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WO1993019129A2 - Procede de realisation par cao/mao d'un outil de production - Google Patents

Procede de realisation par cao/mao d'un outil de production Download PDF

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Publication number
WO1993019129A2
WO1993019129A2 PCT/GB1993/000488 GB9300488W WO9319129A2 WO 1993019129 A2 WO1993019129 A2 WO 1993019129A2 GB 9300488 W GB9300488 W GB 9300488W WO 9319129 A2 WO9319129 A2 WO 9319129A2
Authority
WO
WIPO (PCT)
Prior art keywords
tool
curable composition
cam
mould
aluminium
Prior art date
Application number
PCT/GB1993/000488
Other languages
English (en)
Other versions
WO1993019129A3 (fr
Inventor
John Francis Kelly
Paul Jonathan Hogg
Original Assignee
Queen Mary & Westfield College
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 Queen Mary & Westfield College filed Critical Queen Mary & Westfield College
Priority to DE0630393T priority Critical patent/DE630393T1/de
Priority to EP93905544A priority patent/EP0630393A1/fr
Publication of WO1993019129A2 publication Critical patent/WO1993019129A2/fr
Publication of WO1993019129A3 publication Critical patent/WO1993019129A3/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
    • C08L83/02—Polysilicates
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
    • Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Definitions

  • This invention relates to methods of producing components, such as tools for mass production of articles, from materials by processes such as moulding, vacuum forming, casting, press forming and the like. It has principal application in CAD/CAM engineering i.e. computer aided design and computer aided modelling.
  • Production tools are used for volume product m ifacture, i.e. mass production, for example press forming. It is well known to machine the tool, using relatively laborious and expensive processes, frequently from models generated by commercially available "CAD/CAM” systems. For example one such known "CAD/CAM” system is the MASTERCAM system sold by Unimatic. In the course of making a tool, information contained in an initial drawing is
  • production tools should have specific physical properties, such as desirable values of hardness and/or temperature resistance, they are usually made from a quite different material than the soft material of the model. It is the process of transferring the features of the model to the tool, which is generally the most laborious and expensive part of the tool production process.
  • CAM computer aided modelling
  • representation of the desired tool is converted by said apparatus into machine readable input data, said data is read into a memory of said apparatus, and subsequently interpreted by modelling apparatus which is a part of said CAM apparatus to form a model for the tool from a suitable material, characterised in that the said model for.the tool is formed as a mould and the required tool is cast directly from said mould using a solid-forming, curable composition which exhibits substantial dimensional stability at
  • the present invention also provides in preferred embodiments, methods of producing a component tool of the kind described, from a preliminary model, comprising casting the tool directly from the model using said model as a mould for the tool, preferably from an inorganic resin of the silico-aluminate type.
  • the resin has a silicon : aluminium atomic ratio of 1.
  • Such a material can be cured at room temperature (25 to 50°C) and once cured, can be used in a wide variety of processes (such as injection moulding, vacuum forming, casting of various types, or press forming) at temperatures of up to 500°C or even up to 600°C and is dimensionally very stable.
  • the component drawing 2 of a dish-like production tool in aluminium is translated into machine readable input data form at 4, to be applied to a CAD/CAM machine 6.
  • the CAD/CAM machine used was the commerciallv available MASTERCAM apparatus, supplied by a company called Unimatic. Other known CAD/CAM apparatus could be used depending upon economics and other
  • Such apparatus includes the necessary computer software for converting a two-dimensional drawing into machine readable input data, means to store such data such as machine readable data carriers (floppy discs for
  • CAM apparatus could be adapted to convert a three dimensional representation of the required production tool, and the present invention
  • the machine interprets the drawing information, in a known fashion, to control modelling apparatus which
  • a production tool is then cast from this model, as indicated at 10 in the form of a dish, using a silico- aluminate inorganic resin, having a silicon : aluminium atomic ratio of 1.
  • a silico- aluminate inorganic resin having a silicon : aluminium atomic ratio of 1.
  • composition containing sodium hydroxide and fluoro-sodium poly(sialate-disilixo) works well, cures quickly and is dimensionally very stable even at 600°C.
  • the tool is cured at room temperature (25 to 50oC), and then becomes
  • the materials from which articles can be mass produced using tools obtained by the present invention include, plastics, glass, metals of various kinds and in particular aluminium and alloys thereof; ceramics, or even articles of concrete.
  • the material is required to take the form of the tool, such as injection moulding, vacuum forming, aluminium casting, aluminium super plastic forming, cold casting, squeeze casting, or press forming, as appropriate to the article being mass produced from the tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Human Computer Interaction (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Abstract

Procédé de réalisation, à l'aide d'un appareil de modélisation assistée par ordinateur (MAO) d'outil servant à fabriquer des articles. Selon ledit procédé, une représentation bidimensionnelle ou tridimensionnelle de l'outil désiré est convertie par ledit appareil en données d'entrée lisibles par la machine. Les données sont stockées dans une mémoire dudit appareil, et sont interprétées ultérieurement par l'appareil de modélisation qui fait partie de l'appareil MAO, de façon à constituer un modèle de l'outil à partir d'un matériau approprié. L'invention est caractérisée en ce que le modèle de l'outil est réalisé sous forme de moule et que l'on coule directement l'outil requis dans le moule, à l'aide d'une composition polymérisable formant un solide qui présente une stabilité dimensionnelle considérable à des températures atteignant 500 °C.
PCT/GB1993/000488 1992-03-09 1993-03-09 Procede de realisation par cao/mao d'un outil de production WO1993019129A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE0630393T DE630393T1 (de) 1992-03-09 1993-03-09 Verfahren zur herstellung von werkzeugen mit cad/cam.
EP93905544A EP0630393A1 (fr) 1992-03-09 1993-03-09 Procede de realisation par cao/mao d'un outil de production

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9205046.7 1992-03-09
GB929205046A GB9205046D0 (en) 1992-03-09 1992-03-09 Automated component production

Publications (2)

Publication Number Publication Date
WO1993019129A2 true WO1993019129A2 (fr) 1993-09-30
WO1993019129A3 WO1993019129A3 (fr) 1993-12-23

Family

ID=10711730

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000488 WO1993019129A2 (fr) 1992-03-09 1993-03-09 Procede de realisation par cao/mao d'un outil de production

Country Status (4)

Country Link
EP (1) EP0630393A1 (fr)
DE (1) DE630393T1 (fr)
GB (1) GB9205046D0 (fr)
WO (1) WO1993019129A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0737931A3 (fr) * 1995-04-11 1997-09-17 Canon Kk Procédé et appareil pour décider de la trajectoire d'un outil mouvant
WO1997046927A1 (fr) * 1996-06-07 1997-12-11 Societa' Emiliana Parchi Attrazioni Ravenna S.E.P.A.R. S.R.L. Dispositif de commande de robots anthropomorphes
EP0854406A1 (fr) * 1997-01-21 1998-07-22 Ford Global Technologies, Inc. Méthode de prédiction du volume des chambres de combustion finies à partir du moulage de la tête de cylindre brute
US6992027B1 (en) 2000-11-13 2006-01-31 Hexcel Composites Ltd Composite panel with fire resistant face sheets

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4665492A (en) * 1984-07-02 1987-05-12 Masters William E Computer automated manufacturing process and system
JPH02241627A (ja) * 1989-03-14 1990-09-26 Komatsu Ltd 金型生産システム
JPH0651361B2 (ja) * 1990-06-29 1994-07-06 株式会社寺田 自動樹脂型製造方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0737931A3 (fr) * 1995-04-11 1997-09-17 Canon Kk Procédé et appareil pour décider de la trajectoire d'un outil mouvant
US5768136A (en) * 1995-04-11 1998-06-16 Canon Kabushiki Kaisha Method and apparatus for deciding trace of tool to be moved
WO1997046927A1 (fr) * 1996-06-07 1997-12-11 Societa' Emiliana Parchi Attrazioni Ravenna S.E.P.A.R. S.R.L. Dispositif de commande de robots anthropomorphes
EP0854406A1 (fr) * 1997-01-21 1998-07-22 Ford Global Technologies, Inc. Méthode de prédiction du volume des chambres de combustion finies à partir du moulage de la tête de cylindre brute
US6992027B1 (en) 2000-11-13 2006-01-31 Hexcel Composites Ltd Composite panel with fire resistant face sheets

Also Published As

Publication number Publication date
EP0630393A1 (fr) 1994-12-28
WO1993019129A3 (fr) 1993-12-23
DE630393T1 (de) 1995-08-03
GB9205046D0 (en) 1992-04-22

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