Article | REF: H3752 V2

CAD: from geometrical to functional modelling

Author: Yvon GARDAN

Publication date: July 10, 2020, Review date: March 10, 2021

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Français

2. Geometric model extensions

The basic models in today's CAD/CAM systems are essentially geometric. However, a geometric model has a number of limitations, the two most important of which are that the information is incomplete (geometric only), and that the dimensions are nominal, which precludes any connection with manufacturing constraints. Hence the need to manage :

  • on shape (geometry) ;

  • technology ;

  • tolerancing (macro- and micro-geometrics) ;

  • on materials (physical or mechanical properties) ;

  • specific to a given application (finite element calculations, CNC manufacturing, etc.);

  • administrative (supplier referrals, etc.).

CAD system designers therefore quickly sought...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Additive manufacturing -3D printing

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Geometric model extensions