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김고중(Go-Joong Kim),정무영(Moo-Young Jung) 대한전자공학회 1992 대한전자공학회 학술대회 Vol.1992 No.10
The manual procedure of drafting engineering design is fast becoming obsolete, One of the important areas in CAPP is to automate tolerance assignment which is encountered in mechanical part design. This paper presents an approach for automating tolerance assignment using CAD database and tolerancing database in CAD drawing. The system is consisted of four major functions: feature extraction, feature inferencing, rule-based tolerance allocation, and automatic updating. AutoCAD R,1l is employed as CAD system and a computer program is developed by using AutoLlSP on PC-386.