Laser-based powder bed fusion of metals enables the fabrication of parts with high geometric complexity, improved strength-to-weight properties, and reduced material waste. However, research efforts are still needed to improve process dynamics and quality for broader adoption in high-added-value industrial applications. This paper introduces a novel metrology-optimized building plate design for metal laser powder bed fusion, enhancing in-process monitoring and high-resolution X-ray computed tomography measurements, whose accuracy is fundamental to improving the process quality. The plate includes reference markers (fiducials) to correct perspective distortions in off-axis optical in-process monitoring and features removable inserts for enabling precise alignment of (1) high-resolution tomographic reconstructions, (2) in-process gathered data, and (3) building volume geometry.
METROLOGY-OPTIMIZED BUILDING PLATE FOR METAL LASER POWDER BED FUSION
Zanini F.
;Bonato N.;Carmignato S.
2024
Abstract
Laser-based powder bed fusion of metals enables the fabrication of parts with high geometric complexity, improved strength-to-weight properties, and reduced material waste. However, research efforts are still needed to improve process dynamics and quality for broader adoption in high-added-value industrial applications. This paper introduces a novel metrology-optimized building plate design for metal laser powder bed fusion, enhancing in-process monitoring and high-resolution X-ray computed tomography measurements, whose accuracy is fundamental to improving the process quality. The plate includes reference markers (fiducials) to correct perspective distortions in off-axis optical in-process monitoring and features removable inserts for enabling precise alignment of (1) high-resolution tomographic reconstructions, (2) in-process gathered data, and (3) building volume geometry.
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
