Additive at Penn State

Abdalla Nassar: Associate Research Professor Applied Research Lab | Penn State

Registation required. Zoom registration link available in notification email; email amdprogram@psu.edu with questions

ABSTRACT
In the past decade, the adoption of metal additive manufacturing (AM) for component fabrication and repair has rapidly accelerated. However, exploiting the full potential of metal AM necessitates significant progress in at least three areas. (1) The causes and effects of many defect types (e.g., internal discontinuities) observed in powder bed fusion and directed energy deposition must be elucidated and controlled. (2) Compelling use cases, which take advantage of AM-enabled geometries and surfaces, should be identified, designed, and demonstrated. (3) AM-specific materials, particularly composite and functionally-graded metals and metal- ceramic systems, require significant development. In this talk, I will present some progress on each of these fronts. In particular, each focus area will be described in the context of a cyber-physical system designed to simultaneously tailor a material and geometry. Pathways for further exploitation of metal AM, based on advanced process developments, in-situ sensing and control, data analytics, and materials and component engineering are presented.

BIOGRAPHY
Dr. Abdalla R Nassar is an associate research professor and a department head within the Materials Science Division of the Applied Research Laboratory (ARL) at Penn State and is affiliated with the Engineering Science and Mechanics Department, the Additive Manufacturing and Design Graduate Program, and the Department of Mechanical Engineering. Dr. Nassar is an interdisciplinary researcher, with a broad background and interests in advanced manufacturing, materials, cyber physical systems, optics, sensing, and data analytics. Over the past decade, his work has focused on the development, application, and control of metal additive manufacturing (AM) processes. His efforts have led to over 57 peer-reviewed publications, 11 invention disclosures (5 currently full or provisional), 1 book chapter, and 1 textbook currently under review.