The verification of shape and position tolerances is one of the most important measurements to be carried out in many manufacturing processes. These checks have a strong impact on the functionality of the parts and on manufacturing costs. For precision parts in particular, the permissible deviations are increasingly reduced, with tolerances of the order of a micrometer.
These deviations from the ideal dimensions calculated by the designer are commonplace and the challenge is to keep the deviations within the allowed tolerances.
However, in the metrology room or in the workshop, misinterpretations can have serious consequences on the quality of the part, and therefore on the entire production process.
Achieving a reliable result involves measurements that are complex, with important precautions to evaluate the results and decide on the best measurement strategy.
The Accretech guide "Understanding Shape Measurements" tells quality managers or production staff how to meet this challenge when measuring shape and position tolerances.
This document by Accretech experts offers an overview, detailing which tolerances are relevant, how these tolerances are measured, what should be taken into account when measuring, and what technologies are available for this.
The guide details the fundamental principles of shape measurement, the main causes of errors and the existing ways to avoid them:
- The most important geometric tolerances
- An overview of the reference calculations
- Identify and avoid causes of measurement errors
A useful short book to avoid typical errors detrimental to quality assurance and thus optimize the result of measurements.
This guide is available on request on the website of the manufacturer Accretech: