafür
DE10254656B4 (de) 2002-11-22 2005-10-13 Dorst Technologies Gmbh & Co. Kg Presseneinrichtung zum Herstellen maßhaltiger Presslinge mit zentraler Stempelabstützung
DE10262091B4 (de) * 2002-12-03 2005-12-22 Röltgen GmbH & Co. KG Tablettierpresse
US7014453B2 (en) * 2002-12-17 2006-03-21 Lear Corporation Machine having sensors for controlling molding operation
DE10301224A1 (de) * 2003-01-15 2004-08-05 Maschinenfabrik Lauffer Gmbh & Co Kg Verfahren zur Endpositionsregelung einer Presse für maßgenaue Formkörper
DE102004008322B4 (de) 2004-02-20 2008-11-27 Fette Gmbh Pulverpresse
GB0702196D0 (en) * 2007-02-06 2007-03-14 3M Innovative Properties Co Device for producing a dental workpiece
EP1964664B1 (de) 2007-02-27 2013-11-20 Maschinenfabrik Lauffer GmbH & Co. KG Verfahren zur Pressensteuerung einer Pulverpresse bei der Herstellung von Formlingen
EP2123435B1 (de) 2007-03-20 2016-03-09 Tungaloy Corporation Verfahren zur pressformung eines schneideinsatzes
GB0719824D0 (en) * 2007-10-11 2007-11-21 3M Innovative Properties Co Dental blank and method of making a dental ceramic blank
US8415268B2 (en) * 2008-07-02 2013-04-09 Basf Se Process for producing a ringlike oxidic shaped body
DE102009004620A1 (de) * 2009-01-15 2010-07-22 Gkn Sinter Metals Holding Gmbh Verfahren zum Betrieb einer Pressvorrichtung zur Herstellung von Presslingen konstanter Höhe aus pulverförmigen Stoffen, Steuergerät für eine derartige Pressvorrichtung und Pressvorrichtung
DE102009016716A1 (de) * 2009-04-09 2010-10-21 Gkn Sinter Metals Holding Gmbh Magnetkupplung
IT1401473B1 (it) * 2010-07-15 2013-07-26 Rm Technology Engineering Di Maggioni Roberto Dispositivo di compressione di polveri e simili.
DE102012019312A1 (de) * 2012-10-01 2014-04-03 Dorst Technologies Gmbh & Co. Kg Verfahren zum Steuern einer Keramik- und/oder Metallpulver-Presse bzw. Keramik- und/oder Metallpulver-Presse
DE102016107362B4 (de) * 2016-04-20 2020-01-23 Federal-Mogul Bremsbelag Gmbh Pressen mindestens einer Pressmasse mittels mehrerer Pressstempel
EP3403817B1 (de) * 2017-05-18 2024-04-03 Walter Ag Schneidplatte und verfahren zur herstellung eines grünkörpers der schneidplatte
CH716048B1 (de) * 2019-04-09 2024-02-15 Dietmar Kramer Dr Sc Techn Eth Phd Verfahren sowie eine Messeinrichtung zum Ausmessen von Utensilien für Pressen.
DE102021206078A1 (de) 2021-06-15 2022-12-15 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Vorrichtung und Verfahren zum Einspannen plattenförmiger Bauteile

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2031788A (en) * 1978-10-19 1980-04-30 Ptx Pentronix Apparatus and method for compacting prismatic or pyramidal articles from powder material
EP0403038A2 (de) * 1989-06-15 1990-12-19 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen von masshaltingen Presslingen
DE9102414U1 (de) * 1991-02-26 1991-05-16 Mannesmann AG, 4000 Düsseldorf Presse mit fortlaufender Preßkrafterfassung
DE4209767C1 (de) * 1992-03-23 1993-05-06 Mannesmann Ag, 4000 Duesseldorf, De
US5288440A (en) * 1991-05-02 1994-02-22 Yoshizuka Seiki Co., Ltd. Method and apparatus for controlling powder molding press
US5476631A (en) * 1992-06-09 1995-12-19 Cincinnati Incorporated Method and apparatus for adaptive powder fill adjustment on powder metal compacting presses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520662C3 (de) * 1975-05-09 1983-11-03 Wilhelm Fette Gmbh, 2053 Schwarzenbek Einrichtung zum Überwachen der Preßkräfte der Stempel einer Tablettenpresse
DE3823417A1 (de) * 1988-07-11 1990-01-18 Fette Wilhelm Gmbh Verfahren und einrichtung zum ueberwachen der presskraefte der stempel einer tablettenpresse
FR2638118A1 (fr) * 1988-10-20 1990-04-27 Adl Automation Procede et appareil pour la compression et le controle de la compression de matieres pulverulentes et presse en faisant application

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2031788A (en) * 1978-10-19 1980-04-30 Ptx Pentronix Apparatus and method for compacting prismatic or pyramidal articles from powder material
EP0403038A2 (de) * 1989-06-15 1990-12-19 MANNESMANN Aktiengesellschaft Verfahren und Vorrichtung zum Herstellen von masshaltingen Presslingen
DE9102414U1 (de) * 1991-02-26 1991-05-16 Mannesmann AG, 4000 Düsseldorf Presse mit fortlaufender Preßkrafterfassung
US5288440A (en) * 1991-05-02 1994-02-22 Yoshizuka Seiki Co., Ltd. Method and apparatus for controlling powder molding press
DE4209767C1 (de) * 1992-03-23 1993-05-06 Mannesmann Ag, 4000 Duesseldorf, De
US5476631A (en) * 1992-06-09 1995-12-19 Cincinnati Incorporated Method and apparatus for adaptive powder fill adjustment on powder metal compacting presses

Also Published As

Publication number Publication date
DE19717217A1 (de) 1998-10-29
DE59813346D1 (de) 2006-04-06
ATE315997T1 (de) 2006-02-15
DE19717217C2 (de) 1999-12-02
EP0873855B1 (de) 2006-01-18
US6074584A (en) 2000-06-13
EP0873855A2 (de) 1998-10-28

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