TVCAPP, tolerance verification in computer-aided process planning

G. Abdou, R. Cheng

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


An expert system approach to generate alternative process plans for mechanical parts with tolerance requirements is described. The expert system, TVCAPP, starts by extracting and verifying dimensional and geometrical tolerances for each machining surface. The selected groups of machines and tools are then verified by the machining parameters which are generated based on geometric dimensioning and tolerancing approach. The geometric tolerancing features such as the dimensional and shape variations of surfaces, straightness, circularity, cylindricity, and concentricity with a given datum, were considered in the design of the tolerance verification module. Application of the expert system to a mechanical part is illustrated.

Original languageEnglish (US)
Pages (from-to)393-411
Number of pages19
JournalInternational Journal of Production Research
Issue number2
StatePublished - Feb 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Strategy and Management
  • Management Science and Operations Research
  • Industrial and Manufacturing Engineering


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