Volumetric tolerancing and geometric verification for additive manufacturing

A volumetric representation of parts guarantees the freedom in design, manufacturing, and verification required by additive technologies. Volumetric representation is coherent with topological optimization (design) and can be obtained by X-ray computed tomography (verification). A pure volumetric approach in design, manufacture, and verification is possible, but still needs development. In particular, a volumetric representation and verification of geometric tolerances is needed. It has been shown that geometric tolerances can be represented in an “enriched voxel-based representation” and can be verified considering the mutual information of the voxels adjacent to the tolerance zone. This work proposes our current results on this subject, and introduces the future aims.