Intralayer multi-material structure stainless-steel/nickel-superalloy fabricated via laser-powder bed fusion process. (January 2023)

• Record Type: Journal Article
• Authors: Errico, Vito; Posa, Paolo; Fusco, Andrea; Angelastro, Andrea; Luisa Campanelli, Sabina
• Is Part Of: Manufacturing letters. Volume 35(2023)
• Page Start: 11
• Page End: 15
• Publication Date: 2023-01
• Subjects: Laser-powder bed fusion -- Nickel-superalloy -- AISI 316L -- Multi-material structures -- Optical process monitoring -- Intralayer; Manufacturing industries -- Periodicals; Production engineering -- Periodicals; Manufacturing industries; Periodicals; 670
• DOI: 10.1016/j.mfglet.2022.11.004
• Languages: English
• ISSNs: 2213-8463

Abstract

Abstract: This work aims to contribute to the progress in the fabrication of multi-material structures using the Laser-Powder Bed Fusion technology. To manufacture an intralayer multi-material sample, an ad-hoc partitioning system was developed for the powder chamber. The manufacturability of a Stainless-Steel/Nickel-superalloy multi-material component, having a strong bond at the interface, which appeared cracks- and porosity free, was demonstrated. To characterize the sample in-situ and real-time, an optical monitoring system was implemented. The latter can allow for detection, in real-time and in a layer-by-layer manner, of any malfunctions during the process and contaminations between the two different materials.