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Data pedigree requirements are being established for PBF-LB platforms. Tensile testing and heat treatment are used to determine process consistency.
The capability of fabricating components on any additive manufacturing (AM) laser powder bed fusion (PBF-LB) platform is needed to enable supply chain flexibility. Qualifying AM processes for commercial and defense applications remains a challenge due to the variability in the mechanical properties of the parts produced by different platforms. Previous round-robin studies have investigated build-to-build and machine-to-machine variability to control variables. When considering PBF-LB platforms, there are differences in machine technology such as laser optics train, recoating mechanism, and gas flow along with default processing parameters in each system. Therefore, there is a critical need for a study of cross-platform consistency in PBF-LB.
Gather data on the mechanical properties of Inconel 718 (INC 718) produced on PBF-LB platforms to:
This project focuses on developing a neutral manufacturing plan leveraging the mechanical properties of INC 718 test specimens. These test specimens will be produced on PBFLB machines to establish consistency across platforms. The OEMs of the PBF-LB machines will provide consultation on processing pedigree. Methods for analyzing and improving consistency will be determined through execution of the following tasks: