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25 - 30 January 2025
San Francisco, California, US
Conference 13350 > Paper 13350-9
Paper 13350-9

Dynamics and mechanisms of laser-based metal additive manufacturing processes (Invited Paper)

28 January 2025 • 8:30 AM - 9:00 AM PST | Moscone South, Room 308 (Level 3)

Abstract

Laser-based metal additive manufacturing (laser powder bed fusion and directed energy deposition) can manufacture geometrically and compositionally complex metal components directly from digital models without the design constraints of traditional manufacturing routs, which has potential to revolution many industries. However, laser-based metal additive manufacturing technologies still face critical challenges of (1) hard to predict and still relying on “trial and error”, (2) containing many uncertainties, (3) low fatigue life, and (4) lack of qualification and certification. This talk will present our research on overcoming these challenges to achieve predictable, consistent and reliable additive manufacturing through revealing the transient dynamics and fundamental mechanisms of laser-based metal additive manufacturing processes by in-situ high-speed synchrotron x-ray imaging and diffraction, as well as designing novel alloys and processing strategies based on the newly discovered mechanisms.

Presenter

Lianyi Chen
Univ. of Wisconsin-Madison (United States)
Dr. Lianyi Chen is Charles Ringrose Associate Professor in the Department of Mechanical Engineering and Department of Materials Science and Engineering at University of Wisconsin-Madison. His research activities and interests are at the intersection of materials science, advanced manufacturing, and advanced in-situ/in-operando characterization. His research goal is to drive performance and manufacturing of metals to a new height by integrating materials design and manufacturing. His research program includes three highly interrelated research areas: metal additive manufacturing, metals design based on nanoelements, and in-situ/operando characterization. Dr. Chen has published more than 90 peer-reviewed journal papers. He is also an inventor with 8 patents (2 licensed). His research results are highlighted, featured and reported by over 100 news outlets all over the world.
Application tracks: 3D Printing , Sustainability
Presenter/Author
Lianyi Chen
Univ. of Wisconsin-Madison (United States)