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EP0403040A3 - Verfahren und Vorrichtung zur Herstellung masshaltiger Presslinge - Google Patents

Verfahren und Vorrichtung zur Herstellung masshaltiger Presslinge Download PDF

Info

Publication number
EP0403040A3
EP0403040A3 EP19900250140 EP90250140A EP0403040A3 EP 0403040 A3 EP0403040 A3 EP 0403040A3 EP 19900250140 EP19900250140 EP 19900250140 EP 90250140 A EP90250140 A EP 90250140A EP 0403040 A3 EP0403040 A3 EP 0403040A3
Authority
EP
European Patent Office
Prior art keywords
tolerance range
compressive force
final pressing
pressed
dimensionally stable
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
EP19900250140
Other languages
English (en)
French (fr)
Other versions
EP0403040B1 (de
EP0403040A2 (de
Inventor
Gerd Dr.-Ing. Hinzmann
Norbert Dipl.-Ing. Nies
Siegfried Radewahn
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Priority to AT90250140T priority Critical patent/ATE96732T1/de
Publication of EP0403040A2 publication Critical patent/EP0403040A2/de
Publication of EP0403040A3 publication Critical patent/EP0403040A3/de
Application granted granted Critical
Publication of EP0403040B1 publication Critical patent/EP0403040B1/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Powder Metallurgy (AREA)
  • Press Drives And Press Lines (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vor­ richtung zur Herstellung maßhaltiger Preßlinge aus pulverförmigen Massen, insbesondere aus Metallpulver, auf einer Presse in einer Preßform mit mindestens einem Ober- und mindestens einem Unterstempel, bei dem die Preßstempel in der Preßendstellung auf vorgegebene Sollpositionen gefahren werden und wobei während des Pressens der Verlauf der Preßkraft mindestens eines der Stempel in Abhängigkeit vom Verfahrweg erfaßt und jeweils mit einem vorgegebenen wegabhängigen Toleranz­ band der Preßkraft verglichen wird. Um ein Verfahren und eine Vorrichtung anzugeben, das hinsichtlich der Formgenauigkeit der Preßlinge noch engere Toleranzen zuläßt und gleichzeitig die Gefahr der Ausschußpro­ duktion weiter vermindert, wird vorgeschlagen, daß bei einem Überschreiten des Toleranzbandes die Soll­ position des betreffenden Stempels in der Preßend­ stellung so verändert wird, daß die Höhe des Preßlings in der Preßendstellung um einen Betrag verringert wird, der der mit der größeren Preßendkraft einhergehenden erhöhten Auffederung des Preßlings nach seinem Aus­ formen entspricht, und bei einem Unterschreiten des Toleranzbandes umgekehrt verfahren wird.
EP90250140A 1989-06-15 1990-05-31 Verfahren und Vorrichtung zur Herstellung masshaltiger Presslinge Expired - Lifetime EP0403040B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90250140T ATE96732T1 (de) 1989-06-15 1990-05-31 Verfahren und vorrichtung zur herstellung masshaltiger presslinge.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3919847A DE3919847A1 (de) 1989-06-15 1989-06-15 Verfahren und vorrichtung zur herstellung masshaltiger presslinge
DE3919847 1989-06-15

Publications (3)

Publication Number Publication Date
EP0403040A2 EP0403040A2 (de) 1990-12-19
EP0403040A3 true EP0403040A3 (de) 1991-03-06
EP0403040B1 EP0403040B1 (de) 1993-11-03

Family

ID=6382959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90250140A Expired - Lifetime EP0403040B1 (de) 1989-06-15 1990-05-31 Verfahren und Vorrichtung zur Herstellung masshaltiger Presslinge

Country Status (5)

Country Link
US (1) US5024811A (de)
EP (1) EP0403040B1 (de)
JP (1) JPH082519B2 (de)
AT (1) ATE96732T1 (de)
DE (2) DE3919847A1 (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3609107B2 (ja) * 1992-11-20 2005-01-12 インターメタリックス株式会社 圧粉成形体成形方法及び装置
AU5556894A (en) * 1993-11-24 1995-06-13 Stackpole Limited Undercut split die
AU5556994A (en) * 1993-11-24 1995-06-13 Stackpole Limited Phased split die
US6165400A (en) * 1996-05-09 2000-12-26 Stackpole Limited Compacted-powder opposed twin-helical gears and method
US6440357B1 (en) 1996-05-09 2002-08-27 Stackpole Limited Compacted-powder opposed twin-helical gears and method
DE19728767C1 (de) * 1997-07-07 1999-01-07 Forschungszentrum Juelich Gmbh Preßwerkzeug zum uniaxialen Kaltpressen von Pulverproben
DE19854075A1 (de) * 1998-11-24 2000-05-25 Henkel Kgaa Verfahren zur Serienfertigung von Formkörpern mit geringer Härteschwankung
US6669891B1 (en) * 1999-04-02 2003-12-30 Midwest Brake Bond Company Method and apparatus for producing brake lining material
US6531090B2 (en) * 2000-02-17 2003-03-11 Sumitomo Special Metals Co., Ltd. Method for producing powder compact and method for manufacturing magnet
GB2360825B (en) * 2000-03-30 2004-11-17 Formflo Ltd Gear wheels roll formed from powder metal blanks
JP3687492B2 (ja) * 2000-06-21 2005-08-24 株式会社村田製作所 誘電体ブロックのプレス成形方法
DE10142772C2 (de) * 2001-08-31 2003-09-25 Fette Wilhelm Gmbh Verfahren zur Herstellung von Pressteilen 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
DE10301224A1 (de) * 2003-01-15 2004-08-05 Maschinenfabrik Lauffer Gmbh & Co Kg Verfahren zur Endpositionsregelung einer Presse für maßgenaue Formkörper
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
CN102548745B (zh) * 2009-07-03 2014-12-10 三和系统工程株式会社 粉体的压缩成形方法及其装置
JP5926256B2 (ja) * 2010-07-30 2016-05-25 エルジー イノテック カンパニー リミテッド 熱間加圧焼結装置及びこれに使用する加圧部材
CN112170843B (zh) * 2020-09-29 2023-01-31 中国航发动力股份有限公司 一种旋流器流道的激光选区熔化成形工艺模型确定方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173235A (en) * 1966-04-18 1969-12-03 Cincinnati Shaper Co Load Indicating Devices for Compacting Press
DE2951716A1 (de) * 1979-12-19 1981-07-02 Mannesmann AG, 4000 Düsseldorf Verfahren und vorrichtung zum pressen von formkoerpern
DE3425221A1 (de) * 1983-07-12 1985-01-24 Aktiebolaget Bofors, Bofors Regelkreis fuer eine materialbearbeitungsmaschine
US4570229A (en) * 1983-09-19 1986-02-11 Pennwalt Corporation Tablet press controller and method
DE3715077A1 (de) * 1987-05-06 1988-12-01 Netzsch Maschinenfabrik Verfahren zum steuern einer presse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3698843A (en) * 1971-02-24 1972-10-17 Nat Forge Co High production isostatic molding device
JPS57209797A (en) * 1981-06-19 1982-12-23 Toyota Motor Corp Method and apparatus for controlling die position of liquid pressure type powder press
JPS58215299A (ja) * 1982-06-09 1983-12-14 Nippon Piston Ring Co Ltd 複合バルブシ−トの製造方法
JPS59183998A (ja) * 1983-04-02 1984-10-19 Hitachi Powdered Metals Co Ltd 圧粉体の成形不良防止法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1173235A (en) * 1966-04-18 1969-12-03 Cincinnati Shaper Co Load Indicating Devices for Compacting Press
DE2951716A1 (de) * 1979-12-19 1981-07-02 Mannesmann AG, 4000 Düsseldorf Verfahren und vorrichtung zum pressen von formkoerpern
DE3425221A1 (de) * 1983-07-12 1985-01-24 Aktiebolaget Bofors, Bofors Regelkreis fuer eine materialbearbeitungsmaschine
US4570229A (en) * 1983-09-19 1986-02-11 Pennwalt Corporation Tablet press controller and method
DE3715077A1 (de) * 1987-05-06 1988-12-01 Netzsch Maschinenfabrik Verfahren zum steuern einer presse

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Band 7, Nr. 68 (M-201)[1213], 19. März 1983; & JP-A-57 209 797 (TOYOTA) 23-12-1982 *
PATENT ABSTRACTS OF JAPAN, Band 9, Nr. 42 (M-359)[1765], 22. Februar 1985; & JP-A-59 183 998 (HITACHI) 19-10-1984 *

Also Published As

Publication number Publication date
EP0403040B1 (de) 1993-11-03
ATE96732T1 (de) 1993-11-15
US5024811A (en) 1991-06-18
EP0403040A2 (de) 1990-12-19
DE59003294D1 (de) 1993-12-09
JPH082519B2 (ja) 1996-01-17
DE3919847C2 (de) 1991-03-28
DE3919847A1 (de) 1990-12-20
JPH0327897A (ja) 1991-02-06

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