Errors of shape, position, orientation, beat. Part 2

Geometric specifications (NF E 04-552) (ISO 1101): which the design office produces on a definition drawing, guarantee geometric deviations between the theoretical nominal imagined and the actual realized, compatible with functional conditions.

The defects taken into account are classified into four categories:

• shape defects ;

• orientation faults ;

• position faults ;

• flutter defects.

For these various shortcomings, this section will be accompanied by a description of the different syntaxes that can be used by the designer:

• decoding (in the sense of the ISO standard) necessary for their interpretation;

• an approach to the associated checking fixtures.