MateriAlZ Seminar: Dayalan Gunasegaram
Friday, March 1st, 2024 - 10:30 a.m. MST
Dayalan Gunasegaram
FIEAust CPEng NER (Mechanical) IntPE(Aus) APEC Engineer
Principal Research Engineer/Scientist & Computational Modelling Specialist
Commonwealth Scientific and Industrial Research Organization (CSIRO/Australia)
"The Role of Modeling in the Adaptive Control of Additive Manufacturing"
Zoom link | Passcode: 579524
MateriAlZ Seminar website | YouTube | Twitter
Abstract
The seminar will be delivered in two parts:
Part 1: Towards Adaptive Metal Additive Manufacturing: The Role of Modeling in Real-time Process Control
Real-time process control based on online decision-making has long been considered an effective strategy to mitigate defects in the metal additive manufacturing process. This is because the uncertainties inherent in the highly dynamic and unstable process make it impossible to plan for all the unexpected situations that might arise during printing. However, by adaptively controlling the build in response to its current state and trajectory, it becomes possible to circumvent conditions that lead to defect formation. Although recent advancements in online monitoring have yielded remarkable progress in enhancing real-time diagnostic capabilities, the deployment of prognostic real-time process control has lagged due to several hurdles. One of these is a need for a robust process model that can be consulted in real time for guidance. This talk will discuss, with recent examples, the role of physics-based and data-driven models in providing the predictive capabilities required for intelligent online closed-loop control.
Part 2: Research at CSIRO Manufacturing, postdoc opportunities, and life in Melbourne VIC
A highlight of the research portfolio of CSIRO’s Manufacturing Business Unit will be provided. Details of CSIRO’s sought after postdoc program, differentiated from those of universities, will also be discussed. This will be followed by a small discussion on life in Melbourne, in the state of Victoria.
Bio
Dr. Gunasegaram is a computational modelling specialist at Australia’s National Science Agency which specializes in applied research for the benefit of the country’s commercial sector. Consequently, he has authored several patents and consults for the industry. He has also published several journal articles. He is interested in the application of physics-based and data-driven modeling to metal additive manufacturing (AM). Dr Gunasegaram advocates for the adoption of Industry 4.0/5.0 technologies in AM with a view to assuring quality in the process and product, increasing productivity, and improving sustainable production through reduced wastage.