A CT--CMM Benchmark Dataset for Dimensional Validation of Internal Cavities in LPBF Titanium and Inconel Artefacts

Data sets tomo_00110 — Ti64-Rough Material: Ti-6Al-4V State: rough LPBF Sample name: Ti64_Rough_internal_cavity tomo_00111 — Ti64-Polished Material: Ti-6Al-4V State: chemically milled Sample name: Ti64_Polished_internal_cavity tomo_00112 — IN625-Rough Material: Inconel 625 State: rough LPBF Sample name: IN625_Rough_internal_cavity tomo_00113 — IN625-Polished Material: Inconel 625 State: chemically milled Sample name: IN625_Polished_internal_cavity tomo_00114 — Chinook Material: Ti-6Al-4V State: rough LPBF (aux.) Sample name: Chinook_rotor_hub_blade_auxiliary All data were collected on a Comet Yxlon FF35 cone-beam CT system over a 360 degree scan range.

The Ti-6Al-4V and Inconel 625 artefacts were scanned with a 20 degree inclination angle, while the Chinook blade was scanned vertically (0 degree inclination). The Ti-6Al-4V and Inconel 625 artefacts were reconstructed with CERA using a single-material beam-hardening correction; surface-determination products were generated in Dragonfly (Fast Surface Finding, FSF) at FSF 0.2, 0.4 and 0.6 for Ti-6Al-4V and at FSF 0.6 plus a deep-learning route for Inconel 625.

For the Chinook blade, CERA / LDA reference data and FSF 0.6 surfaces are provided where available. The dataset is published as part of TomoBank and resides permanently at Argonne National Laboratory, find additional details at TomoBank - CT Metrology.