Computer-integrated manufacturing

Manufacturing Systems Integration Program, NIST 2008.

Computer-integrated manufacturing (CIM) is the manufacturing approach of using computers to control the entire production process.[1][2] This integration allows individual processes to exchange information with each other and initiate actions. Through the integration of computers, manufacturing can be faster and less error-prone, although the main advantage is the ability to create automated manufacturing processes. Typically CIM relies on closed-loop control processes, based on real-time input from sensors. It is also known as flexible design and manufacturing.

Overview

Computer-integrated manufacturing is used in automotive, aviation, space, and ship building industries.[3] The term "computer-integrated manufacturing" is both a method of manufacturing and the name of a computer-automated system in which individual engineering, production, marketing, and support functions of a manufacturing enterprise are organized. In a CIM system functional areas such as design, analysis, planning, purchasing, cost accounting, inventory control, and distribution are linked through the computer with factory floor functions such as materials handling and management, providing direct control and monitoring of all the operations.

As a method of manufacturing, three components distinguish CIM from other manufacturing methodologies:

CIM is an example of the implementation of information and communication technologies (ICTs) in manufacturing.

CIM implies that there are at least two computers exchanging information, e.g. the controller of an arm robot and a micro-controller of a CNC machine.

Some factors involved when considering a CIM implementation are the production volume, the experience of the company or personnel to make the integration, the level of the integration into the product itself and the integration of the production processes. CIM is most useful where a high level of ICT is used in the company or facility, such as CAD/CAM systems, the availability of process planning and its data.

History

The idea of "digital manufacturing" became prominent in the early 1970s, with the release of Dr. Joseph Harrington's book, Computer Integrated Manufacturing.[4] However,it was not until 1984 when computer-integrated manufacturing began to be developed and promoted by machine tool manufacturers and the Computer and Automated Systems Association and Society of Manufacturing Engineers (CASA/SME).

"CIM is the integration of total manufacturing enterprise by using integrated systems and data communication coupled with new managerial philosophies that improve organizational and personnel efficiency." ERHUM

Computer-integrated manufacturing topics

CIM & production control system: Computer Integrated Manufacturing is used to describe the complete automation of a manufacturing plant, with all processes running under computer control and digital information tying them together.[5]

Key challenges

There are three major challenges to development of a smoothly operating computer-integrated manufacturing system:

Subsystems in computer-integrated manufacturing

A computer-integrated manufacturing system is not the same as a "lights-out factory", which would run completely independent of human intervention, although it is a big step in that direction. Part of the system involves flexible manufacturing, where the factory can be quickly modified to produce different products, or where the volume of products can be changed quickly with the aid of computers. Some or all of the following subsystems may be found in a CIM operation:

Computer-aided techniques:

Devices and equipment required:

Technologies:

Others:

CIMOSA

CIMOSA (Computer Integrated Manufacturing Open System Architecture), is a 1990s European proposal for an open systems architecture for CIM developed by the AMICE Consortium as a series of ESPRIT projects.[6][7] The goal of CIMOSA was "to help companies to manage change and integrate their facilities and operations to face world wide competition. It provides a consistent architectural framework for both enterprise modeling and enterprise integration as required in CIM environments".[8]

CIMOSA provides a solution for business integration with four types of products:[9]

CIMOSA according to Vernadat (1996), coined the term business process and introduced the process-based approach for integrated enterprise modeling based on a cross-boundaries approach, which opposed to traditional function or activity-based approaches. With CIMOSA also the concept of an "Open System Architecture" (OSA) for CIM was introduced, which was designed to be vendor-independent, and constructed with standardised CIM modules. Here to the OSA is "described in terms of their function, information, resource, and organizational aspects. This should be designed with structured engineering methods and made operational in a modular and evolutionary architecture for operational use".[8]

Application

There are multiple areas of usage:

See also

References

  1. ↑ Kalpakjian, Serope; Schmid, Steven (2006), Manufacturing engineering and technology (5th ed.), Prentice Hall, p. 1192, ISBN 978-7-302-12535-8.
  2. ↑ Laplante, Phillip A. (2005), Comprehensive dictionary of electrical engineering (2nd ed.), CRC Press, p. 136, ISBN 978-0-8493-3086-5.
  3. ↑ Saracoglu, B. O. (2006). "Identification of Technology Performance Criteria for CAD/CAM/CAE/CIM/CAL in Shipbuilding Industry". doi:10.1109/PICMET.2006.296739.
  4. ↑ http://www.simflow.net/publications/books/cimie-part1.pdf
  5. ↑ Waldner, Jean-Baptiste (September 1992). Principles of Computer-Integrated Manufacturing. London: John Wiley & Sons. pp. 128–p132. ISBN 0-471-93450-X.
  6. ↑ AMICE Consortium (1991). Open System Architecture for CIM, Research Report of ESPRIT Project 688, Vol. 1, Springer-Verlag, 1989.
  7. ↑ AMICE Consortium (1991), Open System Architecture, CIMOSA, AD 1.0, Architecture Description, ESPRIT Consortium AMICE, Brussels, Belgium.
  8. 1 2 F. Vernadat (1996). Enterprise Modeling and Integration. p.40
  9. ↑ Richard C. Dorf, Andrew Kusiak (1994). Handbook of Design, Manufacturing, and Automation. p.1014

Further reading

  • Yoram Koren Computer Control of Manufacturing Systems, McGraw Hill, Inc. 1983, 287 pp, ISBN 0-07-035341-7
  • Singh, V (1997). The Cim Debacle: Methodologies to Facilitate Software Interoperability. Springer. ISBN 981-3083-21-2.
  • A. de Toni and S. Tonchia, Manufacturing Flexibility: a literature review International Journal of Production Research, 1998, vol. 36, no. 6, 1587-617.
  • Jean-Baptiste Waldner (1992), Principles of Computer-Integrated Manufacturing, John Wiley & Sons, ISBN 0-471-93450-X
  • Jean-Baptiste Waldner (1990), CIM, les nouvelles perspectives de la production, DUNOD- BORDAS, ISBN 978-2-04-019820-6

External links

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