Computer-aided tolerance assignment procedure (CATAP) for design dimensioning

The manual procedure of drafting engineering designs is fast becoming obsolete. Newer systems for computer-aided design (CAD) drafting are emerging everyday. However, the process of including tolerance details in these CAD drawings is extremely complex and has very little evidence of existence in pa...

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Bibliographic Details
Published in:International journal of production research 1992-03, Vol.30 (3), p.599-610
Main Authors: PANCHAL, KAUSHAL, RAMAN, SHIVAKUMAR, SIMIN PULAT, P.
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Mechanical engineering. Machine design
tolerance
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Summary:The manual procedure of drafting engineering designs is fast becoming obsolete. Newer systems for computer-aided design (CAD) drafting are emerging everyday. However, the process of including tolerance details in these CAD drawings is extremely complex and has very little evidence of existence in past literature. This paper identifies and computerizes a procedure for automatic tolerance assignment in CAD drawings. The procedure developed envelopes three major stages: feature extraction, feature infcrcncing, and rule-based tolerance allocation. The system was implemented on an IBM-PC compatible. The results established through example analysis verify the utility of the system.
ISSN:0020-7543
1366-588X
DOI:10.1080/00207549208942913