The compliance with the standardized rules of syntax

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: by description of the virtual gauges. 10 E. Pairel, P. Hernandez and M. Giordano 6. PROSPECTS FOR THE USE OF THE TOLERANCES BY VIRTUAL GAUGES REPRESENTATION OF At present, in the majority of the CAD software packages, the tolerance frames are directly created by the user. The compliance with the standardized rules of syntax is in party ensured by the software which limits the possibilities of writing. The semantic coherence of the tolerances, with respect to the parts, is not verified and depends entirely on the expertise of the user. To our knowledge, at the moment, two software packages are able to generate the tolerance frames, in a quasi-automatic way, starting from the selection, by the user, of the toleranced features and the datum features on the 3D model of the part. Nevertheless the development and the updating of those software packages are delicate because the writing rules of the standardized tolerances are badly formalized and change regularly. The "virtual tolerancing gauges" could be generated in the same manner: by selecting the toleranced features and the datum features on the 3D model of the part, the user will define the inspecting gauge corresponding to each functional geometrical requirement of the product. These gauges will be displayed in 3D...
View Full Document

This note was uploaded on 08/03/2010 for the course DD 1234 taught by Professor Zczxc during the Spring '10 term at Magnolia Bible.

Ask a homework question - tutors are online