Toward a Theory of Geometric Tolerancing

Issues in the Metrology of Geometric Tolerancing

The classiication problem is fundamental in the metrology of Geometric Tolerancing: given a part B, is it within some tolerance ? The \standard method-ology" for the classiication problem comprises three steps: sampling , algorithmic step and policy decision . The issues we examine are posed around this methodology, using a simple 1-dimensional problem as case study.

Some Aspects of Geometric Tolerancing (extended Abstract)

A statistical framework for geometric tolerancing manufactured parts

An image is never noise free. Visual inspection of a part from its image is therefore affected by image errors. Understanding how image errors affect measurement precision is therefore critical for accurate inspection. In this paper, we lay out a statistical framework that allows to explicitly handle image errors and characterize their impact on measurement precision. A hierarchical model is al...

Clarifications of Rule 2 in Teaching Geometric Dimensioning and Tolerancing

Geometric dimensioning and tolerancing is a symbolic language used on engineering drawings and computer generated three-dimensional solid models for explicitly describing nominal geometry and its allowable variation. Application cases using the concept of Rule 2 in the Geometric Dimensioning and Tolerancing (GD&T) are presented. The rule affects all fourteen geometric characteristics. Depending...

Teaching Geometric Dimensioning and Tolerancing in a Manufacturing Program