The Fall 2021 MatSE 590 for graduate students consists of an exciting and jam-packed schedule. MATSE 590 is a colloquium (1-3 credits) consist of a series of individual lectures by faculty, students, or outside speakers.
Graduate students will receive a weekly email with information via @psu.edu email. Graduate students are required to attend all 590 Seminars. If you have any questions, please email Hayley Barnes at email@example.com.
*Due to the ongoing Covid Pandemic this program is being offered virtually through Zoom. Please reference the weekly email from Hayley Barnes (firstname.lastname@example.org) for Zoom link.
September 9, 2021
“Advancing metal additive manufacturing: applying new tools in simulation, diagnostics and design”
Manyalibo J. Matthews, Division Leader, Materials Science Division, Lawrence Livermore National Laboratory
Metal additive manufacturing (AM) based on Laser Powder Bed Fusion (LPBF) has enabled several new applications for NNSA Missions over recent years and has become a strategic capability in the roadmap for stockpile modernization. Driving application of this technology is the added benefits afforded by design flexibility, enhanced functionality, production efficiency, responsiveness, and cost reduction. Despite all these advantages that continue to be demonstrated both within the complex and through the manufacturing industries, process development, qualification & certification and clear physics-engineering design strategies have often hampered the rapid deployment of LPBF AM towards emerging applications. In this presentation I will review efforts at LLNL aimed at addressing these challenges, specifically through development of model-driven feed-forward processes, advanced diagnostic analytics for process monitoring and topology optimized design of large lattice structures. Prepared by LLNL under Contract DE-AC52-07NA27344.
Manyalibo Matthews is the Division Leader for the Materials Science Division within the Physical and Life Sciences Directorate. His expertise includes laser materials processing, laser-matter interaction science, process optimization of advanced manufacturing, and high-speed in situ characterization methods. Prior to his current role, Matthews served as Group Leader in the Materials Science Division and Program Group Leader for the Laser Material Interaction Group in the National Ignition Facility and Photon Science organization. Before joining the Laboratory, Matthews was a member of the Technical Staff at Bell Laboratories, focusing on optical microspectroscopy and managing projects aimed at developing Passive Optical Network prototypes. Matthews is currently a co-organizer for the Materials Research Society and Materials Science and Technology symposiums, a member of the Academic Advisory Board at Norfolk State University, and a Fellow of the Optical Society of America.