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Computer-Aided Engineering Journal

Issue 1 • Date Feb 1989

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Displaying Results 1 - 5 of 5
  • The introduction of DNC technology as a partial approach to achieving the objectives of CIM

    Publication Year: 1989 , Page(s): 16 - 20
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (364 KB)  

    Describes the philosophy and constituent elements behind CIM, and questions whether any of the perceptions of CIM as currently portrayed could exist as a working entity. Suggestions are advanced that CIM is not yet practical for most industrial situations, and could not be cost-justified even if it were achievable. The paper considers the progress made in each sub-element of CIM, and how the concept of `islands of automation' might achieve the widespread use of CIM technology without evolving to true CIM, and includes a case study of a company which is to introduce a novel DNC facility as a partial approach towards operating within a CIM philosophy View full abstract»

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  • Computer-aided process engineering

    Publication Year: 1989 , Page(s): 6 - 12
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (532 KB)  

    The process industries constitute a major international business sector with a turnover of over £50 billion in the UK alone. This article reviews how computers are applied at the fundamental process design stage and how they assist in performing efficient and safe manufacturing operations View full abstract»

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  • A knowledge-based system for process planning based on a solid modeller

    Publication Year: 1989 , Page(s): 21 - 26
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (456 KB)  

    Outlines the development of a process planning system using knowledge-based techniques with derivation of component geometric information from a three-dimensional solid modeller. The knowledge-based components of the system are centred on a production rule based expert system, coexisting with a nonlinear knowledge-based planning system. These are in turn coupled to a solid modeller via a geometric interface. The knowledge resident within the system operates on the geometry of the component to produce the planning and control data. The system is targetted at planning the manufacture of components with 21/ 2-D geometries, using a three-axis machining centre, from rectilinear blanks View full abstract»

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  • Customising of a two-dimensional CAD system to service the needs of a small high technology company

    Publication Year: 1989 , Page(s): 13 - 15
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (192 KB)  

    Discusses the implementation of a low cost CAD system, allied to a relational database product at a small high technology manufacturing company. The problems involved and the methods used to create a fully automatic system for the creation of production drawing are detailed, along with the methods of operation of the resulting system View full abstract»

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  • A new approach to machine control

    Publication Year: 1989 , Page(s): 27 - 32
    Cited by:  Patents (1)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (436 KB)  

    Addresses the need for a step change in the design of machine control systems. A lack of standardisation currently results in machine controllers which are extremely difficult to configure, support and integrate together. This has severely limited investment in advanced automation. Based on the results of Science and Engineering Research Council funded research, a reference architecture for machine control is proposed which offers a consistent approach to automating producing functions. By utilising modern computer methods, configuration tools can be provided and used to select and aggregate control system modules. The result is the generation of machine controllers with much reduced systems engineering costs but high levels of functionality which can be readily extended and supported View full abstract»

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