A Microcomputer-Aided Interactive Process Planning and Estimation System for Use in a Jobbing Foundry

  • A. Ajmal
  • B. G. Dale


This paper outlines a microcomputer-based interactive process planning and estimating system for use in a jobbing foundry producing either or both ferrous and non-ferrous castings. It is concerned mainly with estimation of casting, core-making and moulding weight, various production parameters (e.g. metal/mould ratio, mould box size, yield ratio) manufacturing time and cost. The system has been organized in modular format, of which there are seven, and contains 25 options for main shape elements. A feedback loop has been incorporated into the system to improve the accuracy of weight, time and cost estimation. Preliminary results indicate that the system will reduce the skill and time required in estimation and planning and will produce a more accurate and consistent methods sheet. The use of the system is described by an example of a typical casting from concept through modelling to final estimate.


Material Cost Yield Ratio Cover Plate Labour Time Mould Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. [1]
    Diggles A P (1982) Computer and foundry management. Foundry Trade Journal, 152 (9), 314–318.Google Scholar
  2. [2]
    Blore D (1984) Computer-aided process planning. Chartered Mechancial Engineering, 31 (5), 31–33.Google Scholar
  3. [3]
    Anonymous (1982) Foundry Computer Production Control System Baker Perkins Ltd, Peterborough, pp. 1–19.Google Scholar
  4. [4]
    Anonymous (1982) The Foundry Resource Management (FORUM) Management Information Services Ltd, Surrey, pp. 1–21.Google Scholar
  5. [5]
    Anonymous (1983) BCIRA Micro-computer Programs Foundry Accounting BCIRA, Alvechurch, Birmingham, pp. 1–4.Google Scholar
  6. [6]
    Anonymous (1983) Foundry Production Control Package BNF Metals Technology Centre, Oxfordshire, pp. 1–6.Google Scholar
  7. [7]
    Anonymous (1984) A Low-cost Easy to Use System Designed for Foundries Dewtec Computer Systems, Queensway, Birmingham, pp. 1-5.Google Scholar
  8. [8]
    Anonymous (1985) New software system for foundry. British Foundryman, 78 (2), 54–57.Google Scholar
  9. [9]
    Anonymous (1983) PETSPEED Oxford Computer Systems (Software) Ltd, pp. 1-12.Google Scholar

Copyright information

© Springer Science+Business Media New York 1986

Authors and Affiliations

  • A. Ajmal
    • 1
  • B. G. Dale
    • 1
  1. 1.Department of Management SciencesUniversity of Manchester Institute of Science and TechnologyManchesterUK

Personalised recommendations