Appendices
The basics of ISO Tolerancing with functional approach
Article REF: AG2464 V1
Appendices
The basics of ISO Tolerancing with functional approach

Author : Bernard ANSELMETTI

Publication date: December 10, 2018 | Lire en français

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8. Appendices

8.1 Appendix 1 – Weighted least squares method

The principle is to associate the nominal surface with the real surface with the available degrees of freedom by minimizing S=∑ai⋅ei2 , the sum of the squares of the deviations ei of the points Mi of the real surface from the associated nominal surface, with a weighting according to the area ai of the facet around the point Mi calculated, for example, using a Voronoi-type cut (figure 47...

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