The geometric freedom associated with additive manufacturing (AM) processes create new challenges both in defining, communicating, and assessing the dimensional and geometric accuracy of parts. Starting from a review of the ASME-GD&T and ISO-GPS current practices, a new approach is proposed in this paper. The new approach combines the current tolerancing practices with an enriched voxel-based volumetric representation scheme, to overcome the actual limitations of the standards. Moreover, the new approach enables the link between product design optimization and product verification with respect to AM process chain. A case study is considered to prove the concept.
Geometrical product specification and verification in additive manufacturing
POLINI, Wilma;
2017-01-01
Abstract
The geometric freedom associated with additive manufacturing (AM) processes create new challenges both in defining, communicating, and assessing the dimensional and geometric accuracy of parts. Starting from a review of the ASME-GD&T and ISO-GPS current practices, a new approach is proposed in this paper. The new approach combines the current tolerancing practices with an enriched voxel-based volumetric representation scheme, to overcome the actual limitations of the standards. Moreover, the new approach enables the link between product design optimization and product verification with respect to AM process chain. A case study is considered to prove the concept.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
