“Understanding and Controlling Laser Powder Bed Fusion Metal 3D Printing” with Dr. Manyalibo J. Matthews

“Understanding and Controlling Laser Powder Bed Fusion Metal 3D Printing”

Dr. Manyalibo J. Matthews, Lawrence Livermore National Laboratory

Hosted by Prof. Zachary Cordero and the Department of Aeronautics and Astronautics

Abstract:

In this talk Dr. Manyalibo J. Matthews will review recent developments in understanding and controlling light-matter interaction and material response associated with laser powder bed fusion additive manufacturing.  As part of the critical assessment of the physics of the process, validated hydrodynamic finite element model simulations have proven to be extremely valuable and can be used to inform rapid solidification microstructural models.  Dr. Matthews will also discuss new approaches to process optimization that have emerged from our modeling efforts which can improve material properties and part performance.  An overview of materials science at LLNL will also be provided that includes materials for 3D printing and other areas of advanced materials and manufacturing.  

Biographical Sketch:

Manyalibo (“Ibo”) J. Matthews currently serves as Project Leader for the Accelerated Certification of Additively Manufactured Metals project and Group Leader of the Laser Materials Interaction Science group in the Materials Science Division of the Physical & Life Sciences Directorate at LLNL. He holds a PhD in Physics from MIT, and a BS in Applied Physics from UC Davis.  His research interests at LLNL include optimization of metal 3D printing processes, high power laser damage mechanisms, laser-based nanoscale modification of surfaces, and in situ characterization of transient processes. Prior to LLNL he was Member of Technical Staff at Bell Laboratories in Murray Hill, New Jersey where he worked on advanced methods for optical materials characterization and led a research group in advanced broadband access networks. Dr. Matthews has published over 160 peer-reviewed articles, two book chapters, holds 16 U.S. Patents and is a Fellow of the Optical Society of America.

Questions? Contact Prof. Zachary Cordero - zcordero@mit.edu

Boeing Career Development Professor in Aeronautics and Astronautics, Assistant Professor of Aeronautics and Astronautics