|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||A Methodology for Statistics Based Qualification for Selective Laser Melting of Metals.
||Wesley Everhart, Elizabeth Fitzgerald, Jordan Herrema
|On-Site Speaker (Planned)
The variability of selective laser melting processes has been an important topic of discussion concerning the use of additively manufactured materials for critical applications. Specific questions regarding the variability of the material created and its performance are a major hurdle to certification and use. This work lays out a framework within which the variability in performance of a metal or metal alloy can be understood and applied to functional parts. A variety of materials (Ti-6Al-4V, Al10SiMg, 17-4 PH, 304L & 316L), equipment (Arcam A2X, Renishaw AM 250 & EOS M280), and properties (Tensile, Charpy Impact, Torsion, & Fatigue) are analyzed along with several process variables. Weibull statistics are performed on sample results and defect distributions identified and correlated to process and structural variations. Effective volume calculations are then used within finite element analysis to translate performance levels and variability from the various samples to a mock part geometry.
||Planned: Supplemental Proceedings volume