Conception and Representation of GD&T Module in an Expert CAPP System for Rotational Parts

Rafik Elaakil, Rechia Ahmed, Abdelilah El Mesbahi, Oussama Jaider

Abstract: Computer-aided process planning (CAPP) is an essential interface for linking design and manufacturing processes. The purpose of CAPP is to transform a part design specification obtained from CAD system into a sequence of machining operations which can be used by CAM system involving the selection of necessary manufacturing processes, in order to transform a designed part into a final part economically and competitively. This paper focuses on one hand, in the extraction of tolerances (GD & T), and on the other hand, in the association between (GD & T), and the related features, embedded into an expert CAPP system.

Keywords: CAPP, machining operation sequencing, Expert system, knowledge bases, CAD/CAM, Artificial intelligence